> If you REALLY don't want to use a PLL, use an oscillator. Tons of > options out there. I regularly use 100 and 125MHz oscillators. I don't have anything against using the PLL :-) Are there advantages to using oscillator, aside from a higher speed? I found this excellent page on crystals, http://www.sxlist.com/techref/clocks.htm, and have a few more questions! The page I just linked to suggested splitting the calculated capacitor into two separate capacitors (on each side of the crystal) and connecting one to GND and one to VCC. Is that good advice? Also, say I want to use the PLL to bump the system clock up to 48 MHz. If I used an 8 MHz crystal instead of a 4 MHz crystal (assuming both are valid options to use with the PLL), would that cut down the jitter/noise by a factor of two? Thanks, Nate --=20 Student Hobbyist www.roboticsguy.com --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .