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參數資料
型號: THS1041CDW
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
封裝: GREEN, PLASTIC, SOIC-28
文件頁數: 18/41頁
文件大小: 810K
代理商: THS1041CDW
THS1041
SLAS289C OCTOBER 2001 REVISED OCTOBER 2004
25
www.ti.com
PRINCIPLES OF OPERATION
clamp operation (continued)
Line Sync
Black
Level
Video at AIN
CLAMP
Figure 39. Example Waveforms for Line-Clamping to a Video Input Black Level
clamp DAC output voltage range and limits
When using the internal clamp DAC, the user must ensure that the desired dc clamp level at AIN+/ lies within
the voltage range VREFB to VREFT. This is because the clamp DAC voltage is constrained to lie within this range
VREFB to VREFT. Specifically:
VDAC
+ V
REFB ) (VREFT * VREFB)
(0.006
) 0.988
(DAC code) 1024)
DAC codes can range from 0 to 1023. Figure 40 graphically shows the clamp DAC output voltage versus the
DAC code.
VDAC
0
1023
VREFB + 0.006(VREFTVREFB)
VREFB + 0.987(VREFTVREFB)
DAC Code
VREFT
VREFB
Figure 40. Clamp DAC Output Voltage Versus DAC Register Code Value
If the desired dc level at AIN+/ does not lie within the voltage range VREFT to VREFB, then either the CLAMPIN
pin can be used instead to provide a suitable reference voltage, or it may be possible to redesign the application
to move the AIN+/ input range into the CLAMP DAC voltage range.
(13)
相關PDF資料
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THS1041CPW 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
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THS1041CDWR 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
THS1041CPWR 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
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相關代理商/技術參數
參數描述
THS1041CDWG4 功能描述:模數轉換器 - ADC 10 Bit 40 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
THS1041CDWR 功能描述:模數轉換器 - ADC 10 Bit 40 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
THS1041CDWRG4 功能描述:模數轉換器 - ADC 10 Bit 40 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
THS1041CPW 功能描述:模數轉換器 - ADC 10 Bit 40 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
THS1041CPWG4 功能描述:模數轉換器 - ADC 10 Bit 40 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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