[time-nuts] Of rubidium life and piggy-bank anemia....

[Hal Murray]

> So use  a gate array to implement a multichannel time stamp device.

FPGA development boards are readily available and some people consider the 
price within range.

Would digital inputs be good enough?  Suppose you feed several 10 MHz signals 
into a FPGA and program it so each input signal drives a counter.  Ignoring 
implementation details like synchronization, is that good enough to be 
interesting?  I'm assuming you have a PC that grabs all the counters every N 
ticks/seconds/hours/whatever.

Note that there is another clock involved.  It's the one driving the FPGA or 
PC.

How much would it help if there was an A/D on each input channel and the FPGA 
could capture a dozen samples on each signal around the time that it latches 
a copy the counters?


-- 
These are my opinions, not necessarily my employer's.  I hate spam.