[time-nuts] up converting 10MHz to 20MHz
lincoln at ampmonkeys.com
Tue Dec 9 19:47:56 EST 2014
I'm having a dumb idea, I have an MCU that uses a 20 MHz VC-TCXO. The micro, among other things, runs a loop and correct the oscillator by using a 1pps from a gps. I have a 10 MHz mv200 that I would like to try to use. I've got the control voltage handled but i will need to multiply its output up to 20 MHz. What would be the most kosher way do do this? I was having a look at Cypress's CY22381 because I have the programmer but the chips are not widely distributed. But nether are mv200's Silicon labs also make all kinds of clock chips as well.
What do you guys think? What would be the best way to scale up by X 2? lowish phase noise / jitter is important, low power is not.
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