MyriadRF-1 Board with external on-board clock generator


#1

Hi guys,

I am working on a project, using MyriadRF-1 board, my circumstances leads me to using my own microcontroller to talk to LMS6002D sitting on that board.

Reference stated that we need an external PLL reference clock ranging from 23-41 MHz. Since I need to supply this clock myself, may I know if anyone has ever tried this out with an on-board clock generator? If so, may you kindly advise the specific device you used?

P.S. using function generator is okay for testing phase, but I need it to be portable for my project, thus I would need an on-board generator.

Thank you,
Dareen


#2

Hello,

yes - I’ve developed a board with LMS6002d and a external clock generator.
Si53xx devices are quite good for that purpose. There are chips with I2C interface to set the frequency and to enable/disable the clocks for the LMS.
But you should select a very good clock reference for the clock generator, e.g. a temperature compensated oscillator.


#3

Hi reizei,

Thanks for your advice.
I’ve chosen to use Si5356 evaluation board as my external clock generator, since their chips are also the one in use by interface board.


#4

Hi @dareenh,

We’re you able to use the LimeSDR in external clock mode successfully? If yes, did you need to make a lot of changes to make the LimeSDR work and where you using it with OAI?

Thanks,
Mitch