TDA1675A

TDA1675A VERTICAL DEFLECTION CIRCUIT . . . . . . . . . SYNCHRONISATION CIRCUIT ESD PROTECTED PRECISION OSCILLATOR AND RAMP GENERATOR POWER OUTPUT AMPLIFIER WITH HIGH CURRENT CAPABILITY FLYBACK GENERATOR VOLTAGE REGULATOR PRECISION BLANKING PULSE GENERATOR THERMAL SHUT DOWN PROTECTION CRT SCREEN PROTECTION CIRCUIT WHICH BLANKS THE BEAM CURRENT IN THE EVENT OF LOSS OF VERTICAL DEFLECTION CURRENT MULTIWATT 15 (Plastic Package) ORDER CODE : TDA1675A DESCRIPTION The TDA1675A is a monolithic integrated circuit in 15-lead Multiwatt® package. It is a full performance and very efficient vertical deflection circuit intended for direct drive of the yoke of 110o colour TV picture tubes. It offers a wide range of applications also in portable CTVs, B&W TVs, monitors and displays. PIN CONNECTIONS (top view) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 FLYBACK SUPPLY BLANKING OUTPUT AMPLIFIER INPUT (-) AMPLIFIER INPUT (+) RAMP OUTPUT RAMP GENERATOR GROUND HEIGHT ADJUSTMENT OSCILLATOR SYNC. INPUT OSCILLATOR OSCILLATOR AMPLIFIER SUPPLY AMPLIFIER OUTPUT 1675A-01.EPS Tab connected to Pin 8 September 1993 1/11 TDA1675A BLOCK DIAGRAM + +V S BLANKING OUT 13 14 2 + C f BLANK GENERATOR AND CRT PROTECTION 6 VOLTAGE REGULATOR FLYBACK GENERATOR 15 11 Ro 4 Co 3 OSCILLATOR RAMP GENERATOR R3 + CLOCK PULSE POWER AMP. - 1 Ly Ry Iy YOKE R1 R2 12 Re 7 SYNC. SYNC. BUFFER STAGE THERMAL PROTECTION Ra 7 9 10 8 Rb Rc + + Ca Cc LIN 1675A-02.EPS HEIGHT Rd Cb Rf ABSOLUTE MAXIMUM ...