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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TDA9178 датащи(PDF) 17 Page - NXP Semiconductors |
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TDA9178 датащи(HTML) 17 Page - NXP Semiconductors |
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17 / 36 page  1999 Sep 24 17 Philips Semiconductors Preliminary specification YUV one chip picture improvement based on luminance vector-, colour vector- and spectral processor TDA9178 Colour vector processing SKIN TONE; note 1 and Fig.4 ϕcor correction angle ASK = 0; DSK = 1 − 123 − deg ASK = 1; DSK = 1 − 117 − deg ϕ ap correction range (or aperture angle) DSK = 1; SSK = 1; WSK = 0 − 45 − deg GREEN ENHANCEMENT; note 1 and Fig.5 ϕcor correction angle DGR = 1 − 208 − deg ϕ ap correction range (or aperture angle) DGR = 1; SGR = 0; WGR = 0 − 45 − deg BLUE STRETCH; note 2 and Fig.6 ϕ(str) stretch angle DBL = 1 − 330 − deg Spectral processing GENERAL Qmax maximum contour amplitude at centre frequency note 3 − 12 − dB Contour filter low frequency peaking fpc(l) peaking centre frequency 1fH mode; CFS = 0 − 2.0 − MHz 2fH mode; CFS = 0 − 4.0 − MHz Contour filter high frequency peaking fpc(h) peaking centre frequency 1fH mode; CFS = 1 − 3.0 − MHz 2fH mode; CFS = 1 − 6.0 − MHz Step detector fdc detection centre frequency 1fH mode − 1.18 − MHz 2fH mode − 2.36 − MHz PEAKING GPK peaking control curve 63 steps − 0 to 100 − % CORING GCR coring control curve 63 steps − 0to45 − % LUMINANCE TRANSIENT IMPROVEMENT tr(min) minimum rise time 10% to 90% note 4 − 30 − ns GSP steepness control curve 63 steps − 0 to 100 − % Line width control tsd(max) maximum step displacement 1fH mode − 140 − ns 2fH mode − 70 − ns GLW line width control curve (duty factor) 63 steps at 1 MHz sine wave at 1fH − 33 to 67 − % SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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