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PCM3002/3003

PCM3002

PCM3003

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PCM3002

PCM3003

FEATURES

q MONOLITHIC 20-BIT

∆Σ ADC AND DAC

q 16-/20-BIT INPUT/OUTPUT DATA

q SOFTWARE CONTROL: PCM3002

q HARDWARE CONTROL: PCM3003

q STEREO ADC:

Single-Ended Voltage Input

64 X Oversampling

High Performance

THD+N: –86dB

SNR: 90dB

Dynamic Range: 90dB

q STEREO DAC:

Single-Ended Voltage Output

Analog Low Pass Filter

64X Oversampling

High Performance

THD+N: –86dB

SNR: 94dB

Dynamic Range: 94dB

q SPECIAL FEATURES

Digital De-emphasis

Digital Attenuation (256 Steps)

Soft Mute

Digital Loop Back

Power Down: ADC/DAC Independent

q SAMPLING RATE: Up to 48kHz

q SYSTEM CLOCK: 256f

q SINGLE +3V POWER SUPPLY

q SMALL PACKAGE: SSOP-24

16-/20-Bit Single-Ended Analog Input /Output

STEREO AUDIO CODECs

TM

DESCRIPTION

The PCM3002 and PCM3003 are low cost single chip

stereo audio CODECs (analog-to-digital and digital-to-

analog converters) with single-ended analog voltage

input and output.

The ADCs and DACs employ delta-sigma modulation

with 64X oversampling. The ADCs include a digital

decimation filter, and the DACs include an 8X

oversampling digital interpolation filter. The DACs

also include digital attenuation, de-emphasis, infinite

zero detection and soft mute to form a complete

subsystem. PCM3002 and PCM3003 operate with

left-justified, and right-justified formats, while the

PCM3002 and PCM3003 provide a power-down mode

that operates on the ADCs and DACs independently.

Fabricated on a highly advanced CMOS process,

PCM3002 and PCM3003 are suitable for a wide vari-

ety of cost-sensitive consumer applications where good

performance is required.

PCM3002’s programmable functions are controlled

by software and the PCM3003’s functions include de-

emphasis, power down, and audio data format selec-

tions, which are controlled by hardware.

© 1997 Burr-Brown Corporation

PDS-1414C

Printed in U.S.A. January, 2000

Lch In

Rch In

Analog Front-End

Delta-Sigma

Modulator

Digital

Decimation

Filter

Serial Interface

and

Mode Control

Digital Out

Digital In

Serial Mode Control

System Clock

Lch Out

Rch Out

Low Pass Filter

and

Output Buffer

Multi-Level

Delta-Sigma

Modulator

Digital

Interpolation

Filter

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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

For most current data sheet and other product

information, visit www.burr-brown.com