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LM1253AN Arkusz danych(PDF) 6 Page - National Semiconductor (TI) |
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LM1253AN Arkusz danych(HTML) 6 Page - National Semiconductor (TI) |
6 / 57 page Brightness/Bias Signal Electrical Characteristics (See Figure 3 for Test Circuit, and Table 1 for Control Test Settings Chart) Unless otherwise noted: V CC = +5V, VIN = 0.7V, CL = 8 pF, Video Signal Output = 1 VPP,TA = 25˚C, VABL =VCC. Symbol Parameter Conditions LM1253A Units Min Typ Max V BLANK MAX Maximum Blanking Level Test Setting 1 V REF − 0.90 V V BLANK MIN Minimum Blanking Level Test Setting 4 V REF V t BLK r Blanking Rise Time Test Setting 1, 10% to 90%, 10 ns t BLK f Blanking Fall Time Test Setting 1, 90% to 10%, 10 ns OS BLK MAX Maximum Rise or Fall Edge Overshoot Test Setting 1, 10% to 90% or 90% to 10%, Settling Time Must be Less Than 50 ns 20 % OSD Electrical Characteristics (See Figure 3 for Test Circuit) Unless otherwise noted: V CC = +5V, VIN = 0.7V, CL = 8 pF, Video Signal Output = 1 VPP,TA = 25˚C, VABL =VCC. Symbol Parameter Conditions LM1253A Units Min Typ Max V OSDHIGH MAX Maximum OSD Level with OSD Contrast 11 Palette Set at 111. OSD Contrast Level 11, Test Setting 3 V REF + 0.95 V V OSDHIGH 10 Maximum OSD Level with OSD Contrast 10 Palette Set at 111. OSD Contrast Level 10, Test Setting 3 V REF + 0.77 V V OSDHIGH 01 Maximum OSD Level with OSD Contrast 01 Palette Set at 111. OSD Contrast Level 01, Test Setting 3 V REF + 0.59 V V OSDHIGH 00 Maximum OSD Level with OSD Contrast 00 Palette Set at 111. OSD Contrast Level 00, Test Setting 3 V REF + 0.41 V External Interface Signals Electrical Characteristics (See Figure 3 for Test Circuit) Unless otherwise noted: V CC = +5V, VIN = 0.7V, CL = 8 pF, Video Signal Output = 1 VPP,TA = 25˚C, VABL =VCC. Symbol Parameter Conditions LM1253A Units Min Typ Max I IN−MAX Maximum normal forward scan current at lowest horizontal frequency that input can withstand −150 µA V HBLANK TRIG Voltage on H Flyback (Pin 14) which will Trigger an HBLANK Signal 100V H Flyback Signal through a 100 k Ω Resistor 0.8 V I IN+MAX Maximum flyback scan current at 125 kHz that input can withstand 1.5 mA t min hflb Minimum Flyback Width 1 µs t H Horizontal Period 20 125 kHz t PW CLAMP Minimum Clamp Pulse Width 200 ns V CLAMP L MAX Maximum Low Level Clamp Pulse Voltage 1 V V CLAMP H MIN Minimum High Level Clamp Pulse Voltage 3 V V VBLANK HIGH Minimum High Level of Vertical Blank Output V VREF BLANK < 0.75V V REF +1 V V VBLANK LOW Maximum Low Level of Vertical Blank Output I VBLANK OUT = 100 µA V REF −1 V www.national.com 6 |
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