In this video take a look at the SI5153B and try get it to produce an FM modulated audio signal. These ICs are clock generators however with a little tinkering they can make a cheap and effective local oscillator in radio receivers and transmitter projects.
The FM deviation I manage to produce from this IC isn't any good for wide band broadcast FM however it worked reasonably well for narrow FM for voice.
There is a lot more resource and library information that can be found at GitHub.
Link github.com/eth...
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Arduino SI5351B .ino zip file complete with header and source files.
Note: I found that the VCXO functionality didn't work properly with the library found in the Arduino library manager at the time of making this video so I have included the correct header and source file in this zip file. Also make sure they unpack in the same folder and you have Wire.h installed.
drive.google.c...
Circuit diagram of breakout board. Note: I am still developing this so it may change.
drive.google.c...
Clock IC used in the project.
Note: Care needs to be taken in order to get the correct IC, this is the link to the one I used from Digikey that works.
www.digikey.co...
Crystal used in project.
www.digikey.co...
Негізгі бет Playing With SI5351B & Trying to Produce Voice FM Modulation
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