BurrBrown Products

from Texas Instruments

FEATURES

APPLICATIONS

DESCRIPTION

Lch In

Rch In

Analog Front-End

Delta-Sigma

Modulator

Digital

Decimation

Filter

Serial Interface

and

Mode Control

Digital Out

Mode Control

System Clock

B0006-01

Digital In

Digital

Interpolation

Filter

Lch Out

Rch Out

Low-Pass Filter

and

Output Buffer

Multilevel

Delta-Sigma

Modulator

*

* PCM3002 Only

PCM3002

PCM3003

SBAS079A – OCTOBER 2000 – REVISED OCTOBER 2004

16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS

•

Single 3-V Power Supply

•

Monolithic 20-Bit

∆Σ ADC and DAC

•

Small Package: SSOP-24

•

16/20-Bit Input/Output Data

•

Software Control: PCM3002

•

DVC Applications

•

Hardware Control: PCM3003

•

DSC Applications

•

Stereo ADC:

•

Portable/Mobile Audio Applications

– Single-Ended Voltage Input

– Antialiasing Filter

– 64

× Oversampling

The

PCM3002

and

PCM3003

are

low-cost,

– High Performance

single-chip stereo audio codecs (analog-to-digital and

digital-to-analog converters) with single-ended analog

• THD+N: –86 dB

voltage input and output.

• SNR: 90 dB

The ADCs and DACs employ delta-sigma modulation

• Dynamic Range: 90 dB

with 64-times oversampling. The ADCs include a

•

Stereo DAC:

digital decimation filter, and the DACs include an

– Single-Ended Voltage Output

8-times oversampling digital interpolation filter. The

DACs also include digital attenuation, de-emphasis,

– Analog Low-Pass Filter

infinite zero detection, and soft mute to form a

– 64

× Oversampling

complete subsystem. The PCM3002 and PCM3003

– High Performance

operate with left-justified (ADC) and right-justified

(DAC) formats, while the PCM3002 also supports

• THD+N: –86 dB

other formats, including the I

• SNR: 94 dB

The PCM3002 and PCM3003 provide a power-down

• Dynamic Range: 94 dB

mode that operates on the ADCs and DACs indepen-

•

Special Features (PCM3002, PCM3003)

dently.

– Digital De-Emphasis: 32 kHz, 44.1 kHz,

The PCM3002 and PCM3003 are fabricated using a

48 kHz

highly advanced CMOS process, and are available in

– Power Down: ADC/DAC Independent

a

24-pin

SSOP

package.

The

PCM3002

and

•

Special Features (PCM3002)

PCM3003

are

suitable

for

a

wide

variety

of

cost-sensitive consumer applications where good per-

– Digital Attenuation (256 Steps)

formance is required.

– Soft Mute

The PCM3002 programmable functions are controlled

– Digital Loopback

by software. The PCM3003 functions, which are

– Four Alternative Audio Data Formats

controlled

by

hardware,

include

de-emphasis,

•

Sampling Rate: 4 kHz to 48 kHz

power-down, and audio data format selections.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

System Two, Audio Precision are trademarks of Audio Precision, Inc.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2004, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.