PCM2904 Datasheet, PDF (1/31 Pages) Burr-Brown (TI) – STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF

BurrĆBrown Products
from Texas Instruments
PCM2904
PCM2906
SLES042B − JUNE 2002 − REVISED MARCH 2007
STEREO AUDIO CODEC WITH USB INTERFACE,
SINGLEĆENDED ANALOG INPUT/OUTPUT AND S/PDIF
FEATURES
D PCM2904: Without S/PDIF
D PCM2906: With S/PDIF
D On-Chip USB Interface:
− With Full-Speed Transceivers
− Fully Compliant With USB 1.1
Specification
− Certified by USB-IF
− Partially Programmable Descriptors⁽¹⁾
− USB Adaptive Mode for Playback
− USB Asynchronous Mode for Record
− Bus Powered
D 16-Bit Delta-Sigma ADC and DAC
D Sampling Rate:
− DAC: 32, 44.1, 48 kHz
− ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
D On-Chip Clock Generator With Single 12-MHz
Clock Source
D Single Power Supply: 5 V Typical (V_BUS)
D Stereo ADC:
− Analog Performance at V_BUS = 5 V
− THD+N = 0.01%
− SNR = 89 dB
− Dynamic Range = 89 dB
− Decimation Digital Filter
− Pass-Band Ripple = ±0.05 dB
− Stop-Band Attenuation = –65 dB
− Single-Ended Voltage Input
− Antialiasing Filter Included
− Digital LCF Included
D Stereo DAC:
− Analog Performance at V_BUS = 5 V
− THD+N = 0.005%
− SNR = 96 dB
− Dynamic Range = 93 dB
− Oversampling Digital Filter
− Pass-Band Ripple = ±0.1 dB
− Stop-Band Attenuation = –43 dB
− Single-Ended Voltage Output
− Analog LPF Included
D Multifunctions:
− Human Interface Device (HID) Volume ±
Control and Mute Control
− Suspend Flag
D Package: 28-Pin SSOP, Lead-Free Product
APPLICATIONS
D USB Audio Speaker
D USB Headset
D USB Monitor
D USB Audio Interface Box
DESCRIPTION
The PCM2904/2906 is Texas Instruments single-chip
USB stereo audio codec with USB-compliant full-speed
protocol controller and S/PDIF (PCM2906 only). The
USB protocol controller works with no software code,
but the USB descriptors can be modified in some areas
(for example, vendor ID/product ID). The
PCM2904/2906 employs SpAct architecture, TI’s
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 rates.
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.
(1)The _{descriptor can be modified by changing a mask.}
SpAct is a trademark of Texas Instruments, Incorporated.
Apple. Mac, and Mac OS are trademarks of Apple Computer, Inc.
Intel is a trademark of Intel Corporation.
Microsoft, Windows, Windows Me, and Windows XP are trademarks of Microsoft Corporation.
Other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2007, Texas Instruments Incorporated
www.ti.com