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AK4685 - Multi-channel CODEC

Description

The AK4685 is a single chip CODEC that integrates 4-channel ADC, 2-channel DAC and a stereo capacitor less headphone amplifier.

Features

  • † Asynchronous ADC/DAC1/DAC2 Operation † 4ch 24bit ADC - Differential Input - 64x Oversampling - Sampling Rate up to 48kHz - Linear Phase Digital Anti-Alias Filter - S/(N+D): 90dB - Dynamic Range, S/N: 102dB - Digital HPF for Offset Cancellation - Channel Independent Digital Volume (+24/-103dB, 0.5dB/step) - Soft Mute † Two 2ch 24bit DAC’s - Differential/Single-end Ouput (DAC1) - 128x Oversampling - Sampling Rate up to 192kHz - 24bit 8 times Digital Filter - S/(N+D): 92dB - Dynamic Range, S/N: 1.

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Datasheet Details

Part number AK4685
Manufacturer AKM
File Size 561.09 KB
Description Multi-channel CODEC
Datasheet download datasheet AK4685 Datasheet

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Full PDF Text Transcription

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[AK4685] AK4685 Multi-channel CODEC with Differential Analog I/O GENERAL DESCRIPTION The AK4685 is a single chip CODEC that integrates 4-channel ADC, 2-channel DAC and a stereo capacitor less headphone amplifier. The converters are designed with an Enhanced Dual Bit architecture for the ADC, and an Advanced Multi-Bit architecture for the DAC’s, enabling very low noise performance and achieving wide dynamic range. The differential analog inputs and outputs cancel noise on analog signal lines. Therefore, a stable system can be designed. The AK4685 has a dynamic range of 102dB for ADC, 106dB for DAC, and is well suited for digital TV and home theater systems.
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