[time-nuts] Seeking Toyocom or NDK through hole oscillator information

[Tim Shoppa]

Quoting Wikipedia; 16.368 MHz is 16 times the 1.023 MHz C/A GPS signal chipping rate; multiplied by 96.25 to get the 1575.42 MHz L1 frequency and multiplied by 75 to get the 1227.60 MHz L2 frequency.

> On Jun 14, 2018, at 1:53 AM, skipp isaham via time-nuts <time-nuts at febo.com> wrote:
> 
> Seeking Toyocom or NDK through hole oscillator information
> 
> 
> Hello again to the group,
> 
> I'm looking for a Data Sheet or information that would provide
> the connection information for a (Epson) Toyocom TCO-519 or NDK
> PIA3003A Oscillator module, both are through hole mounting.
> 
> Both appear to be a reasonably conventional, but now a discontinued
> through-hole part, but I'm unable to find any same or similar data
> sheet information that would tell me how to use connect them. Both
> are 16.368 MHz
> 
> Appearance wise, they are both an approx 1 inch square, 3/8" high,
> silver metal covered oscillator module. Five through hole mounting
> connection leads on the bottom, one in each corner, the fifth lead
> is centered along the side between two corners.
> 
> A data sheet or even just the generic connection information with
> an idea of what each pin does would be wonderful. A few of these
> arrived in a parts donation box hand labeled "Trimble Development".
> 
> Possibly something Trimble significant with the 16.368 MHz
> frequency that I'm not yet aware of... if anyone would care
> to speculate, please do.
> 
> 
> Thank you in advance for your replies
> 
> cheers,
> skipp
> 
> direct Email skipp025 at yahoo.com
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