96kHz/192kHz 24-Bit 4ch ADC & 8ch DAC with Differential Input

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The AK4629 is a single chip audio CODEC that includes four ADC channels and eight DAC channels. The converters are designed with Enhanced Dual Bit architecture for the ADC’s, and Advanced Multi-Bit architecture for the DAC, enabling very low noise performance. The AK4629 ADC supports both single-ended and differential inputs and outputs. A wide range of applications can be realized, including home theater, pro audio and car audio. The AK4629 is available in a 48-pin LQFP package.

Key Features

• 4ch 24bit ADC

- 64x Oversampling

- Sampling Rate up to 96kHz

- Linear Phase Digital Anti-Alias Filter

- Single-ended / Differential Input

- S/(N+D): 92dB (Single-ended, Differential)

- Dynamic Range, S/N: 102dB (Single-ended), 103dB (Differential)

- Digital HPF for offset cancellation

- I/F format: MSB justified, I2S or TDM

• 8ch 24bit DAC

- 128x Oversampling

- Sampling Rate up to 192kHz

- 24bit 8 times Digital Filter

- Single-ended Outputs

- On-chip Switched-Capacitor Filter

- S/(N+D): 90dB

- Dynamic Range, S/N: 106dB

- I/F format: MSB justified, LSB justified(20bit,24bit), I2S or TDM

- Individual channel digital volume with 128 levels and 0.5dB step

- Soft mute

- De-emphasis for 32kHz, 44.1kHz and 48kHz

- Zero Detect Function

• High Jitter Tolerance

• TTL Level Digital I/F

• 3-wire Serial and I2C Bus µP I/F for mode setting

• Master clock: 256fs, 384fs or 512fs for fs=32kHz to 48kHz

128fs, 192fs or 256fs for fs=64kHz to 96kHz

128fs for fs=120kHz to 192kHz

• Power Supply: 4.5 to 5.5V

• Power Supply for output buffer: 2.7 to 5.5V

• Small 48pin LQFP

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Block Diagram

Block Diagram

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