have a look at the maxim web site for the MAX2620 oscillator chip. This is designed for cell phones, but goes down to 10MHz. They also have some design info to sort out suitable components in the data sheet and application note that are available. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: "[PIC]:" PIC only "[EE]:" engineering "[OT]:" off topic "[AD]:" ad's