AK4317 Datasheet, PDF (1/19 Pages) Asahi Kasei Microsystems – 18BIT SCF DAC WITH ATT & MIXER

ASAHI KASEI
[AK4317]
AK4317
18Bit SCF DAC with ATT & MIXER
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
0172-E-01
-1-
1997/5