[time-nuts] FE-5682A coming, any info?

Fabio Eboli FabioEb at quipo.it
Wed Nov 21 10:50:19 UTC 2012


Hello,
I have a pair of FE-5682A coming,
not that I need them, but I had flat
shipping from the seller freakyflickers
on ebay fro another item, I was asked 14USD each.

I'm a bit confused by the pinout on
the datasheet:
http://www.ko4bb.com/Manuals/05)_GPS_Timing/FEI/FE-5682A_Datasheet_REVB.pdf

The pinout:
1 RF out
2 RF RTN (Chassis GND)
3 DC ISOL RF RTN
4 CHASSIS GND
5 Lamp Volts
6 BITE OUT
7 EXT. C-FIELD V adj.
8 -48V RTN
9 CRYSTAL V MON
10 POWER -48V

a) power supply:
On the specs it reports
"Input Voltage Range +19 TO +32Vdc"
but the pinout reports pins 10 "POWER -48V" and 8 "-48V RTN"
how is supposed to be powered?

b) pins 1 and 2 seem self explanatory, but
pin 3 "DC ISOL RF RTN" what should mean?
Should I connetc it to ground (or any reference I have)?

c) pins 5 and 9 are monitors for working voltage of
lamp and VCXO, am I correct?

When I will have the units here I'll open them up and
post some pics.

Fabio.

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