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TDA8145 Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA8145 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 9 page 1/9 May 2004 TDA8145 TV EAST/WEST CORRECTION CIRCUIT FOR SQUARE TUBES REV. 2 FEATURES SUMMARY ■ LOW DISSIPATION ■ SQUARE GENERATOR FOR PARABOLIC CURRENT SPECIALLY DESIGNED FOR SQUARE C.R.T. CORRECTION ■ EXTERNAL KEYSTONE ADJUSTMENT (symmetry of the parabola) ■ INPUT FOR DYNAMIC FIELD CORRECTION (beam current change) ■ STATIC PICTURE WIDTH ADJUSTMENT ■ PULSE-WIDTH MODULATOR ■ FINAL STAGE D-CLASS WITH ENERGY REDELIVERY ■ PARASITIC PARABOLA SUPPRESSION, DURING FLYBACK TIME OF THE VERTICAL SAWTOOTH DESCRIPTION The TDA8145 is a monolithic integrated circuit in a 8 pin minidip plastic package designed for use in the square C.R.T. east-west pin-cushion correc- tion by driving a diode modulator in TV and moni- tor applications. Figure 1. Package Figure 2. Pin Connections (top view) POWERDIP8 (Plastic Package) 1 2 3 4 8 7 6 5 KEYSTONE CORRECTION INPUT FRAME SAWTOOTH CURRENT INPUT CURRENT REFERENCE GND NON-INVERTING INPUT 100µA CURRENT SINK PARABOLA OUTPUT INVERTING INPUT OUTPUT +VS |
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