Philips TDA4884 free download

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INTEGRATED CIRCUITS DATA SHEET TDA4884 Three gain control video pre-amplifier for OSD Preliminary specification File under Integrated Circuits, IC02 June 1994 Philips Semiconductors Preliminary specification Three gain control video pre-amplifier for OSD FEATURES · 85 MHz video controller · Fully DC controllable · 3 separate video channels · Input black level clamping · White level adjustment for 3 channels · Contrast control for all 3 channels simultaneously · Cathode feedback to internal reference for cut-off control, which allows unstabilized video supply voltage · Current outputs for RGB signal currents · RGB voltage outputs to external peaking circuits · Blanking and switch-off input for screen protection · Sync on green operation possible · OSD application very easily. QUICK REFERENCE DATA SYMBOL VP IP Vl(b-w) VO(b-w) supply current input voltage (black-to-white; pins 2, 5 and 8) output voltage (black-to-white; pins 19, 16 and 13) nominal contrast; pins 3, 1 and 11 open-circuit PARAMETER positive supply voltage (pin 7) CONDITIONS MIN. 7.2 - - - TYP. 8.0 48 0.7 0.79 GENERAL DESCRIPTION TDA4884 The TDA4884 is a monolithic integrated RGB amplifier for colour monitor systems with super VGA performance, intended for DC or AC coupling of the colour signals to the cathodes of the CRT. With special advantages the circuit can be used in conjunction with the TDA485x monitor deflection IC family. MAX. 8.8 - 1.0 - UNIT V mA V V IO(b-w) IM B Gnom output current (black-to-white; pins 20, 17 and 14) peak output current (pins 20, 17 and 14) bandwidth -3 dB nominal gain (pins 2, 5 and 8 to pins 19, 16 and 13) nominal contrast; pins 3, 1 and 11 open-circuit gain control for all channels (relative to Gnom) contrast control minimum contrast for OSD operating ambient temperature V6 = 1 to 6 V V6 = 0.7 V - - 70 - 50 - 85 1 - 100 - - mA mA MHz dB Gv Cv COSD Tamb -5 -22 - -20 - - -40 - +2.6 +3.4 - +70 dB dB dB °C ORDERING INFORMATION EXTENDED TYPE NUMBER TDA4884 Note 1. SOT146-1; 1996 November 22. PACKAGE PINS 20 PIN POSITION DIL MATERIAL plastic CODE SOT146(1) June 1994 2 Philips Semiconductors Preliminary specification Three gain control video pre-amplifier for OSD TDA4884 Fig.1 Block diagram and basic application circuit for DC and AC coupling. June 1994 3 Philips Semiconductors Preliminary specification Three gain control video pre-amplifier for OSD PINNING SYMBOL GC2 VI1 GC1 GND VI2 CC VP VI3 HBL CL GC3 FB3 VO3 IO3 FB2 VO2 IO2 FB1 VO1 IO1 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DESCRIPTION gain control Channel 2 signal input Channel 1 gain control Channel 1 ground signal input Channel 2 contrast control, OSD switch supply voltage signal input Channel 3 horizontal blanking, switch-off input clamping, vertical blanking, test mode gain control Channel 3 feedback Channel 3 voltage output Channel 3 current output Channel 3 feedback Channel 2 voltage output Channel 2 current output Channel 2 feedback Channel 1 voltage