I need to build a crystal oscillator(square wave) at 2.4MHz and then using divider circuit divide it by 8 to get 300khz square wave.i dont know much about the crystal oscillator so i dont know which type of crystal oscillator to use and with what values of components ........Actually i need to build a oscillator at 300khz for my switch capacitor filter...i first tried to build a relaxation oscillator but after building it realized that it cant work at 300khz ....then i build a oscillator using 555 timer but its also not stable at this frequency........so i really need some help as i am stuck in this circuit from last 15 days and i dont know much about crystal oscillator circuits.......thanks in advance.............