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General Category => Your projects => Topic started by: matheuslps on July 27, 2011, 02:17:10 AM

Title: Any help with a PLL theory to FM transmitter?
Post by: matheuslps on July 27, 2011, 02:17:10 AM
So people, I searching for some data that explain how a PLL system works on a FM transmitter...

I found one website that do it: http://hem.passagen.se/communication/fm_pll_vco.html (http://hem.passagen.se/communication/fm_pll_vco.html)

IF I a understood correct, I need to apply a ref frequency on the PPL and it will do the rest. Hun?

My project needs to have a PLL MD1501. But i did not find anything about this CI (MD1501).

Anyone may help me please?

Thanks..
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Title: Re: Any help with a PLL theory to FM transmitter?
Post by: _pike on July 27, 2011, 09:50:53 AM
So people, I searching for some data that explain how a PLL system works on a FM transmitter...

I found one website that do it: http://hem.passagen.se/communication/fm_pll_vco.html (http://hem.passagen.se/communication/fm_pll_vco.html)

IF I a understood correct, I need to apply a ref frequency on the PPL and it will do the rest. Hun?

My project needs to have a PLL MD1501. But i did not find anything about this CI (MD1501).

Anyone may help me please?

Thanks..
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Is it obligate to use the particular chip?...Take a look here.... 

http://en.wikipedia.org/wiki/Phase-locked_loop
http://en.wikipedia.org/wiki/Frequency_synthesizer
http://en.wikipedia.org/wiki/Voltage-controlled_oscillator
Title: Re: Any help with a PLL theory to FM transmitter?
Post by: matheuslps on July 28, 2011, 01:58:43 AM
Thanks for your reply.

Just it? I am so dumb that can not use google to find those links on wikipedia..... :o

This will help a lot.

Thanks. I wil read all of them.

bye