BGD508 데이터 시트보기 (PDF) - Philips Electronics
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BGD508 Datasheet PDF : 8 Pages
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Philips Semiconductors
CATV amplifier module
Product specification
BGD508
HANDLING
As the BGD508 is a high gain amplifier with doubled output
power and 15 W dissipation, it is necessary to ground the
heatsink when the power supply is switched on or off.
Switching on
1. Ensure the 24 V (DC) supply is disconnected from the
printed-circuit board or test jig.
2. Ground the heatsink and the common pins (pins 2, 3,
7 and 8) of the module. Connect input and output pins
(pins 1 and 9) to a 75 Ω source and load.
3. Connect the 24 V (DC) to the module.
Permanent damage to the amplifier can be caused by
switching on the supply voltage when the heatsink is not
fully grounded.
Switching off
1. Disconnect the 24 V (DC) supply from the
printed-circuit board or test jig.
2. Disconnect the module.
Permanent damage to the amplifier can be caused by
disconnecting ground from the heatsink and common pins
before the module supply voltage is switched off.
1998 Mar 16
5
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