Photos are posted in alt.binaries.schematics.electronic under same subject
I am trying to locate a manufacturer and part number for three RF parts in some existing equipment (no docs available). The marking don't match anything I can find from the usual suspects, and no one's marking schemes seem similar. I'd appreciate if anyone can point me to the vendor.
The first is a GaAs SPDT RF switch in a 6 pin SOT, and is marked "31E". Its pinout appears to be:
1 RF#1
2 Ground
3 RF#2
4 Control
5 RF Common
6 Ground
The other two are amplifiers, labeled "4CH" and "4CJ". They are also in 6 pin SOT package with pinouts of
1 Ground
2 Ground
3 RF In
4 DC in
5 n/c
6 RF out
Thanks, Steve