Daewoo DTZ-2881/28W8 Manuel D’Utilisation

CP-520/520A/520F Service Manual 

 

DTV R&D Europe

 

27

 

4.3  TDA8358J VERTICAL AMPLIFIER 

 
The TDA8358J are power circuit for use in 90° and 110° colour deflection systems for field 
frequencies of 25 to 200Hz field frequencies, and for 4:3 and 16/9 picture tubes. The IC contains 
a vertical deflection output circuit, operating as a high efficiency class G system. The full bridge 
output circuit allows DC coupling of the deflection coil in combination with single positive supply  
voltages. 
 
The east-west output stage is able to supply the sink current for a diode modulator circuit.  
 
The IC is constructed in a Low Voltage DMOS(LVDMOS) process that combines bipolar, CMOS 
and DMOS devices. DMOS transistors are used in the output stage because of the absence of 
second breakdown. 
 

 
Features : 
 
§ Few external components 
§ Highly efficient fully DC-coupled vertical bridge output circuit 
§ Vertical flyback switch with short rise and fal times 
§ Built-in guard circuit 
§ Thermal protection circuit 
§ Improved EMC performance due to differential inputs 
§ East-west output stage