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Enabling hands-free car kit for cell phones

Posted: 27 Aug 2013     Print Version  Bookmark and Share

Keywords:audio signal  cell phone  FM  in-car  hands-free 

The circuit discussed in this application note can retransmit the audio signal from a cell phone to the FM broadcast band. When the user places a cell phone speaker near the microphone, he or she can listen to the cell phone audio via the vehicle's FM radio. This can be used as an in-car hands-free speakerphone.

View the PDF document for more information.

Originally published by Maxim Integrated Products as "VCO Enables a Hands-Free Car Kit for Cell Phones".

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