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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

TM

49%

FPO

PCM1719

®

Stereo Audio

DIGITAL-TO-ANALOG CONVERTER

FEATURES

q ACCEPTS 16- OR 18-BIT INPUT DATA

q COMPLETE STEREO DAC:

8X Oversampling Digital Filter

Multi-Level Delta-Sigma DAC

Analog Low Pass Filter

q ON-CHIP HEADPHONE AMPLIFIER

q HIGH PERFORMANCE:

–88dB THD+N

96dB Dynamic Range

100dB SNR

q SELECTABLE FUNCTIONS:

Digital De-emphasis

Digital Attenuation (256 Steps)

Soft Mute

Multiple Output Formats

q SYSTEM CLOCK: 256f

q SINGLE +5V POWER SUPPLY

q SMALL 28-PIN SSOP PACKAGE

DESCRIPTION

PCM1719 is a complete, low cost stereo audio digital-

to-analog converter (DAC) including a digital interpo-

lation filter, 3rd-order delta-sigma DAC, an analog

low-pass filter and output amplifier. PCM1719 also

has an on-chip stereo headphone amplifier.

PCM1719 can accept either 16-, or 18-bit input data.

The audio data input format can be either MSB-first,

0.6

µs CMOS process, which delivers high perfor-

mance at very low power dissipation.

PCM1719 is ideal for applications which require head-

phone drivers such as CD-ROM drives, digital audio

workstations, portable CD players, and digital musical

instruments.

© 1996 Burr-Brown Corporation

PDS-1343A

Printed in U.S.A., November, 1996

Serial

Input

I/F

Mode

Control

I/F

Clock

and

OSC

Manager

8X Oversampling

Digital Filter

with Multi-Function

Control

V

CC

AGND V

DD

DGND

Multi-level

Delta-Sigma

Modulator

V

COM

Open Drain

DAC

Multi-level

Delta-Sigma

Modulator

Low-pass

Filter

Low-pass

Filter

BPZ-Cont.

V

ZERO

P

P

P

P

PCOM

PMUTE

DAC

ML

MC

MD

LRCIN

DIN

BCKIN

RSTB

XTI

XTO

CLKO

Reset

Power Supply

Headphone Amp

Mute

Bias

Headphone Amp

PGND PV

CC

PCM1719

PCM1719E