In a message dated 4/23/2007 11:03:07 Pacific Daylight Time, [EMAIL PROTECTED] writes:
>So you can imagine that Vref noise on the order of 1e-12 might >just start being noticeable in the plot, meaning that if you want >short-term performance down in the low 12's and if you have >an OCXO that even gets that low, then you want to keep your >Vref (and DAC, filters, etc.) clean to microvolt levels. >It's just a back of the envelop calculation so I'm not really sure. >Someone correct me if you see something wrong. Hi Tom, the 10811 I had used in the past had about +-2Hz deviation for a 0 - 5V EFC... So 8E-08 sensitivity per volt. That very low sensitivity (10x lower than MTI parts) also gives a 10x higher EFC noise immunity. bye, Said ************************************** See what's free at http://www.aol.com. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
