Module Radio receiver RRD-102 ver.2.0

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FM radio module stereo RRD-102 ver.2.0 based on the RDA5807M chip is used to create projects where you need an FM radio receiver. The RDA5807M can receive RDS/RBDS data, but it needs a good antenna. The range of received frequencies is 50 MHz - 115 MHz, which means that the module can receive stations on half-forgotten VHF waves (ultra-short waves). The module is controlled either from the Arduino controller, or from another microprocessor control device via the IIC interface.

Key Features:

• Supply voltage: 1.8 - 3.3 V
• Frequency band: 50 MHz to 115 MHz
• Configurable step between channels - 200 kHz, 100 kHz, 50 kHz, 25 kHz
• Total Harmonic Distortion: 0.15 - 0.2%
• Ambient temperature: -20 to +75°C
• Operating current consumption: up to 21 mA
• Standby current consumption: 5 μA
• Maximum I2C Frequency: 400KHz
• Module dimensions: 11 x 11 x 2 mm
• Weight: 1g
• Supports RDS/RBDS
• MSOP package (10 pins)
• The frequency synthesizer is fully integrated into the microcircuit
• Management interface: I2C
• Automatic gain control
• Digital Adaptive Noise Reduction
• Support for audio output in both mono and stereo
• Receive signal strength indicator (RSSI) and SNR
• Sound control and mute function
• Bass amplifier for headphones
• Load at the output of the audio channel 32 Ohm
• Built-in LDO controller

Arduino connection diagram:

Module blueprint: