BurrBrown Products

from Texas Instruments

1

FEATURES

APPLICATIONS

DESCRIPTION

PCM2901

PCM2903

SLES034C – MARCH 2002 – REVISED NOVEMBER 2007

STEREO AUDIO CODEC WITH USB INTERFACE,

SINGLE-ENDED ANALOG INPUT/OUTPUT AND S/PDIF

234

• PCM2901: Without S/PDIF

• Stereo DAC

• PCM2903: With S/PDIF

–

• On-Chip USB Interface

–

THD+N = 0.005%

–

With Full-Speed Transceivers

–

SNR = 96 dB

–

Fully Compliant With USB 1.1 Specification

–

Dynamic Range = 93 dB

–

Certified by USB-IF

–

Oversampling Digital Filter

–

–

Pass-Band Ripple = ±0.1 dB

–

USB Adaptive Mode for Playback

–

Stop-Band Attenuation = –43 dB

–

USB Asynchronous Mode for Record

–

Single-Ended Voltage Output

–

Self-Powered

–

Analog LPF Included

• 16-Bit Delta-Sigma ADC and DAC

• Multifunctions

• Sampling Rates

–

Human Interface Device (HID) Volume ±

–

DAC: 32, 44.1, 48 kHz

Control and Mute Control

–

ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz

–

Suspend Flag

• On-Chip Clock Generator With Single 12-MHz

• Package: 28-Pin SSOP

Clock Source

• Single Power Supply: 3.3 V Typical

• Stereo ADC

• USB Audio Speaker

–

• USB Headset

• USB Monitor

–

THD+N = 0.01%

• USB Audio Interface Box

–

SNR = 89 dB

–

Dynamic Range = 89 dB

–

Decimation Digital Filter

The PCM2901/2903 is TI's single-chip USB stereo

–

Pass-Band Ripple = ±0.05 dB

audio codec with USB-compliant full-speed protocol

controller and S/PDIF (only PCM2903). The USB

–

Stop-Band Attenuation = –65 dB

protocol controller works with no software code, but

–

Single-Ended Voltage Input

the USB descriptors can be modified in some areas

–

Antialiasing Filter Included

(for

example,

vendor

ID/product

ID).

The

PCM2901/2903 employs SpAct™ architecture, TI's

–

Digital LCF Included

unique system that recovers the audio clock from

USB packet data. On-chip analog PLLs with SpAct

enable playback and record with low clock jitter and

with independent playback and record sampling

(1)

The descriptor can be modified by changing a mask.

rates.

1

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.

2

SpAct is a trademark of Texas Instruments.

3

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

4

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2002–2007, 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.