[time-nuts] 31bit ADC, 1000 samples per second

Bob Camp lists at rtty.us
Mon Dec 10 18:55:17 UTC 2012


When your "sound source" is a thumper truck, you do indeed care about some
pretty low frequencies.


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Hal Murray
Sent: Monday, December 10, 2012 1:33 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 31bit ADC, 1000 samples per second

rlajeunesse at sbcglobal.net said:
> Nonetheless 20 bits indicates a matching reference would have to hold 1PPM
> over temperature, no simple task.  

The initial post called it "TI's ADS1282 geophone ADC".

I'm pretty sure that the geologists using geophones don't care about super 
low frequencies so they probably won't care if the reference changes due to 
temperature shifts.

Some geologists do care about super low frequencies.  That would be 
continental drift.

These are my opinions.  I hate spam.

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