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
MachXO2 internal clock tolerance / accuracy
Started by ●February 14, 2019
Reply by ●February 14, 20192019-02-14
Am 14.02.2019 um 05:32 schrieb tcz2008:> 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.