AK4955 Overview
The AK4955 is a 24bit stereo CODEC with a microphone amplifier, speaker amplifier, video amplifier, LDO, and DSP. The input circuits include a microphone amplifier and the output circuits include a speaker amplifier. It is suitable for portable application with recording/playback function.
AK4955 Key Features
- Stereo Single-ended input with two Selectors
- MIC Amplifier (+24dB/+21dB/+18dB/+16dB/+14dB/+11dB/+8dB/+5dB/0dB)
- Digital ALC (Automatic Level Control)
- ADC Performance: S/(N+D): 81dB, DR, S/N: 88dB (MIC-Amp=+18dB)