[time-nuts] STEL 1173 datasheet

Ed Palmer ed_palmer at sasktel.net
Wed May 7 16:25:20 UTC 2014

I've been looking for some kind of converter but, so far, I've come up 
empty.  A converter to allow a PLCC44 to be used in place of a DIP is 
easy to find, but a converter to allow a DIP to be used in place of a 
PLCC44  is rare, at best.

It also occurred to me that signal fidelity (crosstalk, ringing, etc.) 
could be an issue in such a conversion.  The 4065C manual says that the 
synthesizer clock is 45 MHz and the output of the 1173 drives an 
AD9713BAP D/A converter to generate the 12.6 MHz sine wave.

Signal fidelity could also be an issue with an FPGA replacement for the 
1173.  The FPGA would be on a board that would have to be connected to 
the original location with a cable around 10 cm. in length.


On 5/7/2014 7:41 AM, Jason Rabel wrote:
>> I can now see that a conversion between the dip and PLCC would be do-able
>> but as mentioned earlier nasty.
> Don't they make socket converters? I would think that would be the easiest way to go assuming the pinouts would be correct.

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