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