[time-nuts] Re: About 10 MHz Optical Distro
Lux, Jim
jim at luxfamily.com
Sun Aug 29 19:24:19 UTC 2021
On 8/29/21 12:13 PM, CFO wrote:
> From here
> https://forums.xilinx.com/t5/Serial-Transceivers/Sending-10Mhz-clock-over-Fiber/td-p/1026390
>
>
> They suggest these
>
> *** SNIP ***
> what length do you need to send over ?
>
> this sort of stuff is a LOT cheaper and more rugged, and more than
> capable of sending 10 MHz clock
>
> Cable
> https://uk.farnell.com/broadcom-limited/hfbr-rus100z/cable-fibre-optic-1-fibre/dp/1247714
> <https://uk.farnell.com/broadcom-limited/hfbr-rus100z/cable-fibre-optic-1-fibre/dp/1247714>
>
>
> Drivers
> http://www.farnell.com/datasheets/1812660.pdf?_ga=2.29282815.2110613125.1570030173-2072545025.1569659196
> <http://www.farnell.com/datasheets/1812660.pdf?_ga=2.29282815.2110613125.1570030173-2072545025.1569659196>
>
>
> and you just drive it with TTL.
Yeah, but those are piece parts. What would be nice is if a cheap "box"
could be found - ideally (for 10 MHz) BNC in/out and fiber connector
with a wall wart for power. Maybe this a good idea for a TAPR project if
someone was willing to do the design (!)
There's probably plenty of applications out there in amateur radio land
for a inexpensive RF over optical link with "decent" performance
(defined however).
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