TDA8145_04 STMICROELECTRONICS [STMicroelectronics], TDA8145_04 Datasheet

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TDA8145_04

Manufacturer Part Number
TDA8145_04
Description
TV EAST/WEST CORRECTION CIRCUIT FOR SQUARE TUBES
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
FEATURES SUMMARY
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)
May 2004
FRAME SAWTOOTH CURRENT INPUT
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
KEYSTONE CORRECTION INPUT
CURRENT REFERENCE
GND
TV EAST/WEST CORRECTION CIRCUIT
1
2
3
4
Figure 1. Package
8
7
6
5
NON-INVERTING INPUT 100µA CURRENT SINK
PARABOLA OUTPUT INVERTING INPUT
+V
OUTPUT
S
FOR SQUARE TUBES
(Plastic Package)
POWERDIP8
TDA8145
REV. 2
1/9

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TDA8145_04 Summary of contents

Page 1

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 ...

Page 2

TDA8145 Figure 3. Schematic Diagram TDA8145 CURRENT LIMITER Q1 Q13 OP1 FULL-WAVE RECTIFIER Table 1. Absolute Maximum Ratings ...

Page 3

Table 3. ELECTRICAL CHARACTERISTICS (T = 25° 26V and S2 in "a" position, refer to the test circuit unless otherwise amb S fr specified) Symbol Parameter V Supply Voltage S I Supply Current S ...

Page 4

TDA8145 Figure 5. Parabola Characteristics V 7E 4 µ ...

Page 5

Figure 6. Application Circuit with Keystone Correction Pin 1 Voltage CIRCUIT OPERATION (see the shematic diagram) A differential amplifier OP1 is driven by a vertical frequency sawtooth current of ± 33µA which is produced via an external resistor fromthe saw- ...

Page 6

TDA8145 PART NUMBERING Table 4. Order Codes Part Number TDA8145 6/9 Package POWERDIP8 Temperature Range °C ...

Page 7

PACKAGE MECHANICAL Table 5. POWERDIP8 - Mechanical Data Symbol Min A a1 0.7 B 1. 0.44 Figure 7. POWERDIP8 - Package Dimensions Note: Drawing is not ...

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TDA8145 REVISION HISTORY Table 6. Revision History Date Revision October -1998 1 14-May-2004 2 8/9 Description of Changes First Issue Stylesheet update. No content change. ...

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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. ...

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