i.MX RT1170 oscillator frequency 24MHz or 48MHz

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i.MX RT1170 oscillator frequency 24MHz or 48MHz

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auftrag2021
Contributor III

Hello, 

I read this info in the tech datasheet

auftrag2021_0-1615363265695.png

 

But I also see this in the RT1170 EVK Board schematic.

auftrag2021_2-1615363330350.png

 

Which one is correct? Does that mean I have only the half maximal frequency (500MHz indead of 1GHz) with the RT1170EVK?

 

 

 

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mjbcswitzerland
Specialist V

Hi

It looks like there is an error in the data sheet since the high speed OSC is specified only for 24MHz operation and all PLLs sourcing from it need 24MHz to work correctly.

mjbcswitzerland_0-1615412341087.png

Regards

Mark
[uTasker project developer for Kinetis and i.MX RT]
Contact me by personal message or on the uTasker web site to discuss professional training, solutions to problems or rapid product development requirements

For professionals searching for faster, problem-free Kinetis and i.MX RT 10xx developments the uTasker project holds the key: https://www.utasker.com/iMX/RT1064.html

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626 Views
auftrag2021
Contributor III

I have some other information in the  reference manual  (not the tech. datasheet)

I think there are different way to connect the oscillator or quartz to the chip. 

I think in the EVK Board it is the 24MHz quartz. (maybe the tech. datasheet here confused a little...)

auftrag2021_0-1615473447624.png

 

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