CDB4328 International Power Sources, Inc., CDB4328 Datasheet

CDB4328

Manufacturer Part Number

CDB4328

Description

18-bit, Stereo D/A Converter For Digital Audio

Manufacturer

International Power Sources, Inc.

Datasheet

1.CDB4328.pdf (31 pages)

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Features

Crystal Semiconductor Corporation

P.O. Box 17847, Austin, TX 78760

(512) 445-7222 FAX: (512) 445-7581

http://www.crystal.com

Complete Stereo DAC System

Adjustable System Sampling Rates

120 dB Signal-to-Noise Ratio

Low Clock Jitter Sensitivity

Completely Filtered Line-Level Outputs

Flexible Serial Interface for Either 16

or 18 bit Input Data

SDATAI

8 Interpolation Filter

64 Delta-Sigma DAC

Analog Post Filter

including 32kHz, 44.1kHz & 48kHz

Linear Phase Filtering

Zero Phase Error Between Channels

No External Components Needed

18-Bit, Stereo D/A Converter for Digital Audio

LRCK

BICK

RST

TST

CALO

Microcontroller

DIF0

Calibration

Interpolator

Serial Input

Interface

CMPI

DIF1

XTI XTO CKS

VD+

Delta-Sigma

Clock Osc/

Delta-Sigma

Modulator

Divider

DGND

ACKO

General Description

The CS4328 is a complete stereo digital-to-analog out-

put system. In addition to the traditional D/A function,

the CS4328 includes an 8 digital interpolation filter fol-

lowed by a 64

The modulator output controls the reference voltage in-

put to an ultra-linear analog low-pass filter. This

architecture allows for infinite adjustment of sample

rate between 1 kHz and 50 kHz while maintaining lin-

ear phase response simply by changing the master

clock frequency.

The CS4328 also includes an extremely flexible serial

port utilizing two select pins to support four different

interface modes.

The master clock can be either 256 or 384 times the

input word rate, supporting various audio environ-

ments.

ORDERING INFORMATION:

CS4328-KP

CS4328-KS

CS4328-BP

CS4328-BS

CDB4328

Crystal Semiconductor Corporation 1993

DAC

Voltage Reference

ACKI

AGND1

CALI

Low-Pass

VA-

Analog

Filter

oversampled delta-sigma modulator.

-40 to +85 C

CS4328 Evaluation Board

0 to 70 C

CMPO

VA+

CS4328

MOSFET

Output

Stage

28-pin Plastic DIP

28-pin Plastic SOIC

28-pin Plastic DIP

28-pin Plastic SOIC

-VREF

AOUTL

AOUTR

AGND2

AGND3

OCT ’93

DS62F3

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