Si4703 FM Radio Tuner Module for Arduino, AVR, PIC, ARM – Wireless RDS Filtering Carrier Board for Seamless Radio Broadcasting Integration

Si4703 FM Radio Tuner Module - Stereo Receiver with RDS Support Integrate FM radio (76–108 MHz) into Arduino/Raspberry Pi projects. Supports RDS data display (station ID/song info) and stereo audio output via 3.5mm jack. Product Parameters Supply Voltage: 3.3V±10% (2.7V–5.5V compatible) Frequency Range: 76–108 MHz (global FM bands) Interface: I²C (2-wire, 400kHz max) / 3-wire (2.5MHz max) Output Power: 150mW (stereo amplifier) Operating Temp: -20°C to +85°C Pin Functions (Hardware Interface Standard) VCC: Power Input (3.3V±10%) GND: Ground SCL: Serial Clock Input (400kHz max) SDA: I²C Data Line (bidirectional) RST: Active-Low Reset (pull low to initialize) GPIO1/GPIO2: General I/O (interrupt/status control) LOUT/ROUT: Stereo Audio Output (to amplifier/headphone jack) FAQs Module not detected via I²C? Ensure RST pin held high during operation. Confirm SDA/SCL voltage matches master (3.3V logic). Poor FM signal reception? Connect headphones to 3.5mm jack as antenna (>3ft cable recommended). Avoid power supply interference. RDS data not displaying? Verify broadcast supports RDS/RBDS. Check GPIO1/GPIO2 interrupt settings for data-ready signals

• 【Complete FM Tuner Solution】Our Si4703 module offers a full FM radio system, transforming radio input into clear stereo output with integrated DSP for symbol decoding and error correction. Suitable for hobbyists and professionals using Arduino, AVR, or PIC microcontrollers, this module simplifies your radio projects with superior performance.
• 【Advanced Audio Processing】Enjoy crystal-clear sound with our module's digital signal processing (DSP) technology, which handles channel selection, FM demodulation, and stereo audio processing. The automatic gain control (AGC) circuit enhances sensitivity and reduces noise, ensuring high-quality audio for all your listening needs.
• 【Seamless Integration】Designed for easy integration, this module features a 3-wire communication interface and IIC compatibility, supporting up to 2.5MHz and 400KHz respectively. Whether you're developing with ARM or microcontrollers, our FM radio module is your Suitable companion for seamless connectivity.
• 【Robust Build with Safety Features】Equipped with a 150mW stereo power amplifier, this module includes thermal and short-circuit protection, plus a 3.5mm headphone jack for versatile usage. Connect to your microcontroller to control volume, perform auto/manual searches, and manage signal strength effortlessly.
• 【Versatile and Reliable】Operating in a wide frequency range of 76 ~ 108MHz, our module is designed to perform in diverse s from -20°C to 85°C. The integrated LDO regulator allows direct battery connection, making this module a reliable choice for all your wireless radio projects.