TEA5767 FM Radio Receiver Module – User’s Guide

Overview

The TEA5767 is a low-voltage, single-chip FM stereo radio receiver. It communicates via I²C, making it ideal for integration with microcontrollers like Arduino, STM32, ESP32, and others. It supports frequencies from 87.5 MHz to 108 MHz, and includes built-in IF selectivity and demodulation.

Key Features

• Frequency Range: 87.5 MHz – 108 MHz
• Control Interface: I²C (SDA/SCL)
• Audio Output: Stereo via 3.5mm jack or AUX pins
• Power Supply: 3.3V to 5V
• Tuning Resolution: 100 kHz steps
• Built-in: Low-noise amplifier, stereo decoder, and mute control

Pinout Reference

Wiring Example (Arduino Mega)

Initialization Code (Arduino)

#include <Wire.h>

void setup() {
  Wire.begin(); // Initialize I2C
  Serial.begin(9600);
  setFrequency(101.1); // Set to 101.1 MHz
}

void loop() {
  // Add station scanning or mute logic here
}

void setFrequency(float freq) {
  uint16_t frequencyB = (freq * 1000000 + 225000) / 8192;
  Wire.beginTransmission(0x60);
  Wire.write(frequencyB >> 8);
  Wire.write(frequencyB & 0xFF);
  Wire.write(0xB0); // High side injection
  Wire.write(0x10); // Mute off
  Wire.write(0x00); // No standby
  Wire.endTransmission();
}

Usage Tips

• Use a 75cm insulated wire as an antenna for better reception.
• For stereo output, connect LOUT/ROUT to an amplifier or headphones.
• Avoid long I²C cables to reduce noise.
• You can scan stations by incrementing the frequency in 0.1 MHz steps.

Advanced Integration Ideas

• Pair with an OLED or TFT display for station feedback.
• Use rotary encoders or buttons for manual tuning.
• Integrate with ESP32 for Wi-Fi streaming or remote control.
• Add EEPROM to store last tuned frequency on power-off.