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| SD1680 Datasheet, PDF (6/7 Pages) STMicroelectronics – RF & MICROWAVE TRANSISTORS 800/900 MHz APPLICATIONS | |||
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SD1680
BIAS VOLTAGE SOURCE
C15 : 10nF + 100nF + 10µF
C16 : 10nF
C17 : 1µF
C18 : 1.2nF + 27nF + 10µF
D1 : AAY 49, Ge Diode Thermally Connected with Q3 Heatsink
D2 : 1N 4005, SI Diode Thermally Connected with Q3 Heatsink
D3 : 1N 4005, SI Diode Thermally Connected with RF Transistors Flange
L8, L9 : Ferrite Choke
Q3 : BDX 63B
R7 : 470â¦, 1/2W
R8 : 100â¦, Trimpot
6/7
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