Philips TDA4882 free download

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INTEGRATED CIRCUITS DATA SHEET TDA4882 Advanced monitor video controller for OSD Preliminary specification File under Integrated Circuits, IC02 December 1994 Philips Semiconductors Philips Semiconductors Preliminary specification Advanced monitor video controller for OSD FEATURES · 85 MHz video controller · Fully DC controllable · 3 separate video channels · Input black level clamping · White level adjustment for 2 channels only · Brightness control with correct grey scale tracking · Contrast control for all 3 channels simultaneously QUICK REFERENCE DATA SYMBOL VP IP VI(b-w) VO(b-w) IO(b-w) IOM B Gnom G Cc COSD Vbl PARAMETER positive supply voltage (pin 7) supply current input voltage (black-to-white; pins 2, 5 and 8) output voltage (black-to-white; pins 19, 16 and 13) output current (black-to-white; pins 20, 17 and 14) peak output current (pins 20, 17 and 14) bandwidth nominal gain (pins 2, 5 and 8 to pins 19, 16 and 13) gain control difference for 2 channels contrast control minimum contrast for OSD brightness control related to nominal output signal amplitude operating ambient temperature -3 dB nominal contrast; pins 3 and 11 open-circuit relative to Gnom V6 = 1 to 6 V V6 = 0.7 V nominal contrast; pins 3 and 11 open-circuit CONDITIONS - - - - - 70 - -5 -22 - -11 MIN. 7.2 TYP. 8.0 48 0.7 0.79 50 - 85 1 - - -40 - - · 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. TDA4882 GENERAL DESCRIPTION The TDA4882 is an 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 - - 100 - - +2.6 +3.4 - +34 V UNIT mA V V mA mA MHz dB dB dB dB % Tamb -20 - +70 °C ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA4882 DIP20 DESCRIPTION plastic dual in-line package; 20 leads (300 mil) VERSION SOT146-1 December 1994 2 Philips Semiconductors Preliminary specification Advanced monitor video controller for OSD BLOCK DIAGRAM TDA4882 VP = 8 V 6.2 V handbook, full pagewidth VP 1 10 k brightness control signal input current output VOLTAGE CONVERTER TDA4882 1.5 k VCRT = 90 V 22 nF 2 10 M 19 CLAMP CLIPPING 20 BAV21 BFQ235 75 voltage output 33 33 220 68 k 8V VP 3 10 k gain control 25 MHz VOLTAGE CONVERTER Channel 1 15 k 18 feedback 6.8 k 10 k cut-off control 1.5 k 4 BFQ236 signal input 17 5 10 M 16 voltage output 33 33 CLAMP CLIPPING current output BFQ235 10 1 k VCRT = 90 V BAV21 22 nF 40 MHz 220 CRT 75 10 68 k 8V 10 k cut-off control REF GAIN VP 6 10 k contrast control VOLTAGE CONVERTER Channel 2 15 15 k BFQ256 feedback 860 VCRT = 65 V 6