How to find this RF SMD transitor 0-3Ghz ?
时间：04-04
整理：3721RD
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Hello,
I have a SMD transistor which is located on a buffer output amplifier directly before the pi-attaneuator passive network on the output N-type terminal, its marking code is BW5 where pint 1 is the input from , pin2 is connected to ground and pin 3 is its output to the pi-attenuator connected also to +5 by an inductor .
many thanks for any help!
attached is a picture of the transistor on the PCB.
I have a SMD transistor which is located on a buffer output amplifier directly before the pi-attaneuator passive network on the output N-type terminal, its marking code is BW5 where pint 1 is the input from , pin2 is connected to ground and pin 3 is its output to the pi-attenuator connected also to +5 by an inductor .
many thanks for any help!
attached is a picture of the transistor on the PCB.
It might be this MMIC amplifier:
http://www.rfmw.com/datasheets/rfmd/..._Datasheet.pdf
Many thanks Volker! it is the correct one, BW5 is marked on this MMIC at page 4 in the datasheet you gave me!
George
Circuit seems interesting. Is it a PLL board? Could you also upload rest of the circuit?