TDA8145
TV EAST/WEST CORRECTION CIRCUIT
FOR SQUARE TUBES
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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
POWERDIP8
(Th = 0.4mm)
(Plastic Package)
ORDER CODE :
TDA8145
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 correction
by driving a diode modulator in TV and monitor
applications.
PIN CONNECTIONS
(top view)
KEYSTONE CORRECTION INPUT
FRAME SAWTOOTH CURRENT INPUT
CURRENT REFERENCE
GND
1
2
3
4
8
7
6
5
NON-INVERTING INPUT 100碌A(chǔ) CURRENT SINK
PARABOLA OUTPUT INVERTING INPUT
+V
S
OUTPUT
October 1998
1/5
8145-01.EPS