Daewoo DTR-14D3VG, Service Manual

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21
TDA6106Q ( Video Output Amplifier )
(1) General Description
The TDA6106Q is a monolithic video output amplifier (5MHz bandwidth) in a SIL 9 MPpackage, using high-voltage
DMOS technology, and is intended to drive the cathode of CRT directly .
To obtain maximum performance, the amplifier should be used with black-current control.
(2) Feature
• Black - current measurement output for automatic black current stabilization (ABS)
• Single supply voltage of 200V
• Internal protection against positive appearing CRT flash-over discharge
• Protection against ESD
• Internal 2.5V reference circuit
• Controllable switch-off behavior
(3) Block Diagram
(4) Pin Description
PIN SYMBOL DESCRIPTION
1 N.C
2 N.C
3 V in inverting input
4 GND ground, substrate
5 I om Black-current measurement output
6 V dd supply voltage high
7 N.C
8 V oc cathode output
9 V of feedback/transient output
Vdd
MIRROR 1
in out
Pin 6
Vdd
Pin 9
Vof
Pin 8
Voc
DIFF.STAGE
+
—
Pin5
Iom
out out out out
gnd
Pin 4
Gnd
CURRENT
SOURCE
Pin 3
vin
TDA61O6Q
1X Vbias 1X
MIRROR 3
in
in out
Vdd
MIRROR 2