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參數資料
| 型號： | PCM1796DBR |
| 元件分類： | DAC |
| 英文描述： | 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
| 中文描述： | 24位192千赫采樣高級分段音頻立體聲數模轉換器 |
| 文件頁數： | 49/57頁 |
| 文件大?。?/td> | 512K |
| 代理商： | PCM1796DBR |
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SLES100 DECEMBER 2003
www.ti.com
49
58 BCKs
Command Field
DID
LRCK
BCK
DI
DCO1
DCI2
Device ID = 1
Device ID = 2
DCO1
DCO2
DCI3
DCO29
DCI30
Device ID = 3
Device ID = 30
Figure 56. Device ID Determination Sequence
TDMCA Frame
In general, the TDMCA frame consists of the command field, extended command (EMD) field, and audio data fields.
All of them are 32 bits in length, but the lowest byte has no meaning. The MSB is transferred first for each field. The
command field is always transferred as the first packet of the frame. The EMD field is transferred if the EMD flag of
the command field is HIGH. If any EMD packets are transferred, no audio data follows the EMD packets. This frame
is for quick system initialization. All devices of a daisy chain should respond to the command field and extended
command field. The PCM1796 has two audio channels that can be selected by OPE (register 19). If the OPE bit is
not set to HIGH, those audio channels are transferred. Figure 57 shows the general TDMCA frame. If some DACs
are enabled, but corresponding audio data packets are not transferred, the analog outputs are unpredictable.
LRCK
BCK
DI
CMD
EMD
EMD
EMD
CMD
Don’t
Care
EMD
EMD
DO
Ch1
Ch(m)
Ch2
CMD
CMD
Ch2
Ch3
Ch(n)
CMD
Ch1
Ch4
DI
Ch3
Ch4
[For Initialization]
[For Operation]
32 Bits
DO
CMD
CMD
CMD
CMD
CMD
CMD
1/fS
Don’t
Care
Figure 57. General TDMCA Frame
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM1796DBRG4 | 功能描述:音頻數/模轉換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1798 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-BIT, 192-KHZ SAMPLING ADVANCED SEGMENT, AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
| PCM1798DB | 功能描述:音頻數/模轉換器 IC PCM1798 24-Bit 192kHz Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1798DB | 制造商:Texas Instruments 功能描述:D/A CONVERTER (D-A) IC |
| PCM1798DBG4 | 功能描述:音頻數/模轉換器 IC PCM1798 24-Bit 192kHz Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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