PCB extension board MikroElektronika MIKROE-1431
The FM click™ with its Si4703 IC is a complete FM radio tuner in the form of add-on board. It supports worldwide FM band (76 – 108 MHz). The board contains two LM4864 audio amplifiers as well. Si4703 has a nice set of features like automatic frequency and gain control, RDS/RBDS processor, seek tuning and volume control. FM antenna is provided through the earphones cable (recommended length between 1.1 and 1.45 m), which is plugged into on-board 3.5mm audio connector. FM click™ has simple I²C interface.