FM transmitters/receivers are among the top favorite circuits of any electronic enthusiast. In this article/video, I have introduced a complete digital FM receiver design that has equipped with an LCD screen and three push-buttons. It can search for the FM signals from 76MHz to 108MHz manually and automatically (Scan mode). The signal strength is also displayed as a bar graph on the LCD screen. The output sound is amplified by a 3W+3W Class-D stereo amplifier that handles high-quality and strong enough audio power. As a controller, I have used the cheap and popular Arduino-Nano board. So let’s get started!
: TEA5767 Datasheet: https://www.sparkfun.com/datasheets/Wireless/General/TEA5767.pdf
: TEA5767 Schematic Symbol, PCB Footprint, and 3D Model: Component Search Engine - Free access to schematic symbols, PCB footprints and 3D models
: PAM8403 Datasheet: https://www.mouser.com/datasheet/2/115/PAM8403-247318.pdf
: PAM8403 Schematic Symbol, PCB Footprint, and 3D Model: PAM8403DR footprint, schematic symbol and 3D model by LITTELFUSE
: TS2937 Datasheet: https://www.mouser.com/datasheet/2/395/TS2937_D13-522475.pdf
: TS2937 Schematic Symbol, PCB Footprint, and 3D Model: [TS2937CW-5.0 RP footprint, schematic symbol and 3D model by Taiwan Semiconductor](https://componentsearchengine.com/part-view/TS2937CW-5.0 RP/Taiwan Semiconductor)
: CAD Plugins: https://www.samacsys.com/library-loader-help