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廬

PCM

49%

172

8

FPO

PCM1728

24-Bit, 96kHz Sampling

CMOS Delta-Sigma Stereo Audio

DIGITAL-TO-ANALOG CONVERTER

TM

FEATURES

q

ENHANCED MULTI-LEVEL DELTA-SIGMA DAC

q

SAMPLING FREQUENCY (f

S

): 16kHz - 96kHz

q

INPUT AUDIO DATA WORD:

16-, 20-, 24-Bit

q

HIGH PERFORMANCE:

THD+N: 鈥?6dB

Dynamic Range: 106dB

SNR: 106dB

Analog Output Range: 0.62 x V

CC

(Vp-p)

q

8x OVERSAMPLING DIGITAL FILTER:

Stop Band Attenuation: 鈥?2dB

Passband Ripple:

鹵

0.002dB

q

MULTI FUNCTIONS:

Digital De-emphasis

Soft Mute

Zero Flag

q

+5V SINGLE SUPPLY OPERATION

q

SMALL 28-LEAD SSOP PACKAGE

DESCRIPTION

The PCM1728 is designed for mid- to high-grade

digital audio applications which achieve 96kHz sam-

pling rates with 24-bit audio data. PCM1728 uses a

newly developed, enhanced multi-level delta-sigma

modulator architecture that improves audio dynamic

performance and reduces jitter sensitivity in actual

applications. The internal digital filter operates at 8X

oversampling at a 96kHz sampling rate.

The PCM1728 has superior audio dynamic perfor-

mance, 24-bit resolution, and 96kHz sampling, mak-

ing it ideal for mid- to high-grade audio applications

such as CD, DVD, and musical instruments.

AGND2L

V

CC2

R

AGND2L

V

CC2

L

BCKIN

LRCIN

DIN

Serial

Input

I/F

DAC

8X Oversampling

Digital Filter with

Function

Controller

Enhanced

Multi-level

Delta-Sigma

Modulator

DAC

Low-pass

Filter

V

OUT

L

EXTL

I

2

S

DM1

DM0

IW0

IW1

MUTE

RST

Crystal/OSC

Mode

Control

I/F

Low-pass

Filter

V

OUT

R

EXTR

ZERO

SCK

Open Drain

Power Supply

XTI

XTO

CLKO

V

CC1

AGND1

V

DD

DGND

International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111

Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132

漏 1998 Burr-Brown Corporation

PDS-1453A

Printed in U.S.A. April, 1998

next

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