[time-nuts] Thunderbolt disciplining process
brooke at pacific.net
Sun Feb 8 20:17:03 UTC 2009
It's U9 listed in the IC table at:
which you can also see in the lower left corner the board drawing at:
This is a pdf drawing so you can use the "+" button a number of times.
Richard W. Solomon wrote:
> Where does one find this chip ? Those little letters are hard to read !!
> 73, Dick, W1KSZ
> -----Original Message-----
>> From: Mark Sims <holrum at hotmail.com>
>> Sent: Feb 8, 2009 1:00 PM
>> To: time-nuts at febo.com
>> Subject: [time-nuts] Thunderbolt disciplining process
>> The tbolt uses the DS1620S chip in the SOIC-8 package. The DIP package has quite a bit of thermal mass and would probably not work as well. The chip revision is the last two characters of the date code line (second line on the SOIC chips). I am looking for a rev D chip.
>> What package? I may have a '1620 sample in my junk box from back
>> when they were still Dallas Semi.
>> Windows LiveT: Keep your life in sync.
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