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Radio based on RDA5807FP+PAM8403DR

Overview

You only need an RDA5807FP radio chip and other simple circuits to receive broadcast signals. It is easy to make. The board has a radio chip and a built-in PAM8403DR amplifier chip. You can connect a speaker or use headphones to listen to the radio. If you don't connect headphones, the amplifier chip on the board will amplify the sound and then listen to it through the speaker. After plugging in headphones, the circuit will automatically disconnect the 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)

Board schematic diagram:
pcb layout diagram: 3D board diagram:

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-08 12:46:13

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