Fast Shipping

Hassle Free Return

Money Back Guarantee

Authenticity Guarantee

Max4466 Adjustable Gain Blue Breakout Board For 6 Electret Microphone Amplifier

Item Description

6 Pieces electret microphone amplifier module MAX4466 adjustable gain blue breakout board Features: The MAX4466 is a micropower operational amplifier optimized for use as a microphone preamplifier. It is a nice combination of optimized gain bandwidth products and supply current, as well as low voltage operation in an ultra-small package. The MAX4466 has gain stability, requiring only 24μA of supply current to provide a 200kHz gain bandwidth. After decompression, a minimum stable gain of +5V/V can be achieved, and a 600kHz gain bandwidth product is provided. These amplifiers also have rail-to-rail output, high AVOL, and good power supply rejection and common-mode rejection ratio, suitable for working in noisy situations. Widely applied in cellular phones, digital repeaters, earphones, hearing aids, microphone preamplifiers, portable computers, and voice recognition systems. How to use: Connect GND to ground, VCC to 2.4 - 5VDC. The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC/2, so when it's quiet, the voltage will be a steady VCC/2 volts (it is DC coupled). If the audio device requires AC-coupled audio, please place a 100uF capacitor between the output pin and the input of the device. If you're connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required. The output pin is not designed to drive speakers, but to drive the smallest in-ear headphones. You need an audio amplifier (such as a 3.7W stereo amplifier). If you want to connect the amplifier directly to the speakers or it is connected to a microcontroller pin, no amplifier or decoupling capacitor is needed to connect the OUT pin directly to the microcontroller ADC pin. For audio-reactive projects, it is recommended to use the FFT driver library, which can take audio input and 'translate' it into frequencies. Specifications: Module

  • Application: MAX4466 microphone breakout is suitable for voice converters, audio recording and sampling, and audio response projects using FFT; On the back, there is a small trimmer pot to adjust the gain; You can set the gain from 25x to 125x
  • Parameters: power supply voltage: +2.4V to +5.5V (can be compatible with STM, Raspberry Pi and other development board motherboards); Power supply rejection ratio: 112dB; Common mode rejection ratio: 126dB; AVOL: 125dB (RL = 100kΩ) rail-to-rail output; Quiescent power supply current: <24μA; Gain bandwidth: 600kHz
  • 20-20KHz electret microphone soldered on: comes with a 20-20KHz electret microphone soldered on the board for audio-reactive projects; It is recommended to use the FFT driver library, which can take audio input and 'translate' it into frequencies
  • Easy to use: connect GND to ground, VCC to 2.4-5VDC; For the good performance, use the 'quietest' supply available (this would be the 3.3V supply)
  • Power supply noise rejection function: the amplifier has good power supply noise rejection

  • Customer service is our top priority! Please be sure to read the description thoroughly to make sure that this is the item you want before making a purchasing decision. If you have any questions about this item, please contact us via messages before placing your order. We make every effort possible to accurately describe and depict the items. Please be aware that slight variations in color may be due to differences in lighting and computer monitor resolutions. All items are in stock at the time of listing however, in the unlikely and unforeseen event that we are unable to fulfill your order through any of our networked warehouses, we will notify you as quickly as possible and offer you a 100% refund on your purchase. Thank you for shopping with us. We appreciate your business!

    PayPal is our preferred method of payment. If you do not have a PayPal account, all major credit cards are gladly accepted through PayPal as the payment processor. PayPal offers great buyer and seller protection. Your order will be processed pending receipt of cleared payment through PayPal. Sales tax may be charged depending on your location.

    We provide fast, free shipping. Most items are shipped within 3-5 business days of receiving cleared payment. We ship to the lower 48 contiguous United States only. We do not ship to P.O. Boxes or APOs. Standard Shipping is ALWAYS FREE! You will be notified via messages as soon as your items ship. Special Notice for Freight Items: If an item ships via Freight (Truck) Delivery, a valid phone number will be required so that we can contact you to schedule delivery. The item may be delivered with curbside delivery. An adult signature will be required. Please be sure to have available help on hand to assist you with moving the item to the desired location in or outside of your home. Freight items must be inspected upon delivery. In the unlikely event that damaged is observed, you MUST refuse delivery and note the damage on the shipping receipt and send it back via the Freight carrier. Returns will not be accepted on Freight items after they have been delivered, inspected, and the driver has left the premises.

    We offer a 30 day return/exchange policy for most of our products. You can request a refund if you are dissatisfied for any reason with your product. (Restocking Fee May Apply). Only factory defects are accepted as a reason for a return. In the case of factory defects, if available, we will replace the product for you. When returning an item, it must be in all of the original packaging and include all of the original accessories or items that came with it. The item and package should be in original and perfect condition. You will be required to cover shipping on the return of non-defective items. All returns MUST be done within 30 days of date of purchase. Please note that we cannot give refunds or replacements after the 30 day limit has expired. When sending in a return, please note that it can take up to 7 business days for the return to be processed. We do our best to process as quickly as possible. We are extremely fair, and in the rare event of something out of the ordinary happening with our products or shipping, we will gladly work with you to find a fair resolution.