AK4637 Overview
The AK4637 is a low power 24-bit Mono CODEC with a microphone and speaker amplifiers. The AK4637 supports sampling frequency from 8kHz to 48kHz. It is suitable for a wide range of application from speech signal processing for narrowband, wideband and super wideband to sound signal processing for audio band.
AK4637 Key Features
- Analog Input 1 Monaural Single-ended input or Differential input
- Microphone Amplifier: +30dB ~ 0dB, 3dB Step
- Microphone Power Supply: 2.0V or 2.4V, Noise Level= 108dBV
- Digital ALC (Automatic Level Control)
- Setting Range: +36dB 52.5dB, 0.375dB Step & Mute
- ADC Performance: S/(N+D): 83dB, DR, S/N: 88dB (MIC-Amp=+18dB) S/(N+D): 84dB, DR, S/N: 95dB (MIC-Amp=0dB)
- Wind Noise Reduction Filter
- 5-Band Notch Filter: Include Dynamic Gain Control
- Digital Microphone Interface
- Digital ALC (Automatic Level Control)