LM1202N National Semiconductor, LM1202N Datasheet
LM1202N
Specifications of LM1202N
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LM1202N 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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... Italiano National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Order Number LM1202N NS Package Number N20A 2 A critical component is any component of a life ...