This is an evaluation board for the Si4703 FM tuner chip. Beyond enabling you to tune in to FM radio stations, the Si4703 is also capable of detecting and processing both Radio Data Service (RDS) and Radio Broadcast Data Service (RBDS) information. The Si4703 even does a very good job of filtering and carrier detection. It also enables data such as the station ID and song name to be displayed to the user.

Using this board, you will be able to pick up multiple stations just as well as with a standard FM radio. The board breaks out all major pins and makes it easy to incorporate this great chip into your next radio project. The power bus, the 3.3V and GND pins are broken out For communication. The breakout provides access to SDIO and SCLK for I2C communication while RST can be used for easy resetting. The SEN pin enables the user to change the mode of functionality of the IC. The last two pins broken out are GPIO1 and GPIO2 which can be used as general input/output pins, but also can be used for things like the RDS ready, seeking or tuning functions.

Keep in mind, by plugging headphones into the 3.5mm audio jack, you effectively use the cable in your headphones as an antenna! Therefore, this board does not require an external antenna if using headphones or a 3.5mm audio cable longer than 3 feet.

ProTechTrader's Si4703 FM Tuner Breakout Board is Designed to be compatible replacement of the SparkFun FM Tuner Evaluation Board WRL-12938 V13 with matching pinout of GND 3.3V SDIO SCLK SENRST GP101 GP102 - Note: This matches the latest style (v13) with the 3.3v and GND pins switched compared to the older V11 SparkFun WRL-10663 breakout board The Si4703 FM Tuner Breakout Board is a development board for the Silicon Laboratories Si4703 FM tuner chip. Beyond being a simple FM radio, the Si4703 is also capable of detecting and processing both Radio Data Service (RDS) and Radio Broadcast Data Service (RBDS) information. The Si4703 even does a very good job of filtering and carrier detection. This all means it can access data such as the station ID and song name when available. Please Note: Soldered Header not Included The Si4703 board can pick up radio stations as well as any standard radio. The board breaks out and labels all major pins and makes it easy to incorporate this chip into your next radio D.I.Y. project. By plugging headphones into the 3.5mm audio jack, the headphone cable acts as a unique antenna. Therefore, this board does not require an external antenna if using headphones or a 3.5mm audio cable longer than 3 feet. Example Pin Connections to Arduino Pro Mini Once you have headers soldered (not included), you will use jumper wires to connect between the Si4703 and the Pro Mini. Note in this example we are using a 3.3V Pro Mini to prevent damage to the logic on the Si4703. Si4703 ? 3.3V Pro Mini GND ? GND 3.3V ? VCC SDIO ? A4 SCLK ? A5 RST ? D2 GPIO2 ? D3