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LM1276AAA データシート(PDF) 5 Page - National Semiconductor (TI) |
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LM1276AAA データシート(HTML) 5 Page - National Semiconductor (TI) |
5 / 50 page Video Signal Electrical Characteristics (Continued) Unless otherwise noted: T A = 25˚C, VCC = +5.0V, VIN = 0.70 VP-P,VABL =VCC,CL = 8 pF, Video Outputs = 2.0 VP-P. Setting numbers refer to the definitions in Table 1. See (Note 7) for Min and Max parameters and (Note 6) for Typicals. Symbol Parameter Conditions Min Typ Max Units A V G-50% Gain Attenuation @ 50% Test Setting 6, AC input signal. −4.0 dB A V G-Min Maximum Gain Attenuation Test Setting 7, AC input signal. −11 dB A V Match Maximum Gain Match between Channels Test Setting 3, AC input signal. ±0.5 dB A V Track Gain Change between Channels Tracking when changing from Test Setting 8 to Test Setting 5. See (Note 11). ±0.5 dB Vid Threshold Video Threshold Normal Operation 80 mV V ABL TH ABL Control Range Upper Limit (Note 12), Test Setting 4, AC input signal. 4.8 V V ABL Range ABL Gain Reduction Range (Note 12), Test Setting 4, AC input signal. 2.8 V A V 3.5/AV Max ABL Gain Reduction at 3.5V (Note 12), Test Setting 4, AC input signal. V ABL = 3.5V −2 dB A V 2.0/AV Max ABL Gain Reduction at 2.0V (Note 12), Test Setting 4, AC input signal. V ABL = 2.0V −12 dB I ABL Max ABL Input Current Sink Capability (Note 12), Test Setting 4, AC input signal. 2.5 mA V ABL Max Maximum ABL Input Voltage during Clamping (Note 12), Test Setting 4, AC input signal. I ABL =IABL MAX V CC + 0.1 V A V ABL Track ABL Gain Tracking Error (Note 9), Test Setting 4, 0.7 V P-P input signal, ABL voltage set to 4.5V and 2.5V. 5.0 % R IP Minimum Input Resistance (pins 5, 6, 7) Test Setting 4. 20 M Ω OSD Electrical Characteristics Unless otherwise noted: T A = 25˚C, VCC = +5.0V. See (Note 7) for Min and Max parameters and (Note 6) for Typicals. Symbol Parameter Conditions Min Typ Max Units V OSDHIGH max Maximum OSD Level with OSD Contrast 111 Palette Set at 111, OSD Contrast = 111, Test Setting 3 3.02 V V OSDHIGH 110 Maximum OSD Level with OSD Contrast 110 Palette Set at 111, OSD Contrast = 110, Test Setting 3 2.91 V V OSDHIGH 101 Maximum OSD Level with OSD Contrast 101 Palette Set at 111, OSD Contrast = 01, Test Setting 3 2.79 V V OSDHIGH 100 Maximum OSD Level with OSD Contrast 100 Palette Set at 111, OSD Contrast = 100, Test Setting 3 2.67 V V OSDHIGH 011 Maximum OSD Level with OSD Contrast 011 Palette Set at 111, OSD Contrast = 011, Test Setting 3 2.55 V V OSDHIGH 010 Maximum OSD Level with OSD Contrast 010 Palette Set at 111, OSD Contrast = 010, Test Setting 3 2.43 V V OSDHIGH 001 Maximum OSD Level with OSD Contrast 001 Palette Set at 111, OSD Contrast = 001, Test Setting 3 2.32 V V OSDHIGH 000 Maximum OSD Level with OSD Contrast 000 Palette Set at 111, OSD Contrast = 000, Test Setting 3 2.20 V ∆V OSD (Black) Difference between OSD Black Level and Video Black Level (same channel) Register 0x8438=0x18, Input Video = Black, Same Channel, Test Setting 8 ±130 mV www.national.com 5 |
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