[hpsdr] [time-nuts] New product: the TAPR "PulsePuppy"

[John Ackermann N8UR]

Sorry, a typo got into the URL for the manual.  Remove the extraneous 
"m" after ".pdf": http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdf

On 12/23/2017 04:00 PM, John Ackermann N8UR wrote:
> I've developed a little board called the PulsePuppy that supports 
> surplus OCXOs in the common "Eurocase" form factor to provide outputs at 
> 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one 
> of TVB's picDIV firmware images.
> 
> The attached pictures show one prototype unit in closeup, and a panel of 
> three that are used for TICC counter production testing (providing one 
> 10 MHz and two independent PPS outputs).  Also attached is an ADEV plot 
> of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an 
> idea of the performance you can expect from these small oscillators 
> (they and others like them are available from several eBay sources for 
> <$30).
> 
> The PulsePuppy is available from TAPR as a semi-kit and can be ordered 
> at http://tapr.org/kits_pp.html for $69.  We expect to ship the kits in 
> mid-February (delivery of the boards from our contract manufacturer is 
> the gating factor).
> 
> The assembly manual with schematics can be downloaded at 
> http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs 
> in brief:
> 
> * Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000
>    TCXO (TAPR has a bunch of these TCXOs remaining from another project
>    and, while they last, is offering them bundled with the PulsePuppy
>    for an attractive price).
> 
> * PPS divider uses TVB PD-13 firmware that includes capability to
>    synchronize to an external clock.
> 
> * TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS,
>    or 1 PPS rates.
> 
> * A BNC output connector is included, but the board contains a footprint
>    to install a user-provided SMA.
> 
> * 25-turn EFC trimmer with 0-5V range.
> 
> * Option to support sine-wave as well as square wave oscillators.
> 
> * Board dimensions are 1.5 x 3.5 inches.
> 
> TAPR is offering the PulsePuppy as a "semi-kit" that includes the 
> printed circuit board with all surface-mount components installed, and a 
> handful of through-hole parts (like voltage regulators, jumpers, and 
> connectors) for the user to install.  By leaving these parts for the 
> user, the board can be customized -- for example to use different 
> voltages or to support a sine-wave oscillator.
> 
> Note that the kit DOES NOT include the oscillator, unless you buy the 
> Crystek TCXO bundle.
> 
> Happy Holidays to all!
> 
> John
> 
> 
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