AnsweredAssumed Answered

About the Fsys of SPC5633mmlq60

Question asked by xu zheng on Sep 15, 2016
Latest reply on Sep 16, 2016 by David Tosenovjan

hi,

   I'm using spc5633mmlq60, the max Fsys is 60mhz,according the datasheet.

   Whe i set the Fsys 40Mhz,56Mhz,it work well.But  when i set 60Mhz,i could not work.

  Why the SPC5633mmlq60 Fsys could not be set 60Mhz?

 

 

                                               MFD + 4

        Fsys   =  Fref * ------------------------------

                                   (PREDIV + 1) * 2e(RFD)

 

     FMPLL setting:  Fsys = 60Mhz,

     (MFD=11,PREDIV=3,RFD=0,Fref=16Mhz)

Outcomes