[time-nuts] HP-10811AB-OCXO interface questions

[Bruce Griffiths]

For sine to square wave conversion use LTC6957 (select variant to suit following logic).


Bruce

> On 02 September 2020 at 17:24 Manfred Bartz <vk3aes at gmail.com mailto:vk3aes at gmail.com > wrote:
> 
> 
>     Hi all,
> 
>     I bought 2 x 10811 OCXOs for a 10MHz GPSDO project I am working on.
>     The OCXOs came with an interface board HP 05328-20027, see attached
>     pictures.
> 
>     Questions:
>        1. Is it worth keeping the interface board?
> 
>     a. If yes, does anyone have the schematic and the data on the ICs?
>     b. What is that TO220 device? and
>     c. why is it mounted on a standoff on the back of the PCB?
>        1. Any advice/caution on matching the OCXO output impedance?
>        2. Any recommendation for a (>= 4-ch) distribution amplifier?
>        3. Any advice on a low jitter comparator for further digital processing,
> 
>     e.g. for a 1pps signal?
> 
>     Thanks and 73
>     --
>     Manfred VK3AES
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