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LM1279 データシート(PDF) 4 Page - Texas Instruments |
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LM1279 データシート(HTML) 4 Page - Texas Instruments |
4 / 20 page OBSOLETE LM1279 SNOS020B – SEPTEMBER 1998 – REVISED APRIL 2013 www.ti.com DC ELECTRICAL CHARACTERISTICS TA = 25°C; VCC1 = VCC2 = 8V; V10 = 4V; VDrive = 4V; V11 = 7V; VOSD = 0V; RL = 390Ω unless otherwise stated. Symbol Parameter Condition Typical(1) Limit(2) Units IS Supply Current ICC1 + ICC2 − ILoad (3) 80 90 mA(max) V3, 5, 8 Video Amplifier Input Bias Voltage 2.5 V RIN Video Input Resistance Any One Amplifier 20 k Ω V11off Sandcastle Off Voltage 1.4 1.2 V (max) V11blank Sandcastle Blank Voltage Start of Blank Region 1.4 1.7 V (min) V11blank Sandcastle Blank Voltage End of Blank Region 2.8 3.2 V (max) V11clamp & Blank Sandcastle Clamp and Blank On Voltage Start of Clamp and Blank Region 3.2 3.6 V (min) V11clamp & Blank Sandcastle Clamp and Blank On Voltage End of Clamp and Blank Region 6.2 5.8 V (max) V11clamp Sandcastle Clamp On/Blank Off Voltage Clamp Only Region, Max = VCC 6.2 6.5 V (min) I11off Sandcastle Off Current V11 = 0V −5.0 −8.0 µA(max) I11test Sandcastle Clamp On/Blank Off Curr V11 = 6.5V −100 −500 nA(max) Iclamp Clamp Cap Charge Current Clamp Comparators On ±750 ±500 µA(min) Ibias Clamp Cap Bias Discharge Current Clamp Comparators Off 50 200 nA (max) VOL Video Black Level VVideo in = 0V, V11 = 6.5V 1.35 1.55 V (max) ΔVOL Video ΔBlack Level Output Voltage(4) Between Any Two Amplifiers ±50 ±200 mV (max) VOH Video Output High Voltage V11 < 1.2V 5.0 4.6 V (min) I10, 12, 14, 17 Contrast/Drive Control Input Current VContrast = VDrive = 0V to 4V −0.25 −1.5 µA (max) I1l, 19l, 20l OSD Low Input Current (each) VOSD in = 0V −2.5 −10.0 µA(max) I1h, 19h, 20h OSD High Input Current (each) VOSD in = 5V 100 130 µA(max) VOL(Blank) Video Output during Blanking V11 = 1.7V 0.1 0.5 V (max) (1) Typical specifications are specified at +25°C and represent the most likely parametric norm. (2) Tested limits are specified to TI's AOQL (Average Outgoing Quality Level). (3) The supply current specified is the current for VCC1 and VCC2 minus the current through RL (Isupply = ICC1 + ICC2 − IL). The supply current for VCC2 (pin 16) does depend on the output load. With video output at 1V DC, the additional current through VCC2 is 7.7 mA with RL = 390 Ω. (4) Output voltage is dependent on load resistor. Test circuit uses RL = 390Ω. 4 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: LM1279 |
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