PLL model in simulink

houria · Mar 30, 2011

Hi,
I'm a student, i do my project " design of analog PLL (phase locked loop).
I want to build a VCO, low pass filter, phase frequency detector (PFD) model using simulink.all these components should be analog.
In the library of simulink i don't find any component that named PFD or PD (phase detector) also differential comparato

please i need your help.
thanks.

BMR · Apr 2, 2011

houria said:
Hi,
I'm a student, i do my project " design of analog PLL (phase locked loop).
I want to build a VCO, low pass filter, phase frequency detector (PFD) model using simulink.all these components should be analog.
In the library of simulink i don't find any component that named PFD or PD (phase detector) also differential comparato

please i need your help.
thanks.

You can build a PFD by just using NAND gates or by using a 2 D-FF's with a NAND. And by the way PFD is a digital block.

Gayathri Jeyaram · Jul 30, 2012

Use a product box as a mixer. As it is an analog pll, a mixer should be used. LTI from control system toolbox for Loop filter. Continous time VCO for VCO. You can put other sensitivities like Kd Kf Kv using gain.

PLL model in simulink

houria

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BMR

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Gayathri Jeyaram

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PLL model in simulink

houria

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