PCM2901EG4 Datasheet, PDF (1/37 Pages) Texas Instruments – STEREO AUDIO CODEC WITH USB INTERFACE SINGLE-ENDED ANALOG INPUT/OUTPUT AND S/PDIF

BurrĆBrown Products
from Texas Instruments
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
STEREO AUDIO CODEC WITH USB INTERFACE,
SINGLE-ENDED ANALOG INPUT/OUTPUT AND S/PDIF
FEATURES
1
•234 PCM2901: Without S/PDIF
• PCM2903: With S/PDIF
• 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
– Self-Powered
• 16-Bit Delta-Sigma ADC and DAC
• Sampling Rates
– DAC: 32, 44.1, 48 kHz
– ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
• On-Chip Clock Generator With Single 12-MHz
Clock Source
• Single Power Supply: 3.3 V Typical
• Stereo ADC
– Analog Performance at V_CCC = V_CCP1 = V_CCP2
= V_CCX = V_DD = 3.3 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
(1) The descriptor can be modified by changing a mask.
• Stereo DAC
– Analog Performance at V_CCC = V_CCP1 = V_CCP2
= V_CCX = V_DD = 3.3 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
• Multifunctions
– Human Interface Device (HID) Volume ±
Control and Mute Control
– Suspend Flag
• Package: 28-Pin SSOP
APPLICATIONS
• USB Audio Speaker
• USB Headset
• USB Monitor
• USB Audio Interface Box
DESCRIPTION
The PCM2901/2903 is TI's single-chip USB stereo
audio codec with USB-compliant full-speed protocol
controller and S/PDIF (only PCM2903). 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
PCM2901/2903 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.
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.
SpAct is a trademark of Texas Instruments.
2
System Two, Audio Precision are trademarks of Audio Precision, Inc.
3
All other trademarks are the property of their respective owners.
4
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2002–2007, Texas Instruments Incorporated