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參數(shù)資料
| 型號： | DSD1792 |
| 元件分類： | DAC |
| 英文描述： | 24 bit 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(shù)模轉換器 |
| 文件頁數(shù)： | 43/56頁 |
| 文件大?。?/td> | 497K |
| 代理商： | DSD1792 |
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SLES067A MARCH 2003 REVISED AUGUST 2003
www.ti.com
43
Device ID Determination
The TDMCA mode also supports a multichip implementation in one system. This means a host controller (DSP) can
simultaneously support several TDMCA devices, which can be of the same type or different types, including PCM devices.
The PCM devices are categorized as IN device, OUT device, IN/OUT device, and NO device. The IN device has an input
port to get audio data, the OUT device has an output port to supply audio data, the IN/OUT device has both input and output
ports for audio data, and the NO device has no port for audio data but needs command data from the host. A DAC is an
IN device, an ADC is an OUT device, a CODEC is an IN/OUT device, and a PLL is a NO device. The DSD1792 is an IN
device. For the host controller to distinguish the devices, each device is assigned its own device ID by the daisy chain. The
devices obtain their own device IDs automatically by connecting their DCI to the DCO of the preceding device and their
DCO to the DCI of the following device in the daisy chain. The daisy chains are categorized as the IN chain and the OUT
chain, which are completely independent and equivalent. Figure 52 shows an example daisy chain connection. If a system
needs to chain the DSD1792 and a NO device in the same IN or OUT chain, the NO device should be chained at the back
end of the chain because it does not require any audio data. Figure 53 shows an example of TDMCA system including an
IN chain and an OUT chain with a TI DSP. For a device to get its own device ID, the DID signal must be set to 1 (see the
Command Field
section for details), and LRCK and BCK must be driven in the TDMCA mode for all PCM devices which
are chained. The device at the top of the chain knows its device ID is 1 because its DCI is fixed HIGH. Other devices count
the BCK pulses and observe their own DCI signal to determine their position and ID. Figure 54 shows the initialization of
each device ID.
IN Device
D
D
OUT Device
D
D
IN
OUT
IN/OUT
Device
IN Chain
OUT Chain
IN Device
OUT Device
D
D
D
D
D
D
D
D
IN
OUT
D
D
D
D
NO Device
D
D
NO Device
D
D
NO Device
NO Device
D
D
D
D
IN/OUT
Device
Figure 52. Daisy Chain Connection
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DSD1792A | 制造商:BB 制造商全稱:BB 功能描述:24-BIT, 192-KHZ SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER |
| DSD1792ADB | 功能描述:音頻數(shù)/模轉換器 IC 24B 192kHz Sampl Adv Segment Aud St DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(shù)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 |
| DSD1792ADBG4 | 功能描述:音頻數(shù)/模轉換器 IC 24B 192kHz Sampl Adv Segment Aud St DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(shù)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 |
| DSD1792ADBR | 功能描述:音頻數(shù)/模轉換器 IC 24B 192kHz Sampl Adv Segment Aud St DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(shù)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 |
| DSD1792ADBRG4 | 功能描述:音頻數(shù)/模轉換器 IC 24B 192kHz Sampl Adv Segment Aud St DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)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(shù)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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