kelumsd1 Posted January 28, 2010 Report Share Posted January 28, 2010 Hi,I much appreciate if enyone can give me a proper PCB design for this FM transmitter schematic.Please... :-\http://www.mariucci.freeserve.co.uk/fm2w.gif Quote Link to comment Share on other sites More sharing options...
jerrydavid Posted January 28, 2010 Report Share Posted January 28, 2010 Maxium have one FM transimitter device. Lot of FM transimision module use this design.check this link. http://electronics-diy.com/Single_Chip_FM_Transmitter.php Quote Link to comment Share on other sites More sharing options...
audioguru Posted January 28, 2010 Report Share Posted January 28, 2010 Maxim have one FM transimitter device. Lot of FM transimision module use this design.check this link. http://electronics-diy.com/Single_Chip_FM_Transmitter.phpIt has a very low output power so its range is not far. Maybe across a street.It is tuned with voltage so it needs a voltage regulator.It is missing pre-emphasis (treble boost) like all FM radio stations have so it will sound muffled on an FM radio.It is mono, not stereo. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted January 28, 2010 Report Share Posted January 28, 2010 So, it's better than the circuit originally posted?At least it works.The original circuit won't work because the aerial (antenna) is connected to the positive power supply which is pay-passed to 0V via C4 and C5.By the way this site is not a free PCB design service but an electronics self-help site run by volunteers. Quote Link to comment Share on other sites More sharing options...
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