NTE7138

NTE7138 Integrated Circuit Advanced Monitor Video Controller for OSD Description: The NTE7138 is an RGB pre–amplifier in a 20–Lead DIP type package designed for color monitor systems with super VGA performance. It is intended for DC or AC coupling of the color signals to the cathodes of a CRT. Features: D 85MHz Video Controller D Fully DC Controllable D 3 Separate Video Channels D Input Black Level Clamping D White Level Adjustment for 2 Channels Only D Brightness Control with Correct Grey Scale Tracking D Contrast Control for All 3 Channels Simultaneously D Cathode Feedback to Internal Reference for Cut–Off Control, Which Allows Unstabilized Video Supply Voltage D Current Outputs for RGB Signal Currents D RGB Voltage Outputs to External Peaking Circuits D Blanking and Switch–Off Input for Screen Protection D Sync On Green Operation Possible D On Screen Display (OSD) Facility Absolute Maximum Ratings: Supply Voltage (Pin7), VP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +8.8V Input Voltage Range (Pin2, Pin5, Pin8), Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP External DC Voltage Ranges, Vext Pin20, Pin17, Pin14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to VP Pin12, Pin15, Pin18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.1 to +0.7V Pin1, Pin3...