[time-nuts] Thunderbolt disciplining process

Brooke Clarke brooke at pacific.net
Sun Feb 8 20:17:03 UTC 2009


Hi Dick:

It's U9 listed in the IC table at:
http://www.prc68.com/I/ThunderBolt.shtml#IC

which you can also see in the lower left corner the board drawing at:
http://www.prc68.com/I/ThunderBolt.shtml#Dwg
This is a pdf drawing so you can use the "+" button a number of times.

Have Fun,

Brooke Clarke
http://www.prc68.com

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. 
>> http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_022009
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
> 
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.


More information about the time-nuts mailing list