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PCM2906B Datasheet(PDF) 1 Page - Texas Instruments

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Part # PCM2906B
Description  STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE-ENDED ANALOG INPUT/OUTPUT, AND S/PDIF
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

PCM2906B Datasheet(HTML) 1 Page - Texas Instruments

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Burr-BrownAudio
1
FEATURES
APPLICATIONS
DESCRIPTION
PCM2906B
www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008
STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE-ENDED ANALOG
INPUT/OUTPUT, AND S/PDIF
• Stereo DAC:
234
• On-Chip USB Interface:
Analog Performance at VBUS = 5 V:
With Full-Speed Transceivers
THD+N = 0.005%
Fully Compliant with USB 2.0 Specification
SNR = 96 dB
Certified by USB-IF
Dynamic Range = 93 dB
Partially Programmable Descriptors (1)
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
Suspend Flag Function
Clock Source
• 28-Pin SSOP Package
• S/PDIF Input/Output
• Single Power Supply:
• USB Audio Speaker
5 V Typical (VBUS)
• USB Headset
• Stereo ADC:
• USB Monitor
Analog Performance at VBUS = 5 V:
• USB Audio Interface Box
THD+N = 0.01%
SNR = 89 dB
Dynamic Range = 89 dB
The PCM2906B is Texas Instruments' single-chip,
Decimation Digital Filter:
USB, stereo audio codec with a USB-compliant
full-speed protocol controller and S/PDIF. The USB
Passband Ripple = ±0.05 dB
protocol controller requires no software code, but the
Stop-Band Attenuation = –65 dB
USB descriptors can be modified in some areas (for
Single-Ended Voltage Input
example,
vendor
ID
and/or
product
ID).
The
PCM2906B
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
(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 © 2008, 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.
Not Recommended for New Designs


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