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PCM2906 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
描述:
具有 USB 接口、单端输入/输出和 SPDI/F 的立体声音频编解码器
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PCM2906数据手册
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1
FEATURES
APPLICATIONS
DESCRIPTION
PCM2904
PCM2906
SLES042C – JUNE 2002 – REVISED NOVEMBER 2007
STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE-ENDED ANALOG
INPUT/OUTPUT AND S/PDIF
– Pass-Band Ripple = ± 0.1 dB
23
• PCM2904: Without S/PDIF – Stop-Band Attenuation = – 43 dB
• PCM2906: With S/PDIF – Single-Ended Voltage Output
• On-Chip USB Interface: – Analog LPF Included
– With Full-Speed Transceivers • Multifunctions:
– Fully Compliant With USB 1.1 Specification – Human Interface Device (HID) Volume ±
Control and Mute Control
– Certified by USB-IF
– Suspend Flag
– Partially Programmable Descriptors
(1)
• Package: 28-Pin SSOP
– USB Adaptive Mode for Playback
– USB Asynchronous Mode for Record
– Bus Powered
• USB Audio Speaker
• 16-Bit Delta-Sigma ADC and DAC
• USB Headset
• Sampling Rate:
• USB Monitor
– DAC: 32, 44.1, 48 kHz
• USB Audio Interface Box
– ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
• On-Chip Clock Generator With Single 12-MHz
Clock Source
The PCM2904/2906 is Texas Instruments single-chip
• Single Power Supply: 5 V Typical (V
BUS
) USB stereo audio codec with USB-compliant
full-speed protocol controller and S/PDIF (PCM2906
• Stereo ADC
only). The USB protocol controller works with no
– Analog Performance at V
BUS
= 5 V
software code, but the USB descriptors can be
– THD+N = 0.01%
modified in some areas (for example, vendor
ID/product ID). The PCM2904/2906 employs SpAct™
– SNR = 89 dB
architecture, TI's unique system that recovers the
– Dynamic Range = 89 dB
audio clock from USB packet data. On-chip analog
– Decimation Digital Filter
PLLs with SpAct enable playback and record with low
clock jitter and with independent playback and record
– Pass-Band Ripple = ± 0.05 dB
sampling rates.
– Stop-Band Attenuation = – 65 dB
– Single-Ended Voltage Input
– Antialiasing Filter Included
– Digital LCF Included
• Stereo DAC:
– Analog Performance at V
BUS
= 5 V
– THD+N = 0.005%
– SNR = 96 dB
– Dynamic Range = 93 dB
– Oversampling Digital Filter
(1) The descriptor can be modified by changing a mask.
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002 – 2007, 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.
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