LM1202M National Semiconductor, LM1202M Datasheet
LM1202M
Specifications of LM1202M
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LM1202M Summary of contents
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... Output stage directly drives most hybrid or discrete Y CRT amplifier stages Applications High resolution CRT monitors Video switches Video AGC amplifier Wideband amplifier with gain and DC offset control Order Number LM1202N or LM1202M RRD-B30M66 Printed December 1995 TL H 11440 – 1 ...
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... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage V Pins Ground Pins Voltage at Any Input Pin ( Video Output Current ( Package Power Dissipation (Above 25 C Derate Based and T ...
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Electrical Characteristics (Continued) Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur Note 2 Operating Ratings indicate conditions for which the device is functional but do not guarantee specific performance limits For guaranteed specifications ...
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Typical Performance Characteristics Quiescent Supply Current vs Supply Voltage Contrast vs Frequency http www national com (V 12V unless otherwise specified Attenuation vs Drive Control Voltage TL H 11440– 12 Drive vs Frequency ...
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Circuit Description Figure 2 shows a block diagram of the LM1202 video ampli- fier along with contrast and brightness (black level) control Contrast control is a DC-operated attenuator which varies the AC gain of the amplifier Signal attenuation (contrast) is ...
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Circuit Description (Continued) pin 8 produces a control voltage at pin 3 which drives the base varying the voltage at the base of Q9 Q8’s collector current ( diverted away from the load resis- C8 ...
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Circuit Description (Continued) VIDEO AMPLIFIER SECTION (Output Stage) A simplified schematic of LM1202’s video amplifier output stage is shown in Figure 4 The output stage is the second gain stage Ideally the gain of the second gain stage would be ...
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Circuit Description (Continued) http www national com 8 ...
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Circuit Description (Continued) DRIVE CONTROL SECTION A simplified schematic of the LM1202’s drive control section is shown in Figure voltage is applied at the drive control input (pin 9) Transistors Q49 Q50 and Q54 ...
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Circuit Description (Continued) http www national com 10 ...
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Circuit Description (Continued) FIGURE 7 Simplified Schematic of the LM1202 Clamp Gate Circuit 11440 – 8 http www national com ...
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Circuit Description (Continued) FIGURE 8 Simplified Schematic of the LM1202 Clamp Comparator Circuit http www national com 11440 – 9 ...
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Applications of the LM1202 SINGLE VIDEO CHANNEL A typical application for a single video channel is shown in Figure 9 The video signal is AC coupled to pin 6 The LM1202 internally biases the video signal ...
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Applications of the LM1202 FIGURE 9 Typical LM1202 Application (Single Video Channel) http www national com (Continued 11440 – 10 ...
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Applications of the LM1202 FIGURE 10 Typical RGB Application with Contrast Drive and Black Level (Cutoff) Control (Continued 11440– 11 http www national com ...
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Power Down Characteristics The LM1202 includes a built-in power down spot killer to prevent a flash on the screen upon power down The LM1202’s output voltage decreases as the device is being powered down thus preventing a flash on the ...
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... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM1202M NS Package Number M20B 17 http www national com ...
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... Floor Straight Block a Ocean Centre 5 Canton Rd 49 (0) 180-530 85 85 Tsimshatsui Kowloon a Tel 49 (0) 180-532 78 32 Hong Kong a 49 (0) 180-532 93 58 Tel (852) 2737-1600 a Tel 49 (0) 180-534 16 80 Fax (852) 2736-9960 a National Semiconductor Japan Ltd Tel 81-043-299-2308 Fax 81-043-299-2408 ...