AK4317 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK4317

18Bit SCF DAC with ATT & MIXER

Asahi Kasei Microdevices 

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

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