25
Pinning
4. TDA8357J Vertical Amplifier
The TDA8357J is a power circuit for use in 90° TV systems for field frequencies of 25 to 200Hz and 16/9 picture tubes. The cir-
cuit provides a DC driven vertical deflection output circuit, operating as a highly efficient class G system. Due to the full bridge
output circuit the deflection coils can be DC coupled.
The IC is constructed in a Low Voltage DMOS process that combines Bipolar, CMOS and DMOS devices. MOS transistors are
used in the output stage because of the absence of second breakdown.
Features :
- Few external components
- Highly efficient fully DC-coupled vertical output bridge circuit
- Short rise and fall time of the vertical flyback switch
- Guard circuit
- Temperature (thermal) protection
- High EMC because of common mode inputs
Symbol
Pin
Description
Vcc
1
Supply voltage
OUT
2
Audio output
SVR
3
Supply Voltage Rejection
IN
4
Audio input
n.c.
5
Not Connected
S-GND
6
Signal ground
n.c.
7
Not Connected
n.c.
8
Not Connected
P-GND
9
P Ground
P-GND
10
P Ground
P-GND
11
P Ground
P-GND
12
P Ground
P-GND
13
P Ground
P-GND
14
P Ground
P-GND
15
P Ground
P-GND
16
P Ground
IC DESCRIPTION
APPENDIX
Summary of Contents for DTA - 14C4TFF
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Page 38: ...19 IC DESCRIPTION APPENDIX...
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