TDA9533 STMicroelectronics, TDA9533 Datasheet - Page 9

• Manufacturer Part Number: TDA9533
• Manufacturer: STMicroelectronics

Specifications of TDA9533

• Single Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Supplier Unconfirmed

7 - ARCING PROTECTION
As the amplifier outputs are connected to the CRT
cathodes, special attention must be given to pro-
tect them against possible arcing inside the CRT.
Protection must be considered when starting the
design of the video CRT board. It should always
be implemented before starting to adjust the dy-
namic video response of the system.
Figure 4. Arcing protection network (one channel)
( * ): To be connected as close as possible to the device.
TDA9533
TDA9530
GND
V
DD
OUT
100nF/250V
C12
150 /0.5W
( * )
R10
4.7 F/150V
C24
10
R29
The arcing network that we recommend (see
Figure 4) provides efficient protection without de-
teriorating the amplifier video performances.
The total resistance value between the amplifier
and the CRT cathode (R10+R11) should not be
less than 300 .
Spark gap diodes are strongly recommended.
0.39 H
33
R19
L1
FDH400
D12
High Voltage (90-110V)
150 /0.5W
Spark gap
R11
F1
100nF
C18
TDA9533
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