[time-nuts] Advice on 10 MHz isolation/distribution

Bob Camp lists at cq.nu
Fri Feb 19 19:30:36 UTC 2010


Hi

As previously mentioned, these gizmos seem to all be spec'd out at 2V p-p
into 100 or 200 ohms. The only way to figure out what happens past that is
going to be to get one and see.

Bob  

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of life speed
Sent: Friday, February 19, 2010 2:06 PM
To: time-nuts at febo.com
Subject: Re: [time-nuts] Advice on 10 MHz isolation/distribution

Any opinions on the suitability of the TI OPA820 as a 10 MHz distribution
amp?  The voltage noise is only 7 nV/rtHz @ 100 Hz (gain=2, I'll be using
g=1), which is the best I've seen so far for a wideband amp.  Not as good as
the discrete transistor circuit, but it would use alot fewer parts.  It only
needs to be better than a 'good' OCXO.

Clay


      

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