Daewoo DDT-21H9ZZF, Service Manual, Page: 31 / 83

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Service Manual CP-099F
4-6 TEA5101B
The TEA5101B includes three video amplifiers designed with a high voltage DMOS/bipolar technology. It drives
directly the three CRT cathodes. The device is protected against flashovers. Due to it's three cathode current output,
the TEA5101B can be used with voth parallel and sequential sampling applications.
Features
PIN CONNECTIONS
PIN FUNCTION
- BANDWIDTH : 10MHz TYPICAL
- RISE AND FALL TIME : 50ns TYPICAL
- CRT CATHODES CURRENT OUTPUTS FOR PARALLEL OR SEQUENTIAL CUT-OFF OR DIRVE ADJUSTTMENT
- FLASHOVER PROTECTION
- POWER DISSIPATION : 3.5W
- ESD PROTECTED
BLUE FEEDBACK
BLUE CATHODE CURRENT
BLUE OUTPUT
GREEN FEEDBACK
GREEN CATHODE CURRENT
GREEN OUTPUT
RED FEEDBACK
GROUND
RED OUTPUT
RED CATHODE CURRENT
Vpp HIGH VOLTAGE
RED INPUT
GREEN INPUT
Vcc LOW VOLTAGE
BLUE INPUT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Tab connected to Pin 8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Blue Input
Vcc
Green Input
Red Input
Vpp
Red Cathode Current
Red Output
Ground
Red Feedback
Green Output
Green Cathode Current
Green Feedback
Blue Output
Blue Cathode Current
Blue Feedback
Input of the "blue" amplifier. It is a virtual ground with 3.8V bias voltage
15 microamperes input bias current with 14k input resistance.
Low voltage power supply. typically 12V.
See Pin 1.
See Pin 1.
High voltage Power supply, typically 200V.
Provides the video processor with a copy of the DC current flowing into the red
cathode, for automatic cut-off or gain adjustment, If this control is not used,
Pin 6 must be grounded.
Output driving the red cathode. Pin 7 is internally protected against CRT arc
discharges by a diode limiting the output voltage to Vpp.
Also connected to the heatsink.
Output driving the feedback resistor network for the red amplifier.
See Pin 7.
See Pin 6.
See Pin 9.
See Pin 7.
See Pin 6.
See Pin 9.
No Function Description