Arduino Si5351 library tuned for size and click free.

Single-Phase PLL / Second-Order Generalized Integrators Phase Lock Loop

PLL Simulator in SystemC-AMS

Very minimalistic 20meter transceiver Digital Frequency Synthesizer with 0.96 or 1.3 inch 128x64 OLED Display for Ham-radio use

Modified version of Si5351_OLED_DFS for simple CW TX use or DC receiver.

Library for the Si5351A (10 MSOP - 3 Clocks Only) clock generator IC in the Arduino environment , based on NT7S library.

TSA5511 PLL Controller for Arduino

Grafico PLL animato in C++