LM1204

The LM1204 is a triple 150 MHz video amplifier system designed specifically for high resolution RGB video display applications. There are some features as follows: (1)built-in video blanking function; (2)built-in sync separator for composite video input; (3)includes DC restoration of video signals; (4)back porch clamp pulse width user adjustable; (5)DC control of brightness, contrast, blanking level, drive and cutoff; (6)DC controls are 0V to 4V for easy interfacing to a digitally controlled system.

What comes next is the maximum ratings of LM1204: (1)supply voltage, VCC, Pins 2, 4, 6, 19, 31, 41, 44: 13.5V; (2)peak video output source current,(any one amplifier) pins 30, 35 or 39: 30mA; (3)voltage at any input pin, VIN: GNDVIN VCC;(4)maximum ±H sync input voltage: 5.5VPP; (5)power dissipation, PD (above 25 derate based on JA and TJ): 2.4W; (6)thermal resistance,JA: 52/W; (7)junction temperature, TJ: 150; (8)ESD susceptibility: 2.5 kV; (9)storage temperature: -65to150; (10)lead temperature, vapor phase (60 seconds): 215,infrared (15 seconds): 220.

The following is the electrical characteristics of LM1204: (1)supply current: 100mA typical and 125mA max at no video or sync input signals, S1 = A; (2)input bias current(pin 9, 13, 15, 20, 21 or 22): 0.3A typical and 2A max at S1 = A; (3)blank gate input high current: 0.01A typical and 2A max at V24 = 4V; (4)blank gate input low current: 2A typical and 5A max at V24 = 0V; (5)feedback input current(Pin 28, 33 or 38):150nA typical; (6)blank cap charge current:185A typical and 75A min at V32,37,42 = 0V; (7)blank cap discharge current: -185A typical and -75A min at V32,37,42 = 5V.