I stand corrected. I also noticed that the OSC2 pin outputs a sine wave. Aren't those better than trapezoids for preventing harmonics? Andy David VanHorn on 11/17/2000 02:56:23 PM Please respond to pic microcontroller discussion list To: PICLIST@MITVMA.MIT.EDU cc: (bcc: Andrew Kunz/TDI_NOTES) Subject: Re: [PIC]: Using PIC oscillator output to drive divider? >You might want to allow for some resistors to prevent overdriving the next >stage, too. And an application for an international broadcasting licence, unless you pay careful attention to ground. A short, low Z path between the chips will be essential. I'd put series Rs in the clock lines, about 100 ohms, but not becuase of any "overdrive" mythology.. (how do you propose to "overdrive" a cmos input, with a signal that runs from ground to VCC?) The series R changes the waveform to trapezoidal, and keeps EMI down. Hard edges will get you hard EMI problems. -- Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu