FM radio board

This product is high quality FM radio receiver based on the TEA5767 chip, controlled by Attiny85. The board is small and can be used for DIY project having FM radio. The board has an SPI interface and the microcontroller can be re-programmed as you desire. This also makes the product a development board for TEA5767 module.

Features:

• The audio amplifier is the Texas Instruments (NSC) LM4880 high quality headpühone amplifier
• Stereo potentiometer is used to control the volume
• The radio has two control buttons: "Frequency UP" and "Frequency DOWN". Pressing the "Frequency UP' button the radio finds the first available FM radio station and plays it. If a signal is stereo, a LED indicator turns on. For the control of the FM receiver chip, the smallest and cheapest Microchip microcontroller is used (Attiny85).
• It covers the 88MHz-108MHz FM radio range. The frequency scan starts from 88 MHz.
• The passive devices used are all SMD type
• The electrolytic capacitors are tantalum or ceramic (Low ESR). This made it possible to implement the whole radio on a board with size 5 cm x 3.5 cm. The size limiting parts are the mechanical one. All of them are placed on one side of the PCB for easy control of the radio and ease of assembly in a housing. The radio can use the headphone as an antenna and the radio receipt is very stable and high quality.
• Power supply: 2.7V - 5V.