Design of a Configurable Digital Phase Locked Loop Circuit

With the increasing demand for communication technology in the application of AIoT products, digital phase-locked loops are increasingly being adopted in modern digital transmission technology due to their advantages such as wide frequency modulation range of local oscillator signals and flexible and configurable modularity. This article designs a All Digital Phase-Locked Loop frequency modulation and demodulation device. With smart PD module design, low pass filter design, and NCO design, the whole ADPLL circuit is built up. Simulation and verify is executed for its functional characteristics, and can be used in high-performance communication.