Si4844 and Arduino make a full-featured AM/FM/SW radio
Raymond Genovese from All About Circuits has shared his idea of making a full-featured AM/FM/SW radio using SiLab’s Si4844-A10 radio chip, which is the first analog-tuned digital-display digital CMOS AM/FM/SW radio receiver IC integrating the complete receiver function from antenna input to audio output. It works with Host MCU through I2C-compatible 2-wire control interface.
AM/FM/SW radio using Si4844 chip
The idea of a single chip radio is intriguing. The prospect is especially interesting to me because, frankly, I envy the analog skills I associate with building a radio receiver. When I browsed the circuit literature in the area, I came across the Silicon Labs collection. One of their chips, the Si4844-A10 caught my attention. This receiver has AM/FM/SW capability with all the bells and whistles and it is designed to work with a microprocessor. Best of all, the support components required are mainly associated with the microprocessor display and control functions with only a small amount of antenna support needed. I couldn’t resist taking the plunge.