Measuring Phase Noise in PLLs | Modeling PLLs Using Mixed-Signal Blockset

In the fifth installment of this series, learn how to measure PLL phase noise using Mixed-Signal Blockset™ in Simulink®. In this demonstration, Kerry adds phase noise to the VCO subsystem and measures the resulting phase noise at the PLL output. He achieves this by leveraging a Phase Noise Measurement block that is part of Mixed-Signal Blockset. This block uses a hybrid approach to measuring phase noise. The measurement technique is based on analyzing the spectrum of the variation in zero-crossing times. This installment in the Modeling PLLs Using Mixed-Signal Blockset series only shows the mechanics of setting up the model for a phase noise measurement. In future videos in the series, Kerry will dive under the hood of these blocks to better understand how they work. Watch all the videos in this series: -------------------------------------------------------------------------------------------------------- Get a free product trial: Learn more about MATLAB: Learn more about Simulink: See what’s new in MATLAB and Simulink: © 2023 The MathWorks, Inc. MATLAB and Simulink are registered trademarks of The MathWorks, Inc. See for a list of additional trademarks. Other product or brand names may be trademarks or registered trademarks of their respective holders.