Burr-BrownAudio

PCM2900C

PCM2902C

www.ti.com

SBFS039

– SEPTEMBER 2011

Stereo Audio Codec with USB Interface,

Single-Ended Analog Input/Output, and S/PDIF

Check for Samples: PCM2900C, PCM2902C

1

FEATURES

•

Stereo DAC:

234

•

PCM2900C: Without S/PDIF

– THD+N = 0.005%

•

PCM2902C: With S/PDIF

– SNR = 96 dB

•

On-Chip USB Interface:

– Dynamic Range = 93 dB

– With Full-Speed Transceivers

– Oversampling Digital Filter:

– Fully Compliant with USB 2.0 Specification

– Passband Ripple = ±0.1 dB

– Certified by USB-IF

– Stop Band Attenuation = –43 dB

– Partially Programmable Descriptors

– Single-Ended Voltage Output

– USB Adaptive Mode for Playback

– Analog LPF Included

– USB Asynchronous Mode for Record

•

Multifunctions:

– Bus Powered

– Human Interface Device (HID) Function:

•

16-Bit Delta-Sigma ADC and DAC

– Volume and Mute Controls

•

Sampling Rate:

– Suspend Flag Function

– DAC: 32 kHz, 44.1 kHz, 48 kHz

•

28-Pin SSOP Package

– ADC: 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz,

32 kHz, 44.1 kHz, 48 kHz

APPLICATIONS

•

On-Chip Clock Generator with Single 12-MHz

Clock Source

•

USB Audio Speaker

•

Single Power Supply:

•

USB Headset

•

USB Monitor

•

Stereo ADC:

•

USB Audio Interface Box

DESCRIPTION

– THD+N = 0.01%

The

PCM2900C/2902C

are

Texas

Instruments

'

– SNR = 89 dB

single-chip,

USB,

stereo

audio

codecs

with

a

– Dynamic Range = 89 dB

USB-compliant full-speed protocol controller and

S/PDIF

(PCM2902C

only).

The

USB

protocol

– Decimation Digital Filter:

controller

requires

no

software

code.

The

– Passband Ripple = ±0.05 dB

PCM2900C/2902C employ SpAct

™ architecture, TI's

– Stop Band Attenuation = –65 dB

unique system that recovers the audio clock from

USB packet data. On-chip analog PLLs with SpAct

– Single-Ended Voltage Input

architecture enable playback and record with low

– Antialiasing Filter Included

clock jitter as well as independent playback and

– Digital HPF Included

record sampling 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

© 2011, 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.