Asahi Kasei Microdevices AK4317
The AK4317 is a 1bit stereo DAC with channel separated volume and channel mixer. This DAC also includes 18bit digital filter and analog LPF. In the AK4317, the loss of accuracy from clock jitter is also improved by using SCF techniques for on-chip post filter.GENERAL DESCRIPTION
A 1bit DAC can achieve monotonicity and low distortion with no adjustment and is superior to traditional R-2R ladder based DACs. 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 0172-E-01 -1- 1997/5 ASAHI KASEI [AK4317] Ordering Guide AK4317-VF AKD4317 Pin Layout -40∼+85°C Evaluation Board 24pin VSOP(0.65mm pitch) Compatibility with AK4311/A 1. Changed Specs Parameter Resolution Operating Temperature Power Supply Digital I/F level X'tal Oscillator DR Package AK4311 16bit -40∼85°C 3∼5.5V CMOS Yes 92dB SSOP AK4311A 16bit -10∼70°C 3∼5.5V CMOS Yes 91dB SSOP AK4317 16/18bit -40∼85°C 4.5∼5.5V TTL No 92dB VSOP 2.