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TC9400 VFC for PLL FM Demodulation (TC9400)

2015-01-17 16:41  
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This article describes the TC9400 VFC for PLL FM Demodulation (TC9400). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:TC9400.

FM demodulation can be done with phase locked loop (PLL), and this method is? common in high-end communication system. This system uses TC9400 that has high linearity. Using TC9400, the performance of phase-locked loop will increases greatly. That will give very precise tracking of Vout with respect to Fin. Here is the block diagram of the FM demodulation with a phase-locked loop:


The operation principle is very simple, since the feedback system force the V/F converter (VFC) to follow the FIN by manipulating the control input of VFC,? as the result, the control input of VFC will follow the the variation? of? FIN. This control signal is then tapped for the output of this circuit.

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