Philips TDA4850 free download

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INTEGRATED CIRCUITS DATA SHEET TDA4850 Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors Product specification Supersedes data of September 1991 File under Integrated Circuits, IC02 1997 Jun 05 Philips Semiconductors Product specification Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors FEATURES · VGA operation fully implemented including alignment-free vertical and E/W amplitude pre-settings · 4th VGA mode easy applicable (XGA, Super VGA) · Multi-frequency operation externally selectable · All adjustments DC-controllable · Alignment-free oscillators · Sync separators for video or horizontal and vertical TTL sync levels regardless of polarity · Horizontal oscillator with PLL1 for sync and PLL2 for flyback · Constant vertical and E/W amplitude in multi-frequency operation · DC-coupling to vertical power amplifier (TDA486X or TDA8351) · Internal supply voltage stabilization with excellent ripple rejection to ensure stable geometrical adjustments. QUICK REFERENCE DATA SYMBOL VP IP Vi sync supply voltage (pin 1) supply current PARAMETER - MIN. 9.2 TYP. 12 40 1 120 - 1.4 - 1.4 1 - - - - - - 1.6 - 1.6 - 60 70 GENERAL DESCRIPTION TDA4850 The TDA4850 provides economical solutions in VGA/XGA and multi-frequency monitors. The IC incorporates the complete horizontal and vertical small signal processing. VGA-dependent mode detection and settings are performed on chip. In conjunction with TDA486X or TDA8351 (vertical output circuits) both ICs offer an extremely advanced system solution. MAX. 16 V UNIT mA V mV V V V V mA mA °C AC-coupled composite video signal with negative-going sync - (peak-to-peak value; pin 9) sync slicing level DC-coupled TTL-compatible horizontal sync signal (peak value; pin 9) slicing level DC-coupled TTL-compatible vertical sync signal (peak value; pin 10) slicing level - 1.7 1.2 1.7 1.2 - - 0 Io V Io H Tamb vertical differential output current (peak-to-peak value; pins 5 and 6) horizontal sink output current on pin 3 operating ambient temperature ORDERING INFORMATION TYPE NUMBER TDA4850 PACKAGE NAME DIP20 DESCRIPTION plastic dual in-line package; 20 leads (300 mil) VERSION SOT146-1 1997 Jun 05 2 handbook, full pagewidth 1997 Jun 05 clamping/ blanking pulse vertical amplitude differential vertical output RVOS 8 E/W drive 15 16 12 13 5 6 CVOS CVA AUTOMATIC POLARITY CORRECTION PARABOLA ADJUSTMENT AND OUTPUT 11 14 VERTICAL SYNC INTEGRATOR VERTICAL OSCILLATOR AMPLITUDE CONTROL VERTICAL AMPLITUDE ADJUSTMENT AND OUTPUT parabola amplitude V supply 1 VP (9.2 to 16 V) +VB 4 BLOCK DIAGRAM Philips Semiconductors vertical sync (TTL level) 10 VERTICAL SYNC SEPARATOR + Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors 3 TDA4850 H supply AUTOMATIC POLARITY CORRECTION PLL1 HORIZONTAL OSCILLATOR 17 18 19 CHOS RHOS horizontal flyback PLL2 2 20 4th mode 7 VGA MODE DETECTOR AND OUTPUT VGA/MULTIFREQUENCY SWITCH H+V C