Hi there, Can ı place 48MHZ active clock as a MEMS BASE RESENATOR for HSE CLOCK

Part Number is STM32L4R9ZIT6

This topic has been closed for replies.

Principal III

Do you mean a MEMS oscillator with active full-swing output?

If yes, that should work as with any other oscillator.

Anyway, check the STM's datasheet for maximum HSE input frequency.

Associate

Accorcing to datasheet, HSE clock value is between 4-48MHz.

Clock referance part number is given at AN2867 however HSE clokc is not mentioned.

Therefore ı asked this question.

Can ı place active oscillator (MEMS, part number ASFLMB-48.000MHZ-LR-T ) instead of 48MHZ crystal (part number ABM8G-48.000MHZ-18-D2Y-T)?

Principal III

That should work, it looks like the ASFLMB-48.000MHZ-LR-T exactly behaves like an oscillator.

Just curious: why do you want to use a MEMS oscillator? It will definitely draw a few more mA.

Although the MEMS oscillators have become quite good over the years, I'm currently using a MEMS VCO.

Sign up