[time-nuts] Advantages of GNSS ???

[Chris Caudle]

On Tue, July 9, 2019 10:50 am, Tom Van Baak wrote:
> chip. Look carefully and see the DS1023-50, which is an 8-bit
> programmable delay line (~0 to ~127 ns in 0.5 ns steps).
...
> The reason this delay line technique isn't used
> much anymore is that AFAIK the Dallas chips are no longer produced.

The original is not, there is a close variant still in production:

https://www.maximintegrated.com/en/products/analog/clock-generation-distribution/DS1124.html

"The DS1124 is an 8-bit programmable timing element similar in function to
the DS1021-25. The 256-delay intervals are programmed by using a 3-wire
serial interface. With a 0.25ns step size, the DS1124 can provide a delay
time from 20ns up to 84ns with an integral nonlinearity of ±3ns. "

Small package, would be a little difficult to prototype by hand, but not
impossible.

-- 
Chris Caudle