[time-nuts] ngTADD-1

Bob Camp lists at rtty.us
Tue Apr 23 18:16:15 EDT 2013


Hi

There are optical links that are better than your typical opto coupler. I have not seen many that are good to -170 dbc. 

Bob

On Apr 23, 2013, at 3:58 PM, Kevin Rosenberg <kevin at rosenberg.net> wrote:

> On Apr 23, 2013, at 2:24 AM, WB6BNQ <wb6bnq at cox.net> wrote:
>> I had to buy the three components at three different places.  The TOSLINK receiver came from Mouse (p/n 757-TORX177F,T) and cost $1.31.  The TOSLINK transmitter came from DIGIKEY (p/n 1080-1428-ND)
>> and cost $0.866.  At the time, for whatever reason each supplier had the one end but not the other.  
>> [...]
> 
> Thanks, I did consider optical isolation, but wasn't sure of what parts to use. Looks like the receiver isn't stocked by Mouser anymore, but I could look for it.
> 
> I saw the transmitter's max jitter is specified at 20 ns. I wonder if there is a reasonably-priced substitution with < 1 ns jitter.
> 
> Thanks for your thoughts,
> 
> Kevin
> 
> 
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