Service manual

SERVICE MANUAL
Triple Video Output Amplifier TDA6108JF/6107Q
1. Features
·Black-Current Stabilization (BCS) circuit
·Typical bandwidth of 9.0MHz (for TDA6108JF) ·Thermal protection.
or 5.5MHz (for TDA6107Q) for an output
2. General Description
signal of 60 V (peak-to-peak value) The TDA6108JF includes three video output
·High slew rate of 1850V/μs (for TDA6108JF) amplifiers in one plastic DIL-bent-SIL 9-pin
or 900V/μs (for TDA6107Q) medium power (DBS9MPF) package (SOT 111
·No external components required -1),using high-voltage DMOS technology, and is
·Very simple application intended to drive the three cathodes of a color
·Single supply voltage of 200 V CRT directly. To obtain maximum performance,
·Internal reference voltage of 2.5 V the amplifier should be used with black-current
·Fixed gain of 51 (for TDA6108JF) or 50 (for control.
TDA6107Q)
3. Ordering Information
Fig. 17 Pin configuration.
Package Type
Number
Name Description Version
TDA6108JF/
TDA6107Q
DBS9MPF
Plastic
DIL-bent-SIL
medium power
package with fin;
9 leads
SOT111-1
4. Block Diagram
TDA6108JF
/
Fig. 16
5. Pinning Table 5 Pinning
SYMBOL PIN DESCRIPTION
V
i(1)
1 Inverting input 1
V
i(2)
2 Inverting input 2
V
i(3)
3 Inverting input 3
GND 4 Ground (fin)
I
om
5 Black-current measurement output
V
DD
6 Supply voltage
V
oc(3)
7 Cathode output 3
V
oc(2)
8 Cathode output 2
V
oc(1)
9 Cathode output 1
6. Refer to Table 18 about Functions and Service Data of the IC’s Pins.
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