TDA8145 datasheet(1/9 Pages) STMICROELECTRONICS

Teilenummer	TDA8145

Bauteilbeschribung	TV EAST/WEST CORRECTION CIRCUIT FOR SQUARE TUBES

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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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