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LM1238 Folha de dados(PDF) 3 Page - National Semiconductor (TI) |
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LM1238 Folha de dados(HTML) 3 Page - National Semiconductor (TI) |
3 / 24 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 Track Gain Change between channels Tracking when changing from Test Setting 8 to Test Setting 5. See Note 11. ±0.5 dB 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 3.25/AV Max ABL Gain Reduction at 3.25V Note 12, Test Setting 4, AC input signal. V ABL = 3.25V −3 dB I ABL Active ABL Input bias current during ABL Note 12, Test Setting 4, AC input signal. V ABL =VABL MIN GAIN 10 µA I ABL Max ABL input current sink capability Note 12, Test Setting 4, AC input signal. 1.0 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 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 11 Palette Set at 111, OSD Contrast = 11, Test Setting 3 4.3 V V OSDHIGH 10 Maximum OSD Level with OSD Contrast 10 Palette Set at 111, OSD Contrast = 10, Test Setting 3 3.8 V V OSDHIGH 01 Maximum OSD Level with OSD Contrast 01 Palette Set at 111, OSD Contrast = 01, Test Setting 3 3.0 V V OSDHIGH 00 Maximum OSD Level with OSD Contrast 00 Palette Set at 111, OSD Contrast = 00, Test Setting 3 2.3 V ∆V OSD (Black) Difference between OSD Black Level and Video Black Level (same channel) Register 08=0x18, Input Video = Black, Same Channel, Test Setting 8 20 mV ∆V OSD (White) Output Match between Channels Palette Set at 111, OSD Contrast = 11, Maximum difference between R, G and B 5% V OSD-out (Track) Output Variation between Channels OSD contrast varied from max to min 5% DAC Output Electrical Characteristics Unless otherwise noted: T A = 25˚C, VCC = +5.0V, VIN = 0.7V, VABL =VCC,CL = 8 pF, Video Outputs = 2.0 VP-P. See Note 7 for Min and Max parameters and Note 6 for Typicals. DAC parameters apply to all 4 DACs. Symbol Parameter Conditions Min Typ Max Units V Min DAC Min output voltage of DAC Register Value = 0x00 0.5 0.7 V V Max DAC Mode 00 Max output voltage of DAC Register Value = 0xFF, DCF[1:0] = 00b 3.5 4.2 V V Max DAC Mode 01 Max output voltage of DAC in DCF mode 01 Register Value = 0xFF, DCF[1:0] = 01b 1.85 2.35 V ∆V Max DAC (Temp) Variation in voltage of DAC with temperature 0 < T < 70˚C ambient ±0.5 mV/˚C www.national.com 3 |
Nº de peça semelhante - LM1238 |
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Descrição semelhante - LM1238 |
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