SGS Thomson Microelectronics STV5111 Datasheet
RGB HIGH VOLTAGE VIDEO AMPLIFIER
■ Bandwidth : 6MHz typical
■ Supply Voltage : 200V typical
■ Rise and Fall Time : 60ns TYPICAL
■ CRT Cathode Current Outputs for Parallel or
Sequential Cut-off or Drive Adjustment
■ Flashover Protection
DESCRIPTION
The STV5111 includes three video amplifiers
desi-gned with a high voltage bipolar/CMOS/
DMOS technology (BCD). It drives directly the
three cathodes and is protected against
flashovers. Thanks to its three cathode current
outputs, the STV5111 c an be used with both parallel and sequential sampling applications.
STV5111
MULTIWA TT 15
(Plastic Package)
ORDER CODE: STV5111
Figure 1. PIN CONNECTIONS
Tab connected to Pin 8
15
14
13
12
11
10
BLUE FEEDBACK
BLUE CATHODE CURRENT
BLUE OUTPUT
GREEN FEEDBACK
GREEN CATHODE CURRENT
GREEN OUTPUT
9
8
7
6
5
4
3
2
1
RED FEEDBACK
GROUND
RED OUTPUT
RED CATHODE CURRENT
V HIGH VOLTAGE
DD
RED INPUT
GREEN INPUT
V LOW VOLTAGE
CC
BLUE INPUT
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STV5111
PIN FUNCTION
N° Function Description
1 Blue Input Input of the “blue” amplifier. It is a virtual ground with 2.5V bias voltage and 75µA
input bias current.
2 V
CC
3 Green Input Input of the “green” amplifier. It is a virtual ground with 2.5V bias voltage and 75µA
4 Red Input Input of the “red” amplifier. It is a virtual ground with 2.5V bias voltage and 75µA input
5 V
DD
6 Red Cathode Current Provides the video processor with a copy of the DC current flowing into the red
7 Red Output Output driving the red cathode. Pin 7 is internally protected against CRT arc
8 Ground Also connected to the heatsink.
9 Red Feedback Output driving the feedback resistor network for the red amplifier.
10 Green Output Output driving the green cathode. Pin 10 is internally protected against CRT arc
11 Green Cathode Current Provides the video processor with a copy of the DC current flowing into the green
12 Green Feedback Output driving the feedback resistor network for the green amplifier.
13 Blue Output Output driving the blue cathode. Pin 13 is internally protected against CRT arc
14 Blue Cathode Current Provides the video processor with a copy of the DC current flowing into the blue
15 Blue Feedback Output driving the feedback resistor network for the blue amplifier.
Low voltage power supply, typically 9V.
input bias current.
bias current.
High voltage power supply, typically 200V.
cathode, for automatic cut-off or gain adjustment. If this control is not used, Pin 6
must be grounded.
discharges by a diode limiting the output voltage to V
discharges by a diode limiting the output voltage to V
DD
DD
.
.
cathode, for automatic cut-off or gain adjustment. If this control is not used, Pin 11
must be grounded.
discharges by a diode limiting the output voltage to V
DD
.
cathode, for automatic cut-off or gain adjustment. If this control is not used, Pin 14
must be grounded.
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Figure 2. BLOCK DIAGRAM OF EACH CHANNEL
)
5
15
STV5111
(12, 9)
13
(10, 7
14
(11, 6)
GND
2
1
(3, 4)
8
REFERENCE
VOLTAGE
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