Description
What it is
The TPA3118 power amplifier module is a 60W mono digital audio component, powered by a DC voltage between 12V and 24V. This device is designed to provide a wide acoustic power in domestic or industrial environments.
Features
- 60W mono digital audio amplifier TPA318
- DC Power Supply: 12V-24V
What it is for
TPA3118 amplifier modules are ideal for audio projects that require a strong audio output. They are useful in applications such as small FM radio receivers, where the module can be connected to the audio pins of the receiver to amplify the music. The module is compatible with Arduino and other microcontrollers.
Tutorial: How to use TPA3118 BTL 60W Mono Digital Audio Power Board
The TPA3118 module is a powerful amplifier at a low cost, ideal for audio projects that require high power. It suits both beginners and experts in Arduino and electronics in general.
What you need
- Arduino Uno
- USB connection to load the Arduino
- 12V-24V power supply
- jumper wires
Steps
- Connect the TPA3118 module to the 12V-24V power supply using the appropriate cables.
- Connect the VCC and GND pins of the module to the corresponding pins on the Arduino.
- Connect the start switch to pin D2 of the Arduino (check the datasheet for the correct configuration).
- Connect the audio input pins of the module to pins 0 and 1 of the Arduino to receive digital signal.
- Load the Arduino sketch that manages the amplifier (see code below).
- Check the configuration with headphones or a test speaker.
- Adjust the volume through the CV pins of the module and a potentiometer connected to the Arduino.
Example code
void setup() {
pinMode(2, OUTPUT);
}
void loop() {
digitalWrite(2, HIGH); // Avvia l'amplificatore
}
Mini project
Create a small radio with the TPA3118 module and an FM receiver. Connect the audio pins of the receiver to the module to amplify the music.
Common mistakes
- Do not connect the Arduino directly to the power supply without protection.
- Ignore the power supply specifications of the module (check the datasheet).
- Omit the startup connector which may cause damage to the module.
- Use an analog audio input signal without an A/D converter.
Recommended accessories
- 10kΩ potentiometer to adjust the volume
- Prototype breadboards for connections
- Separate ON/OFF switch for power
Frequently asked questions
Can the TPA3118 module handle analog signals?
No, it is designed for digital audio signals.
What is the maximum power I can achieve?
60W mono, but check the datasheet for specific details of your configuration.












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