Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812
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Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812
SKU:X13160
Regular price
$6.99 USD
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Description:
End of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.
Gain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).
Microphones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)
Output connection:
1: difference Output: connect signal +, -, middle is GND grounded.
2: single-ended output: connect signal +, middle GND connect grounding
3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle
Three kinds of output connection can choose according to need
Operating voltage: DC 2.3 v to 5.5 v
The board size: 25 mm * 20 mm
Note: the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.
Package included:
1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output
Purchasing & Delivery
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Customers are able to pick the next available delivery day that best fits their schedule. However, to route stops as efficiently as possible, Shopify Shop will provide the time frame. Customers will not be able to choose a time. You will be notified in advance of your scheduled time frame. Please make sure that a responsible adult (18 years or older) will be home at that time.In preparation for your delivery, please remove existing furniture, pictures, mirrors, accessories, etc. to prevent damages. Also insure that the area where you would like your furniture placed is clear of any old furniture and any other items that may obstruct the passageway of the delivery team. Shopify Shop will deliver, assemble, and set-up your new furniture purchase and remove all packing materials from your home. Our delivery crews are not permitted to move your existing furniture or other household items. Delivery personnel will attempt to deliver the purchased items in a safe and controlled manner but will not attempt to place furniture if they feel it will result in damage to the product or your home. Delivery personnel are unable to remove doors, hoist furniture or carry furniture up more than 3 flights of stairs. An elevator must be available for deliveries to the 4th floor and above.
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Translation missing: en.products.product.regular_price $10.99 USD{"id":4420001202247,"title":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812","handle":"low-noise-hight-gain-electret-microphones-k472-amplifier-board-module-for-differential-single-ended-output-replace-max9812","description":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e","published_at":"2019-12-27T19:14:07+08:00","created_at":"2019-12-27T19:14:13+08:00","vendor":"diymore","type":"Integrated Circuits","tags":[],"price":699,"price_min":699,"price_max":699,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31583003082823,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X13160","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace 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style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e"} -
Translation missing: en.products.product.regular_price $17.99 USD{"id":4420001202247,"title":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812","handle":"low-noise-hight-gain-electret-microphones-k472-amplifier-board-module-for-differential-single-ended-output-replace-max9812","description":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e","published_at":"2019-12-27T19:14:07+08:00","created_at":"2019-12-27T19:14:13+08:00","vendor":"diymore","type":"Integrated Circuits","tags":[],"price":699,"price_min":699,"price_max":699,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31583003082823,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X13160","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace 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style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e"} -
Translation missing: en.products.product.regular_price $5.99 USD{"id":4420001202247,"title":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812","handle":"low-noise-hight-gain-electret-microphones-k472-amplifier-board-module-for-differential-single-ended-output-replace-max9812","description":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e","published_at":"2019-12-27T19:14:07+08:00","created_at":"2019-12-27T19:14:13+08:00","vendor":"diymore","type":"Integrated Circuits","tags":[],"price":699,"price_min":699,"price_max":699,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31583003082823,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X13160","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace 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style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e"} -
Translation missing: en.products.product.regular_price $8.99 USD{"id":4420001202247,"title":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812","handle":"low-noise-hight-gain-electret-microphones-k472-amplifier-board-module-for-differential-single-ended-output-replace-max9812","description":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e","published_at":"2019-12-27T19:14:07+08:00","created_at":"2019-12-27T19:14:13+08:00","vendor":"diymore","type":"Integrated Circuits","tags":[],"price":699,"price_min":699,"price_max":699,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31583003082823,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X13160","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace 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style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e"} -
Translation missing: en.products.product.regular_price $11.00 USD{"id":4420001202247,"title":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812","handle":"low-noise-hight-gain-electret-microphones-k472-amplifier-board-module-for-differential-single-ended-output-replace-max9812","description":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e","published_at":"2019-12-27T19:14:07+08:00","created_at":"2019-12-27T19:14:13+08:00","vendor":"diymore","type":"Integrated Circuits","tags":[],"price":699,"price_min":699,"price_max":699,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31583003082823,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X13160","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace 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Ended","id":6682453082183,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/Low-Noise-Hight-Gain-Electret-Microphones-K472-Amplifier-Board-Module-For-Differential-Single-Ended-Output-Replace_e052230f-6a77-41e4-ac1c-5b1aca57c2eb_972.jpg?v=1588699865"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/Low-Noise-Hight-Gain-Electret-Microphones-K472-Amplifier-Board-Module-For-Differential-Single-Ended-Output-Replace_e052230f-6a77-41e4-ac1c-5b1aca57c2eb_972.jpg?v=1588699865","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e"} -
Translation missing: en.products.product.regular_price $4.99 USD{"id":4420001202247,"title":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace MAX9812","handle":"low-noise-hight-gain-electret-microphones-k472-amplifier-board-module-for-differential-single-ended-output-replace-max9812","description":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e","published_at":"2019-12-27T19:14:07+08:00","created_at":"2019-12-27T19:14:13+08:00","vendor":"diymore","type":"Integrated Circuits","tags":[],"price":699,"price_min":699,"price_max":699,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31583003082823,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X13160","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Low Noise Hight Gain Electret Microphones K472 Amplifier Board Module For Differential Single Ended Output Replace 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Ended","id":6682453082183,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.diymore.cc\/cdn\/shop\/products\/Low-Noise-Hight-Gain-Electret-Microphones-K472-Amplifier-Board-Module-For-Differential-Single-Ended-Output-Replace_e052230f-6a77-41e4-ac1c-5b1aca57c2eb_972.jpg?v=1588699865"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/www.diymore.cc\/cdn\/shop\/products\/Low-Noise-Hight-Gain-Electret-Microphones-K472-Amplifier-Board-Module-For-Differential-Single-Ended-Output-Replace_e052230f-6a77-41e4-ac1c-5b1aca57c2eb_972.jpg?v=1588699865","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv\u003e\n\u003cp\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"33684419\" title=\"Head\" type=\"custom\"\u003e\u003c\/widget\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB12JMgilsmBKNjSZFsq6yXSVXaS.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eEnd of ultra low noise electret microphones pre-amp amplification board, using ST imported K472 electret microphones special amplifier chip, chip with low noise. Gain adjustable, power supply wide,and can be difference output, can also be single-ended output.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eGain adjustment: resistance R3 is gain adjustment resistance, when the default delivery is 30 db (resistance to 1 k), if not appropriate, can consult the table below change R3 resistance to obtain different gain, changes the resistance when the need to take off the original R3 SMD resistor (if you feel bad patch welding, welding the R3 can also use the plug-in beside two reserved welding plate above (gain is 0 to 40 db variable).\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eMicrophones connected: microphones positive + and negative -, GND on the board as a shield, don't need connected microphones (also can not meet, meet, but it is better to avoid interference)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOutput connection:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1: difference Output: connect signal +, -, middle is GND grounded.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e2: single-ended output: connect signal +, middle GND connect grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e3: Dual -channel output : signal +when a channel, signal - when a track, GND grounding in the middle\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThree kinds of output connection can choose according to need\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eOperating voltage: DC 2.3 v to 5.5 v \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003eThe board size: 25 mm * 20 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the board power supply had better not use the switch power supply, otherwise the low noise, interference may be serious.\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cspan style=\"font-size: 18.0px;font-family: times new roman , times;\"\u003e\u003cspan style=\"font-size: 16.0px;font-family: arial , helvetica , sans-serif;\"\u003e1PCS K472 Low Noise Electret Microphones Amplifier Board For Differential Single-Ended Output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1VXjubuUXBuNjt_a0q6AysXXaA.jpg\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iJn4XZfrK1Rjy0Fmq6xhEXXan.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N_D7XZrrK1RjSspaq6AREXXaK.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1iUY4XZvrK1Rjy0Feq6ATmVXaP.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13PP3XZfrK1RkSmLyq6xGApXaL.jpg\" width=\"1000\"\u003e\u003c\/p\u003e \r \u003cp\u003e \u003c\/p\u003e \r \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Hc.uimcqBKNjSZFgq6x_kXXaq.jpg\"\u003e\u003c\/p\u003e \r \u003cwidget data-widget-type=\"customText\" id=\"24006699\" title=\"Related\" type=\"custom\"\u003e\u003c\/widget\u003e \r \u003cp\u003e \u003c\/p\u003e \u003cscript\u003ewindow.adminAccountId=227552571;\u003c\/script\u003e \u003c\/div\u003e"}
