Microcontroller Oscillator Circuit Design Considerations

FREE-DOWNLOAD C Cox… – Freescale Semiconductor Application Note …, 1997 –
A crystal is a small wafer of high grade quartz cut at a certain angle and to a certain size. Thinner
cuts give higher frequency crystals, approximately 0.15 mm at 15 MHz. Crystals are designed
and manufac- tured to operate a the rated frequency with a certain load capacitance (CL)