General Description

The AK4317 is a 1bit stereo DAC with channel separated volume and channel mixer. This DAC also includes 18bit digital filter and analog LPF. A 1bit DAC can achieve monotonicity and low distortion with no adjustment and is superior to traditional R-2R ladder based DACs. In the AK4317, the loss of accuracy from clock jitter is also improved by using SCF techniques for on-chip post filter. Therefore, the AK4317 is suitable for the system like STB including PLL circuit.

Features

□ Sampling Rate Ranging from 8kHz to 50kHz
□ On chip Perfect filtering
• 8 times FIR Interpolator
• 2nd order SCF
• 2nd order CTF
□ Digital de-emphasis for 32, 44.1, 48kHz sampling
□ L/R Separated Volume
□ L/R Mixing
□ Soft Mute
□ Audio I/F format : MSB justified, LSB justified, I2S
□ Master Clock: 256fs or 384fs
□ High Tolerance to Clock Jitter
□ THD+N: -86dB
□ DR: 92dB
□ Power Supply:4.5 to 5.5V
□ Small Package: 24pin VSOP
□ AK4311 Compatible