參數(shù)資料
型號(hào)： DSD1792ADBG4
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： SERIAL INPUT LOADING, 24-BIT DAC, PDSO28
封裝： GREEN, PLASTIC, TSSOP-28
文件頁數(shù)： 47/57頁
文件大?。?/td> 634K
代理商： DSD1792ADBG4
DSD1792A
SLES106B FEBRUARY 2004 REVISED NOVEMBER 2006
www.ti.com
51
THEORY OF OPERATION
Analog Output
Digital Input
24 Bits
8 fS
MSB
and
Lower 18 Bits
Upper
6 Bits
ICOB
Decoder
3rd-Order
5-Level
Sigma-Delta
Advanced
DWA
Current
Segment
DAC
0–4
Level
0–62
Level
0–66
Figure 62. Advanced Segments DAC
The DSD1792A uses TI’s advanced segment DAC architecture to achieve excellent dynamic performance and
improved tolerance to clock jitter. The DSD1792A provides balanced current outputs.
Digital input data via the digital filter is separated into six upper bits and 18 lower bits. The six upper bits are
converted to inverted complementary offset binary (ICOB) code. The lower 18 bits, associated with the MSB,
are processed by a five-level third-order delta-sigma modulator operated at 64 fS by default. The 1 level of the
modulator is equivalent to the 1 LSB of the ICOB code converter. The data groups processed in the ICOB
converter and third-order delta-sigma modulator are summed together to an up to 66-level digital code, and then
processed by data-weighted averaging (DWA) to reduce the noise produced by element mismatch. The data
of up to 66 levels from the DWA is converted to an analog output in the differential-current segment section.
This architecture has overcome the various drawbacks of conventional multibit processing and also achieves
excellent dynamic performance.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DSD1792ADBR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24B 192kHz Sampl Adv Segment Aud St DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
DSD1792ADBRG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24B 192kHz Sampl Adv Segment Aud St DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
DSD1792DB 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
DSD1792DBG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
DSD1792DBR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
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