HALJIA MAX9814 High-performance Electret MIC Microphone Amplifier Module Auto Gain Control Compatible with Arduino CMA-4544PF-W
HALJIA MAX9814 High-performance Electret MIC Microphone Amplifier Module Auto Gain Control Compatible with Arduino CMA-4544PF-W - Image 2
HALJIA MAX9814 High-performance Electret MIC Microphone Amplifier Module Auto Gain Control Compatible with Arduino CMA-4544PF-W - Image 3
HALJIA MAX9814 High-performance Electret MIC Microphone Amplifier Module Auto Gain Control Compatible with Arduino CMA-4544PF-W - Image 4

HALJIA MAX9814 High-performance Electret MIC Microphone Amplifier Module Auto Gain Control Compatible with Arduino CMA-4544PF-W

$22.99

  • The MAX9814 is a high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias. The device features a low-noise preamplifier, variable gain amplifier (VGA), output amplifier, microphone-bias-voltage generator and AGC control circuitry.
  • The low-noise preamplifier has a fixed 12dB gain, while the VGA gain automatically adjusts from 20dB to 0dB, depending on the output voltage and the AGC threshold. The output amplifier offers selectable gains of 8dB, 18dB, and 28dB. With no compression, the cascade of the amplifiers results in an overall gain of 40dB, 50dB, or 60dB.
  • A trilevel digital input programs the output amplifier gain. An external resistive divider controls the AGC threshold and a single capacitor programs the attack/release times.
  • A trilevel digital input programs the ratio of attack-to-release time. The hold time of the AGC is fixed at 30ms. The low-noise microphone-bias-voltage generator can bias most electret microphones.
  • The MAX9814 is available in the space-saving, 14-pin TDFN package. This device is specified over the -40C to +85C extended temperature range. MAX9814: Simplified Block Diagram; MAX9814: Simplified Block Diagram Enlarge+.

In stock

— OR  —

— OR  —

  • International Express shipping available
  • 30 day easy returns
Guaranteed Safe Checkout

Feature:
Automatic Gain Control (AGC).
Three Gain Settings (40dB, 50dB, 60dB).
Programmable Attack Time.
Programmable Attack and Release Ratio.
2.7V to 5.5V Supply Voltage Range.
Low Input-Referred Noise Density of 30nV.
Low THD: 0.04% (typ).
Low-Power Shutdown Mode.
Internal Low-Noise Microphone Bias, 2V.
Available in the Space-Saving, 14-Pin TDFN (3mm x 3mm) Package.
-40°C to +85°C Extended Temperature Range.
Applications/Uses: Bluetooth Headsets, Digital Still Cameras, Digital Video Cameras, Entertainment Systems (e.g. Karaoke), High-Quality Portable Recorders, IP Phones/Telephone Conferencing, PDAs, Two-Way Communicators.
Size：25.5*14*8mm(L*W*H)
Weight:2.3g

Packing List:
1 x MAX9814 Module

Additional information

Weight 0.02 kg
Brand

HALJIA
EAN

0798863213605
UPC

798863213605
SKU: B07QM7HRP1 Category: Tags: , ,

Latest Reviews

Happy customer with our Purchase.

October 9, 2024

We purchased a TAIMIKO Commercial Kitchen Knee Operated Hand Wash Sink. It was the best price we could find even with shipping to NZ. Once we brought we got some red flags from Gmail but with communication with Bigamart it did arrive and is exactly what we ordered. Thank you for all you time helping us we really appreciate it. Would use again.

Kim Andrews

Thanks

June 7, 2024

I surely want to use your shop again!

Mina

No

June 1, 2024

No

Puja chettri

I love this product

October 10, 2023

I only received one

Maria Bethley

very good

September 18, 2023

Great service

Just a liitle expensive

Limor

Layla

July 27, 2023

Layla

Layla Corte-herrera

Stellar

May 19, 2023

Absolutely perfect. Nailed it. The embroidery is amazing. Definitely exceeded expectations. Placing the order was easy and the delivery was speedy.

Claudia Bruno di Belmonte

TLM foundation color changing

March 7, 2023

Best I have ever used on my face thank you so much for this product I am in my third bottle

Helene Fish

Great customer service

February 9, 2023

I Purchased a yale lock,it did not work with my door.

Bigamart.com customer service gave full refund, with very few questions.

Will return for additional purchases.

Jon

Invicta Grand Diver #3044

January 22, 2023

I received this watch as a gift from a fellow Watch collector, usually high-end Swiss Chronographs. I can assure you this watch will not disappoint You in any way. I wanted to not like it as much as my other watches, just to be a watch snob. However I’m extremely pleased with this watch and am happily surprised at its quality. I really appreciate this gift and wouldn’t hesitate to get another for myself or as a gift for someone who appreciates a nice watch. For the price you really can not make a better choice in a time piece.

Louie G