FM radio module / LCD version
Product parameters:
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Output power: 500mW (drive headphones)
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Frequency response range: 50Hz-18KHz
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Channel: Stereo
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Receiving frequency adjustment range:
Turn off campus broadcast 87.0MHz-108.0MHz, turn on campus broadcast 76.0MHz-108.0MHz
1.PLL digital frequency lock, no frequency
2.30 level digital volume control
3.76.0-108.0MHZ full coverage
4. Wide voltage 3-5V power supply
5. Automatic search storage function
6. Power off memory volume / frequency
7. Mono / Stereo Control
8. Support serial command control
Symbol definition:
1 (L): left channel audio output
2(G): audio ground
3 (R): right channel audio output
4 (V+) : Short press volume + / long press continuous +
5 (V-): Short press volume - / long press continuous -
6(F+) : Short press a station / long press down to search for a station
7(F-) : Short press the previous station / long press to search for the station
8(P): Short press mute/long press full band search and save station
9 (DM): USB DM cable
10 (DP) : USB DP data cable
11 (TX): TTL serial port sender
12 (RX): TTL serial port receiver
13 (+5V): 5V power input (3-5V wide range)
14(G): power ground
15 (ANT): External FM radio antenna end
FM radio module / button version
Product parameters:
Parameter Minimum Reference Value Maximum Unit
Working temperature -20 25 +70 °C
Storage temperature -30 25 +80 °C
Operating voltage 3.0 5.0 5.5 V
IO voltage -0.3 5.5 V
RF input voltage 0.3 V
Button arrangement diagram:
Rear terminal block diagram:
M radio module / double knob version
Product parameters:
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Output power: 500mW (drive headphones), 3Wx2 (drive speakers)
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Frequency response range: 50Hz-18KHz
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Receiving frequency range:
Turn off campus broadcast 87.0MHz-108.0MHz,
Open campus broadcast 76.0MHz-108.0MHz
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Equivalent noise: ≥30dB
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Supply voltage: 3.0V-5.0V
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Supply current: 1000mA at maximum volume, 60mA at minimum volume (for reference only)
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Channel: Stereo
