24-Bit, 96kHz, Stereo Audio

DIGITAL-TO-ANALOG CONVERTER

49%

FPO

PCM1732

®

TM

FEATURES

q ENHANCED MULTI-LEVEL

∆Σ DAC

q INPUT AUDIO DATA WORD: 16-, 20-, 24-Bit

q SAMPLING FREQUENCY (f

q SYSTEM CLOCK: 256, 384, 512, 768f

S

q HIGH PERFORMANCE:

THD+N: –96dB

Dynamic Range: 104dB

SNR: 104dB

q AUDIO OUTPUT LEVEL: 0.57 x V

q 8x OVERSAMPLING DIGITAL FILTER WITH

HDCD DECODER:

Stopband Attenuation: –120dB

Passband Ripple:

HDCD Filter Optimized for 44.1kHz to 48kHz

and 88.2kHz to 96kHz

q MULTI-FUNCTIONS:

Digital De-emphasis

Soft Mute

Digital Attenuation

Zero Detect

Digital Gain Scaling

Reversible Output Phase

q +5V SINGLE-SUPPLY OPERATION

q SMALL SO-28 PACKAGE

© 1999 Burr-Brown Corporation

PDS-1522B

Printed in U.S.A. August, 1999

For most current data sheet and other product

information, visit www.burr-brown.com

®

DESCRIPTION

The PCM1732 is designed for mid- to high-grade

digital audio applications which achieve 96kHz sam-

pling rates with 24-bit audio data, such as High Defi-

nition Compatible Digital (HDCD) CD players, DVD

players, mini-disc players and AV receivers.

PCM1732 uses a newly-developed “enhanced, multi-

level delta-sigma modulator” architecture that im-

proves audio dynamic performance and reduces jitter

sensitivity.

The internal digital filter operates at 8x oversampling

at a 96kHz sampling rate, with –120dB stopband

attenuation.

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

®

Inc. The PCM1732’s design is covered by the following patents:

In the USA: 45,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274

5,854,600, 5,864,311, 5,872,531.

In Australia: 669,114.

Other patents pending.

Serial

Input

I/F

Mode

Control

I/F

HDCD

Hidden

Code

Recovery

HDCD

8x

Oversampling

Digital Filter

Enhanced

Multi-Level

∆Σ

Modulator

Crystal/OSC

XTI

SCK

XTO

CLKO

V

V

DD

DGND

HDCD

Amplitude

Decoding

V

EXTL

PCM1732

Open

Drain

DAC

Low-Pass

Filter

Low-Pass

Filter

BPZ Control

V

EXTR

ZERO

DAC

MC/DEM

MD/FSS

CS/IWO

MODE

MUTE

RST

LRCIN

DIN

BCKIN

Power Supply

Power-On Reset

NOTE: An HDCD license from Pacific Microsonics, Inc. is

required to purchase the PCM1732.