The TADD-2 divider is now available for purchase from TAPR.
The TADD-2 accepts a 5 or 10 MHz input signal and generates 1 PPS outputs (as well as other pulse rates). It has six low-impedance output channels, each of which can be individually configured, and has a sync circuit that allows the output pulse train to be synchronized to an external source such as a GPS.
Preliminary tests show a temperature sensitivity of about 50 ps/degree C, and an RMS jitter level of <20 picoseconds.
The divider is based on a Microchip PIC device, and the code was written by Tom Van Baak and Richard McCorkle. The source code is being released as Open Source Software.
The TADD-2 is sold as a kit. It uses through-hole components so doesn't require any special tools for assembly. The TADD-2 is the same form factor as the other TADD boards, and fits in the same enclosure (also available from TAPR).
The price is $69, or $62 for TAPR members. Shipment should start in the next two weeks.
More information about the TADD-2 is available at http://www.tapr.org/kits_tadd-2.html . The assembly/instruction manual (which is still very preliminary and incomplete) is at http://www.tapr.org/~n8ur/TADD-2_Manual.pdf .
In an earlier posting, I mentioned that I was also working on a miniaturized, "dongle" version of the TADD-2. That work continues, and we hope to make the TADD-2 Mini available sometime this summer. I'll post an update when the details firm up.
John _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
