topic KL0x / KL2x clock drift in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/KL0x-KL2x-clock-drift/m-p/474131#M28783 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I require to have an accurate clock for my application.</P><P>Looking at the 48MHz High Accuracy Clock (HIRC48M) spec, I see the <STRONG>Total Deviation</STRONG> and <STRONG>Period Jitter (RMS)</STRONG>.<SPAN style="font-family: HelveticaLTStd-Bold; font-size: 12pt; color: #000000;"><BR style="text-align: -webkit-auto;" /></SPAN></P><OL><LI>How do I factor these parameters in order to calculate what will be the clock divination after 24 hours for example.</LI><LI>Reading around I've seen that <STRONG>Period Jitter</STRONG> is calculated over a determined large number of cycles.<BR />Any idea the number of cycles used to come up with the figures shown in the KL03 period jitter table (34 psec typical and 150 psec max) ?</LI><LI>Are there other factors involved in drift calculation I have to take into account?</LI></OL><P></P><P>Thanks,</P><P>Yoram</P></BODY></HTML> Wed, 09 Dec 2015 17:39:16 GMT yoramshacham 2015-12-09T17:39:16Z KL0x / KL2x clock drift https://community.nxp.com/t5/Kinetis-Microcontrollers/KL0x-KL2x-clock-drift/m-p/474131#M28783 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I require to have an accurate clock for my application.</P><P>Looking at the 48MHz High Accuracy Clock (HIRC48M) spec, I see the <STRONG>Total Deviation</STRONG> and <STRONG>Period Jitter (RMS)</STRONG>.<SPAN style="font-family: HelveticaLTStd-Bold; font-size: 12pt; color: #000000;"><BR style="text-align: -webkit-auto;" /></SPAN></P><OL><LI>How do I factor these parameters in order to calculate what will be the clock divination after 24 hours for example.</LI><LI>Reading around I've seen that <STRONG>Period Jitter</STRONG> is calculated over a determined large number of cycles.<BR />Any idea the number of cycles used to come up with the figures shown in the KL03 period jitter table (34 psec typical and 150 psec max) ?</LI><LI>Are there other factors involved in drift calculation I have to take into account?</LI></OL><P></P><P>Thanks,</P><P>Yoram</P></BODY></HTML> Wed, 09 Dec 2015 17:39:16 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KL0x-KL2x-clock-drift/m-p/474131#M28783 yoramshacham 2015-12-09T17:39:16Z