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參數資料
型號: TVP5158PNP
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉換
英文描述: COLOR SIGNAL DECODER, PQFP128
封裝: GREEN, PLASTIC, HTQFP-128
文件頁數: 22/108頁
文件大小: 1395K
代理商: TVP5158PNP
Peak
Detector
Bandpass
Filter
Peaking
Filter
Delay
IN
Gain
OUT
+
x
SLES243E
– JULY 2009 – REVISED MARCH 2011
Figure 3-6. Chroma Trap Filter Frequency Response, NTSC ITU-R BT.601 Sampling
Figure 3-7. Chroma Trap Filter Frequency Response, PAL ITU-R BT.601 Sampling
3.2.4
Luminance Processing
The digitized composite video signal passes through either a luminance comb filter or a chroma trap filter,
either of which removes chrominance information from the composite signal to generate a luminance
signal. The luminance signal is then fed into the input of a peaking circuit. Figure 3-8 shows the basic
functions of the luminance data path. A peaking filter (edge enhancer) amplifies high-frequency
components of the luminance signal. Figure 3-9 shows the characteristics of the peaking filter at four
different gain settings that are user-programmable via the I2C interface.
Figure 3-8. Luminance Edge-Enhancer Peaking Block Diagram
20
Functional Description
Copyright
2009–2011, Texas Instruments Incorporated
Product Folder Link(s): TVP5158 TVP5157 TVP5156
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相關代理商/技術參數
參數描述
TVP5158PNPR 功能描述:視頻 IC 4Ch NTSC/PAL Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
TVP5160 制造商:Texas Instruments 功能描述:2x10-bit Video Decoder TVP5160
TVP5160_11 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL/SECAM/Component 2x10-Bit Digital Video Decoder
TVP5160EVM 功能描述:視頻 IC 開發工具 TVP5160 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V
TVP5160PNP 功能描述:視頻 IC NTSC/PAL/SECAM/Comp 10B Dig Vid Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
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