Posts: 4
Registered: ‎01-25-2017
Accepted Solution

Si4703 breakout board

Hi!, I have a setup with a PIC24FV16KM202 and a Si4703 in I2C mode. 

If I touch any of the pin's at the Si4703 breakout board the music stop's and the frequency is changed to 87,5MHz??

In my search I have soldered 1uF at the +3.3v and gnd, and I still have the issue.


Thank you for your time. 

Posts: 53
Registered: ‎01-27-2015

Re: Si4703 breakout board

Hi Elmek,


The host MCU may be reset when you touch the wire. 
Can you check the voltage of the power supply when you touch the wire?

Posts: 7
Registered: ‎07-27-2016

Re: Si4703 breakout board



Please have a try of the circuit in attached file. The RC circuit(resistor and cap) need to be placed very close to the pin5 of the tuner.




Mingliang Yang

Posts: 4
Registered: ‎01-25-2017

Re: Si4703 breakout board

Hello, thank you for the answer.
That works, now there is no problem when touching Any of the pins.
Regards Michael Hinsch Nedergaard