[time-nuts] WWV or Net Clock controlled oscillator

Thomas Miller tmiller11147 at verizon.net
Mon Mar 5 15:07:26 EST 2018


 Take a look at the Maxim
DS32KHZS 32.768kHz Temperature-Compensated Crystal Oscillator TCXO
 Available in 14 pin dip, needs +5 (you have), batt (you have, ground. Supplies 32,768 that you feed into pin 17 of the clock chip after removing the existing Xtal. Supposed to hold 1 min per year over the full temp range with no adjustment. 

This guy says he has them in the 14 pin dip:
<https://www.ebay.com/itm/DS32KHZS-32-768kHz-Temperature-Compensated-Crystal-Oscillator-TCXO-SOIC-16-USA/231767038534?epid=1801717048&hash=item35f6645a46:g:ZXgAAMXQUY1Q-BXP>

Regards



 

-----Original Message-----
From: D. Resor <organlists at pacbell.net>
To: 'Tom Van Baak' <tvb at leapsecond.com>; 'Discussion of precise time and frequency measurement' <time-nuts at febo.com>
Sent: Mon, Mar 5, 2018 10:02 am
Subject: Re: [time-nuts] WWV or Net Clock controlled oscillator

The unit has an external switching power supply which provides 5+ VDC.  In addition there is a 24VAC transformer which provides the power for the bell solenoids.  This where the AC reference is "sampled"  I cannot completely cut out the AC transformer as it is essential to other operations of the DCBI.

A lot to study.....






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