參數(shù)資料
型號: TVP5040CPFP
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PQFP80
封裝: POWER, PLASTIC, TQFP-80
文件頁數(shù): 24/109頁
文件大?。?/td> 568K
代理商: TVP5040CPFP
2–5
2.2.3
Y/C Separation
Figure 2–5 illustrates the luminance/chrominance (Y/C) separation process in the TVP5040. 10-bit composite video
is multiplied by subcarrier signals in the quadrature demodulator to generate color difference signals U and V. The
U and V are then run into low-pass filter to achieve the desired bandwidth. An adaptive 3-line comb filter separates
UV from Y based on the unique property of color phase shifts from line to line. The chroma is remodulated through
a quadrature modulator and subtracted from line-delayed composite video to generate luma. This form of Y/C
separation is completely complementary, thus there is no loss of information. However in some applications, it is
desirable to limit the U/V bandwidth to avoid crosstalk. In that case, notch filters can be turned on. To accommodate
some viewing preferences, a peaking filter is also available in the luma path. The Y/C separation is bypassed for
S-video input. Contrast, brightness, hue, and saturation are programmable via the host port.
Line
Delay
TVP5040 Y/C SEPARATION
Peaking
Quadrature
Modulation
Composite
Quadrature
Demodu-
lation
Subcarrier
Generation
Notch
Filter
Color
LPF
3-Line
Adaptive
Comb
Filter
Color
LPF
Burst
Accumulator
Notch
Filter
Notch
Filter
Notch
Filter
To
Sync Block
Delay
Contrast
Brightness
Saturation
Control
Delay
V
Y
U
UV
Y
Burst
Accumulator
Figure 2–5. Y/C Separation Block Diagram
相關(guān)PDF資料
PDF描述
TVP5040PFP COLOR SIGNAL DECODER, PQFP80
TVP5041PFP COLOR SIGNAL DECODER, PQFP80
TVP5146M1PFP COLOR SIGNAL DECODER, PQFP80
TVP5146M2IPFPR COLOR SIGNAL DECODER, PQFP80
TVP5146M2IPFP COLOR SIGNAL DECODER, PQFP80
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP5040CPFPG4 功能描述:IC NTSC/PAL VIDEO DECODER 80TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器,解碼器,轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源,模擬:- 電壓 - 電源,數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
TVP5040EVM 制造商:Texas Instruments 功能描述:EVAL BD TVP5040EVM USER S GUIDE - Bulk
TVP5145 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NTSC/PAL/SECAM/Component Digital Video Decoder With Macrovision(TM) Detection
TVP5145EVM 制造商:Texas Instruments 功能描述:TVP5145EVM - Bulk
TVP5145PFP 功能描述:視頻 IC NTSC/PAL/SECAM/ Comp Dig Vid Dec 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