[time-nuts] Acam TDC's

paul swed paulswedb at gmail.com
Fri Apr 4 22:27:05 UTC 2014

An interesting chip. I had never heard of it before and suspect this may be
the gizmo used in closed system water leak detection. Won't go into why I
know about that.
I did find comments from 2007 about the chip and atmega but nothing since.
When I went looking for distributors or pricing to get an idea came up
empty. Though Amazon will sell you lots of vitamins or something called TDC.

So with all that said I will guess that for time-nuts purposes the
capabilities of this chip have been far exceeded by the various array
technologies we have at very cheap prices today. The ability to create long
counters at very high speeds.
Only a guess though.

On Fri, Apr 4, 2014 at 5:35 PM, Angus <not.again at btinternet.com> wrote:

> Hi,
> With all the recent talk of interpolators, I started looking at the
> acam TDC chips again - the GP22 is pretty cheap now for anyone who's
> up for playing with the tiny QFN package.
> I was wondering if anyone here has tried them or properly evaluated
> them as a TIC - especially the GP2/GP21/GP22.
> A few years back a some folk were talking about it, but I did not hear
> much since that.
> Angus.
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