參數(shù)資料
型號(hào)： 935233410518
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO24
封裝： PLASTIC, SOT-137, SO-24
文件頁(yè)數(shù)： 31/39頁(yè)
文件大?。?/td> 302K
代理商： 935233410518
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TDA9178
Information as of 2000-08-23
TDA9178; YUV one chip picture improvement based on luminance vector-, colour vector- and spectral processor
The TDA9178 is a transparent analog video processor with YUV input and output interfaces. It offers three main functions: luminance
vector processing, colour vector processing and spectral processing. Beside these three main functions, there are some additional
functions.
In the luminance vector processor, the luminance transfer function is controlled in a non-linear way by the distribution, in 5 discrete
histogram sections, of the luminance values measured in a picture. As a result, the contrast ratio of the most important parts of the scene
will be improved. Black restoration is available in the event of a set-up in the luminance signal.
A variable gamma function, after the histogram conversion, offers the possibilities of alternative brightness control or factory adjustment of
the picture tube.
The adaptive black stretch function of the TDA9178 offers the possibility of having a larger ‘weight’ for the black parts of the video signal;
the white stretch function offers an additional overall gain for increased light production.
To maintain a proper colour reproduction, the saturation of the U- and V-colour difference signals is also controlled as a function of the
actual non-linearity in the luminance channel.
In the colour vector processor, the dynamic skin tone correction locally changes the hue of colours that match skin tones to the correct hue.
The green enhancement circuit activates medium saturated green towards to more saturated green. The blue stretch circuit can be
activated which shifts colours near white towards blue.
The spectral processor provides 1D luminance transient improvement, luminance detail enhancement by smart peaking and a 1 D colour
transient improvement. The TDA9178 can be used as a cost effective alternative to (but also in combination with) scan velocity modulation.
In the spectral processor line width control (or aperture control) can be user defined. The TDA9178 is capable of adjusting the amount of
coring according to the video level with the video dependent coring. The TDA9178 is also capable to give extra sharpness in the cases of
saturated red and magenta parts of the screen using the colour dependent sharpness feature.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
9352370001 功能描述:HEAT SHRINK SLEEVE RoHS:是 類(lèi)別:線纜，導(dǎo)線 - 管理 >> 標(biāo)簽，標(biāo)記 系列:HT-SCE 標(biāo)準(zhǔn)包裝:250 系列:CM-SCE 標(biāo)簽類(lèi)型:標(biāo)準(zhǔn) 標(biāo)簽尺寸:2.00" x 0.25"（50.8mm x 6.4mm） 顏色:白 材質(zhì):聚烯烴 適用于相關(guān)產(chǎn)品:點(diǎn)陣打印機(jī) 包裝:* 工作溫度:-55°C ~ 135°C 其它名稱(chēng):A105291CM-SCE-TP-1/4-4H-9
935241-0001 制造商: 功能描述: 制造商:DIGITRAN 功能描述: 制造商:undefined 功能描述:
935241-1 制造商:DIGITRAN 功能描述: 制造商:DTRAN 功能描述:
935245650125 制造商:NXP Semiconductors 功能描述:Inverter 1-Element CMOS 5-Pin TSSOP T/R
935248-90 制造商:JANCO 功能描述:935248-90
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