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參數(shù)資料
| 型號： | PCM2900EG4 |
| 元件分類： | Codec |
| 英文描述： | STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE ENDED ANALOG INPUT/OUTPUT AND S/PDIF |
| 中文描述： | 立體聲音頻編解碼器帶USB接口，單端模擬輸入/輸出和S / PDIF |
| 文件頁數(shù)： | 24/33頁 |
| 文件大?。?/td> | 380K |
| 代理商： | PCM2900EG4 |
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SLES035C MARCH 2002 REVISED MARCH 2007
www.ti.com
24
Copyright Management (PCM2902)
Isochronous-in data is affected by the serial copy management system (SCMS). Where receiving digital audio
data that is indicated as original data in the control bit, input digital audio data transfers to the host. If the data
is indicated as first generation or higher, transferred data is selected to analog input.
Digital audio data output is always encoded as original with SCMS control.
The implementation of this feature is an option for the customer. Note that it is the user’s responsibility whether
they implement this feature in their product or not.
INTERFACE SEQUENCE
Power On, Attach, and Playback Sequence
The PCM2900/2902 is ready for setup when the reset sequence has finished and the USB bus is attached. After
connection has been established by setup, the PCM2900/2902 is ready to accept USB audio data. While
waiting, the audio data (idle state) and analog output are set to bipolar zero (BPZ).
When receiving the audio data, the PCM2900/2902 stores the first audio packet, which contained 1-ms audio
data, into the internal storage buffer. The PCM2900/2902 starts playing the audio data when detecting the
following start of frame (SOF) packet.
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D+/D
2.5 V (Typ.)
0 V
Internal Reset
Ready for Setup
óóóó
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SOF
ó
ó
ó
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óó
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Ready for Playback
óó
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Bus Reset
Set Configuration
SOF
óóóó
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BPZ
Bus Idle
5 V
(Typ.)
1st Audio Data
2nd Audio Data
VBUS (Pin 3)
SSPND
VOUTL
VOUTR
700
μ
s
Device Setup
1 ms
Figure 32. Initial Sequence
Play, Stop, and Detach Sequence
When the host finishes or aborts the playback, the PCM2900/2902 stops playing after the last audio data has
played.
Record Sequence
The PCM2900/2902 starts the audio capture into the internal memory after receiving the SET_INTERFACE
command.
相關PDF資料 |
PDF描述 |
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| PCM2902EG4 | STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE ENDED ANALOG INPUT/OUTPUT AND S/PDIF |
| PCM3002EG | 16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS |
| PCM3002EG4 | 16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS |
| PCM3002EGE6 | 16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS |
| PCM3003EG4 | 16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCM2900EGE6 | 制造商:Texas Instruments 功能描述:USB CODEC (BUS POWERED) - Rail/Tube |
| PCM2901 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENDED ANALOG INPUT/OUTPUT AND S/P DIF |
| PCM2901E | 功能描述:接口—CODEC Ster Codec w/USB Ifc & Sngl-end I/O RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PCM2901E/2K | 功能描述:接口—CODEC Ster Codec w/USB Ifc & Sngl-end I/O RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PCM2901E/2KG4 | 功能描述:接口—CODEC Ster Codec w/USB Ifc & Sngl-end I/O RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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