PCM2906C

www.ti.com

SBFS037

– NOVEMBER 2011

Stereo Audio Codec

with USB Interface, Single-Ended Analog Input/Output, and S/PDIF

Check for Samples: PCM2906C

1

FEATURES

•

Stereo DAC:

234

•

On-Chip USB Interface:

– THD+N = 0.005%

– With Full-Speed Transceivers

– SNR = 96 dB

– Fully Compliant with USB 2.0 Specification

– Dynamic Range = 93 dB

– Certified by USB-IF

– Oversampling Digital Filter:

– USB Adaptive Mode for Playback

– Passband Ripple = ±0.1 dB

– USB Asynchronous Mode for Record

– Stop-Band Attenuation = –43 dB

– Bus Powered

– Single-Ended Voltage Output

•

16-Bit Delta-Sigma ADC and DAC

– Analog LPF Included

•

Sampling Rate:

•

Multifunctions:

– DAC: 32, 44.1, 48 kHz

– Human Interface Device (HID) Function:

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

– Volume and Mute Controls

•

On-Chip Clock Generator with Single 12-MHz

Clock Source

– Suspend Flag Function

•

S/PDIF Input/Output

•

28-Pin SSOP Package

•

Single Power Supply:

APPLICATIONS

•

USB Audio Speaker

•

Stereo ADC:

•

USB Headset

•

USB Monitor

– THD+N = 0.01%

•

USB Audio Interface Box

– SNR = 89 dB

– Dynamic Range = 89 dB

DESCRIPTION

– Decimation Digital Filter:

The PCM2906C is Texas Instruments

' single-chip,

– Passband Ripple = ±0.05 dB

USB, stereo audio codec with a USB-compliant

full-speed protocol controller and S/PDIF. The USB

– Stop-Band Attenuation = –65 dB

protocol controller requires no software code. The

– Single-Ended Voltage Input

PCM2906C

employs

SpAct

™

architecture,

TI

's

– Antialiasing Filter Included

unique system that recovers the audio clock from

– Digital HPF Included

USB packet data. On-chip analog PLLs with SpAct

enable playback and record with low clock jitter, as

well as independent playback and 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.