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
- 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
PIN CONNECTIONS
15BLUE FEEDBACK
14BLUE CATHODE CURRENT
13BLUE OUTPUT
12GREEN FEEDBACK
11GREEN CATHODE CURRENT
10GREEN OUTPUT
9RED FEEDBACK
8GROUND
7RED OUTPUT
6RED CATHODE CURRENT
5Vpp HIGH VOLTAGE
4RED INPUT
3GREEN INPUT
2Vcc LOW VOLTAGE
1BLUE INPUT
Tab connected to Pin 8
PIN FUNCTION
NoFunctionDescription
1Blue InputInput of the "blue" amplifier. It is a virtual ground with 3.8V bias voltage
15 microamperes input bias current with 14k input resistance.
2VccLow voltage power supply. typically 12V.
3Green InputSee Pin 1.
4Red InputSee Pin 1.
5VppHigh voltage Power supply, typically 200V.
6Red Cathode CurrentProvides 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.
7Red OutputOutput driving the red cathode. Pin 7 is internally protected against CRT arc
discharges by a diode limiting the output voltage to Vpp.
8GroundAlso connected to the heatsink.
9Red FeedbackOutput driving the feedback resistor network for the red amplifier.
10Green OutputSee Pin 7.
11Green Cathode CurrentSee Pin 6.
12Green FeedbackSee Pin 9.
13Blue OutputSee Pin 7.
14Blue Cathode CurrentSee Pin 6.
15Blue FeedbackSee Pin 9.
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ACEC
DAEWOO
