Making a radio based on RDA5807FP only requires a chip and other simple circuits to receive broadcast signals. It is simple to make. The board has a radio chip and a built-in TDA2822M/TR power amplifier chip. You can connect a speaker or use headphones to listen to the radio. It is not usually used If you connect headphones, it will be amplified by the power amplifier chip on the board and then listened to through the speaker. After plugging in the headphones, the circuit will automatically disconnect the power amplifier circuit and play through the headphones. The board button functions: POWER (power on/off), FERQ+ (frequency plus), FERQ- ( Frequency-), VOL+ (volume plus), VOL- (volume minus)
3D drawing of the board
Circuit diagram:
PCB diagram:
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