eBay

Feature:

1. For amplification, we use the MAX4466, an op amp designed to accomplish this delicate task.
2. With excellent power supply noise rejection, so this amplifier sounds really good and isn't nearly as noisy or scratchy as other mic amp breakouts we've tried.
3. You can set the gain from 25x to 125x, perfect for reading from a microcontroller ADC. The output is rail‑to‑rail so if the sounds gets loudly, the output can go up to 5Vpp.
4. For the best performance, use the "quietest" supply available. The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC/2 so when its perfectly quiet, the voltage will be a steady VCC/2 volts (it is DC coupled). If the audio equipment you're using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your devices. If you are connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required.
5. Using it is simple: connect GND to ground, VCC to 2.4-5VDC.
6. The output pin is not designed to drive speakers or anything but the smallest in-ear headphones, you'll need an audio amplifier (such as our 3.7W stereo amp) if you want to connect the amp directly to speakers.

Specification:

Item Type: Microphone Amplifier Module
Power Supply Voltage: + 2.4V to + 5.5V (can be directly connected for /for and other development board)
Power Supply Rejection Ratio: 112dB
Common Mode Rejection Ratio: 126dB
AVOL: 125dB (RL = 100kΩ) Rail-To-Rail Output
Static Supply Current: <24μA
Gain Bandwidth: 600kHz
Size: Approx. 20.8 x 13.8 x 7.5mm / 0.8 x 0.5 x 0.3in

Package List:

1 x Module

1 x Pin Header

We accept .
We ship item to your verified address.
Payment must be received within 3 days from the date of purchase.

All the items will be dispatched within one business day by Airmail after the payment is clear.

Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday, weather, customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or longer for delivery.

We appreciate your patience if you haven't received items in 30 days(Russian customers may need more patience by reason of the local delivery system and/or customs). If you are concerned in any way, please feel to contact us via ebay message instead of leaving negative/neutral feedback or opening a dispute. We will do our best to solve any problem(resend or refund any missing item).

Customs duty is obligation and liability of citizens in your country, so buyer should be responsible for any tax and custom duty incurred. Generally, the delay or failure delivery is sometimes caused by the policy of different customs.

1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties.
2. duties,taxes,and charges are not included in the item price or shipping fee.
3. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase.
4. All disputes arising from the duties will be submitted to ebay for solution.

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We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.

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On 19-Jun-2024 at 23:43:14 BST, seller added the following information: