Rising clock speeds and tighter signal timing has increased demand for accurate high-frequency modules. The PLL (phase-locked loop), which generates a high-frequency output signal based on an input ...

You can use Microchip's low-cost PIC16F818 microprocessor and a pair of gates to construct a digital PLL that can clean noisy digital signals over a range of 4 to 40 kHz. Featuring programmable lock ...