[time-nuts] source for ICS525 demo board ...
brooke at pacific.net
Sun Feb 19 17:20:36 EST 2006
I see what you mean. The ICS525 demo board has pins on the bottom that
will plug into either a full size or half size DIP packaged oscillator
A double sided PCB with a couple of 10 position switches, a couple of
caps, the SOIC-28 part, and 6 swage mount pins and a crystal probably
would fit a PCB about 1.1 x 1.7". I guess this tread started with John
asking where to get the demo board, and now I'd like to know where?
I've sent a query to Nu Horizons since they stock the ICS525 in a number
of flavors and show two versions of a 525 "Kit" with a price of "Contact
Brooke Clarke, N6GCE
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
Poul-Henning Kamp wrote:
>In message <43F8008C.3080401 at pacific.net>, Brooke Clarke writes:
>>In that case something like the Jameco 141372 Prototype board might
>>work. Doing this implies that you want a tight connection between the
>>ICS525 and the PC, which might be the case for an NTP type application.
>>In the ham radio uses they typically have a common PIC, like the 16F84,
>>that sends the divider codes to the ICS525 and has some sort of selector
>>switches to choose the channel number.
>The reason I like the ICS525 is that it has parallel input so you can
>configure it with DIP switches. For experimental work, that is the
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