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AK4691 Key Features

  • 4-channel Single-ended Pre-Amp (Pre-Amp Gain: 0dB, +18dB, +20dB, +24dB or +28dB)
  • 2-channel Line Input
  • 3-input Selector (Internal MIC, External MIC or LINE)
  • 4-channel Digital ALC (Automatic Level Control)
  • ADC Performance: S/(N+D): 82dB, DR, S/N: 90dB (Pre-Amp=+24dB)

Related Asahi Kasei Microdevices Datasheets

Part Number Description
AK4695 24bit 4ch CODEC
AK4601 Audio HUB CODEC
AK4611 4/8-Channel Audio CODEC
AK4612 6-8-Channel Audio CODEC
AK4613 4/12-Channel Audio CODEC

AK4691 Description

The AK4691 is a 16bit, 4ch ADC and 2ch DAC with Microphone-Amplifier, Headphone-Amplifier, and Speaker-Amplifier. The recording block corresponds to supports 4-channel inputs, and also has 3-input selector for Internal/External MIC and LINE, output power for Microphone, Pre-Amp, and ALC (Automatic Level Control) circuit. The playback bock has Lineout-Amplifier, Headphone-Amplifier, and Speaker-Amplifier.