TDA8145 データシートの表示（PDF） - STMicroelectronics

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TDA8145

TV EAST/WEST CORRECTION CIRCUIT FOR SQUARE TUBES

STMicroelectronics 

TDA8145

TV EAST/WEST CORRECTION CIRCUIT

FOR SQUARE TUBES

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

Figure 1. Package

POWERDIP8

(Plastic Package)

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 2. Pin Connections (top view)

KEYSTONE CORRECTION INPUT

1

FRAME SAWTOOTH CURRENT INPUT

2

CURRENT REFERENCE

3

GND

4

8

NON-INVERTING INPUT 100µA CURRENT SINK

7

PARABOLA OUTPUT INVERTING INPUT

6

+VS

5

OUTPUT

May 2004

REV. 2

1/9

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