AK4309B

更新时间： 2024-11-03 22:05:35

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AK4309B 数据手册

ASAHI KASEI

[AK4309B]

AK4309B

16Bit SCF DAC for Multimedia

General Description

The AK4309B is a 1bit stereo DAC for multimedia audio systems. A 1bit DAC can achieve monotonicity and

low distortion with no adjustment and is superior to traditional R-2R ladder based DACs. In the AK4309B, the

loss of accuracy from clock jitter is also improved by using SCF techniques for on-chip post filter. The

AK4309B includes continuous time filter with single end output and does not need any external parts.The

master clock can be either 256fs or 384fs, supporting various audio environment.

Features

Sampling Rate Ranging from 8kHz to 50kHz

On chip Perfect filtering

•

8 times FIR Interpolator

•

2nd order SCF and CTF

•

Total Response: ±0.5dB at 20kHz

On chip Buffer with Single End Output

Master Clock: 256fs or 384fs

High Tolerance to Clock Jitter

TTL Level Digital Interface

THD+N: -84dB

Dynamic Range: 90dB

Output Level: 3.4Vpp

Power Supply: 5V±10%

Low Power Dissipation: 80mW at 5V

Small Package: 20pin SSOP

Pin Compatible with AK4310/4309A

0177-E-00

1997/6

- 1 -

12 3 4 5 6 7...14

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