AK4351

更新时间： 2024-11-03 22:39:07

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
14页	136K
描述
18 BIT ADVANCED MULTI BIT 2CH DAC

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AK4351 数据手册

ASAHI KASEI

[AK4351]

AK4351

18Bit Advanced Multi Bit DS 2ch DAC

GENERAL DESCRIPTION

The AK4351 is a high cost performance 18bit stereo DAC for low-end digital audio systems. The

modulator in the AK4351 uses the new developed Advanced Multi Bit architecture with wide dynamic

range. The analog outputs are filtered in the analog domain by a combination of SCF and CTF.

Therefore, any external filters are not required. The SCF techniques also improve the loss of accuracy

from clock jitter. Therefore, the AK4351 is suitable for the system like STB including PLL circuit. The

AK4351 is available in very small 16pin TSSOP package, which reduces system space.

FEATURES

· Sampling Rate Ranging from 8kHz to 50kHz

· 128 times Oversampling

· Perfect filtering

18bit 8 times FIR Interpolator with 57dB attenuation

2nd order LPF

Total Response: ± 0.2dB at 20kHz

· On chip Buffer with Single End Output

· Digital de-emphasis for 44.1kHz sampling

· I/F format: MSB justified, 16/18bit LSB justified or I²S

· Master clock: 256fs or 384fs

· TTL Level Digital Interface

· THD+N: -88dB

· D-Range: 96dB

· High Tolerance to Clock Jitter

· Power supply: 4.5 to 5.5V

· Very Small Package: 16pin TSSOP (6.4mm x 5.0mm)

MCLK

CKS

TST

DIF0

DEM

DIF1

De-emphasis

Control

VDD

VSS

LRCK

Serial Input

Interface

BICK

Clock Divider

VCOM

SDATA

Modulator

LPF

AOUTL

AOUTR

Interpolator

Modulator

LPF

Interpolator

VREF

M0022-E-04

1999/12

- 1 -

12 3 4 5 6 7...14

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