EDAboard.com | EDAboard.de | EDAboard.co.uk | WTWH Media

MachXO2 internal clock tolerance / accuracy

Ask a question - edaboard.com

elektroda.net NewsGroups Forum Index - FPGA - MachXO2 internal clock tolerance / accuracy

tcz2008
Guest

Thu Feb 14, 2019 5:45 am   



Hi everyone!

I have a hard time finding the tolerance / accuracy for the internal oscillator for the MachXO2. I seem to remember it being around 5%, which isn't really that great.
Can anyone point me in the direction where that's definitively mentioned?!

Cheers!

-Mux

Thomas Heller
Guest

Thu Feb 14, 2019 10:45 am   



Am 14.02.2019 um 05:32 schrieb tcz2008:
Quote:
I have a hard time finding the tolerance / accuracy for the internal
oscillator for the MachXO2. I seem to remember it being around 5%,
which isn't really that great. Can anyone point me in the direction
where that's definitively mentioned?!


It's even slightly worse than 5%:


MachXO2 Family Data Sheet, DS1035 Version 3.3, March 2017
page 3-33:

Oscillator Output Frequency (Commercial Grade Devices, 0 to 85°C)
125.685 133 140.315 MHz
Oscillator Output Frequency (Industrial Grade Devices, –40 °C to 100 °C)
124.355 133 141.645 MHz


MachXO2 sysCLOCK PLL Design and Usage Guide
March 2017 Technical Note TN1199,
page 28:

The MachXO2 device has an internal oscillator that can be used as a
clock source in a design. The internal oscillator accuracy is +/- 5%
(nominal). This oscillator is intended as a clock source for
applications that do not require a higher degree of accuracy in the clock.

elektroda.net NewsGroups Forum Index - FPGA - MachXO2 internal clock tolerance / accuracy

Ask a question - edaboard.com

Arabic version Bulgarian version Catalan version Czech version Danish version German version Greek version English version Spanish version Finnish version French version Hindi version Croatian version Indonesian version Italian version Hebrew version Japanese version Korean version Lithuanian version Latvian version Dutch version Norwegian version Polish version Portuguese version Romanian version Russian version Slovak version Slovenian version Serbian version Swedish version Tagalog version Ukrainian version Vietnamese version Chinese version Turkish version
EDAboard.com map