[time-nuts] low noise multiplication to 100 MHz

Hal Murray hmurray at megapathdsl.net
Mon Jan 25 20:39:41 EST 2016


bill at hsmicrowave.com said:
> Aaah - but then you need a microprocessor (and its noise if you're not
> careful) to control it. IMHO - too complicated an approach.

Yes, but you don't need many smarts to send a few bits to configure a PLL 
chip.

You can get low end microprocessors in 8 pin packages.  They don't even need 
an external clock or crystal, just a bypass cap.  If you are concerned about 
noise, they can go into deep sleep mode.  Most of them have really low power 
modes designed so that the battery for a chip can run close to shelf life.


-- 
These are my opinions.  I hate spam.





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