TDA4950 Datasheet, PDF (1/5 Pages) STMicroelectronics – TV EAST/WEST CORRECTION CIRCUIT

TDA4950
TV EAST/WEST CORRECTION CIRCUIT
. _{LOW DISSIPATION}
. _{SQUARE GENERATOR FOR PARABOLIC}
CURRENT
. EXTERNAL KEYSTONE ADJUSTMENT (sym-
metry of the parabola)
. INPUT FOR DYNAMIC FIELD CORRECTION
(beam current change)
. _{STATIC PICTURE WIDTH ADJUSTMENT}
. _{PULSE-WIDTH MODULATOR}
. _{FINAL STAGE D-CLASS WITH ENERGY RE-}
DELIVERY
. PARASITIC PARABOLA SUPPRESSION,
DURING FLYBACK TIME OF THE VERTICAL
SAWTOOTH
POWERDIP8 (Th = 0.4mm)
(Plastic Package)
ORDER CODE : TDA4950
DESCRIPTION
The TDA4950 is a monolithic integrated circuit in a
8 pin minidip plastic package designed for use in
the east-west pin-cushion correction by driving a
diode modulator in TV and monitor applications.
PIN CONNECTIONS
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
+V_S
5
OUTPUT
October 1998
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