參數(shù)資料
型號： TVP70025IPZP
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： GREEN, PLASTIC, HTQFP-100
文件頁數(shù)： 5/59頁
文件大?。?/td> 519K
代理商： TVP70025IPZP
SLES232B
– JUNE 2008 – REVISED MAY 2011
The selection between bottom- and mid-level clamping is performed by I2C subaddress 10h (see Section
Sync-On-Green Threshold). The fine clamps also must be enabled via I2C register 2Ah for proper operation. The
internal clamping time can be adjusted using the I2C clamp start and width registers at subaddress 05h and 06h,
respectively (see Clamp Start and Clamp Width).
Table 4. Recommended Clamp Setting by Video Mode
SOG INPUT
GREEN ADC CHANNEL
RED ADC CHANNEL
BLUE ADC CHANNEL
VIDEO MODE
(Y/G)
(Pr/R)
(Pb/B)
YPbPr Component
Coarse
Fine Bottom Level
Fine Mid Level
PC Graphics
Coarse
Fine Bottom Level
SCART-RGB
Coarse
Fine Bottom Level
A single-pole low-pass filter with three selectable cutoff frequencies (0.5, 1.7, and 4.8 MHz) is implemented in the
feedback loop of the sync-tip clamp circuit.
Programmable Gain Control
The TVP70025I provides a 4-bit coarse analog gain control (before A/D conversion) and an 8-bit fine digital gain
control (after A/D conversion). The coarse analog gain and the fine digital gain are both independently
programmable for each ADC channel.
Coarse Gain Control
The 4-bit coarse analog gain control has a 4:1 linear gain control range defined by the following equation.
Coarse Gain = 0.5 + NCG/10, where 0 ≤ NCG ≤ 15
0.5
≤ Coarse Gain ≤ 2.0
Default: NCG = 7 (Coarse Gain = 1.2)
The 4-bit coarse gain control can scale a signal with a voltage-input compliance of 0.5 VPP to 2 VPP to a full-scale
10-bit A/D output code range. The minimum gain corresponds to a code 0h (2-VPP full-scale input, –6-dB gain)
while the maximum gain corresponds to code Fh (0.5-VPP full scale, +6-dB gain). The 4-bit coarse gain control is
independently controllable for each ADC channel (Red Coarse Gain, Green Coarse Gain, and Blue Coarse
Gain).
Fine Gain Control
The 8-bit fine digital gain control has a 2:1 linear gain control range defined by the following equation.
Fine Gain = 1.0 + NFG/256 where 0 ≤ NFG ≤ 255
1.0
≤ Fine Gain < 2.0
Default: NFG = 0 (Fine Gain = 1.0)
The 8-bit fine gain control is independently controllable for each ADC channel (Red Fine Gain, Green Fine Gain,
and Blue Fine Gain). For a normal PC graphics input, the fine gain is used mostly.
Programmable Offset Control
The TVP70025I provides a 6-bit coarse analog offset control (before A/D conversion) and a 10-bit fine digital
offset control (after A/D conversion). The coarse analog offset and the fine digital offset are both independently
programmable for each ADC channel.
Coarse Offset Control
A 6-bit code sets the coarse offset (Red Coarse Offset, Green Coarse Offset, Blue Coarse Offset) with individual
adjustment per channel. The coarse offset ranges from
–32 counts to +31 counts. The coarse offset registers
apply before the ADC.
Fine Offset Control
A 10-bit fine offset registers (Red Fine Offset, Green Fine Offset, Blue Fine Offset) apply after the ADC. The fine
offset ranges from
–512 counts to +511 counts.
Copyright
2008–2011, Texas Instruments Incorporated
13
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TVP70025IPZPR 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Tr 8/10B,165/110MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
TVP7002EVM 功能描述:視頻 IC 開發(fā)工具 TVP7002 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V
TVP7002PZP 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Tr 8/10B 165/110MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
TVP7002PZPR 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Tr 8/10B 165/110MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
TVP9000MZDSR 制造商:Texas Instruments 功能描述:
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