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Current Sensor ACS712 30A
1 × ₹100.00
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Sensor Boards And Modules
Pam8403 Amplifier Module
The PAM8403 Amplifier Module is a 2-channel, 3W, class-D audio amplifier. It features low harmonic distortion and high efficiency, making it ideal for adding audio capabilities to projects like MP3 players, portable speakers, and DIY audio systems
₹25.00 exc. GST
The PAM8403 Amplifier Module is a compact, efficient, and versatile 2-channel audio amplifier designed for delivering high-quality audio amplification in a variety of electronic projects. This module uses Class-D amplification, which ensures high efficiency and low heat generation, making it ideal for portable and battery-powered applications. Here’s a detailed description:
Working Principle:
The PAM8403 Amplifier module operates using Class-D audio amplification technology. In Class-D amplifiers, the input audio signal is converted into a series of high-frequency pulses, which are then amplified and filtered to produce the amplified audio output. This method significantly improves efficiency by reducing power loss as heat, allowing the amplifier to deliver more power to the load (speakers) with minimal energy consumption.
Key Features:
Output Power: Delivers up to 3W per channel (2 channels) into a 4-ohm load, providing ample power for small speakers.
High Efficiency: Achieves efficiency greater than 90%, minimizing heat generation and power loss.
Low Harmonic Distortion: Maintains audio fidelity with a total harmonic distortion (THD) of less than 0.1%, ensuring clear and high-quality sound.
Wide Operating Voltage: Operates within a supply voltage range of 2.5V to 5.5V, making it compatible with USB power supplies and battery packs.
Compact Size: Small form factor allows for easy integration into various projects without taking up much space.
Built-In Shutdown Feature: Includes a shutdown pin for controlling the power state of the module, enabling low-power standby mode.
Onboard Volume Control: Some versions of the module feature an onboard potentiometer for adjusting the output volume.
Thermal Protection: Equipped with thermal protection to prevent overheating and ensure reliable operation.
Technical Specifications:
Output Power: 3W per channel (2 channels) into a 4-ohm load, 1.8W per channel into an 8-ohm load
Efficiency: Greater than 90%
Total Harmonic Distortion (THD): Less than 0.1% at 1kHz
Signal-to-Noise Ratio (SNR): Greater than 80dB
Operating Voltage: 2.5V to 5.5V
Quiescent Current: Less than 20mA
Shutdown Current: Less than 1µA
Dimensions: Approximately 21mm x 18mm x 3.5mm
Applications:
Portable Speakers: Ideal for creating compact and portable speaker systems with high-quality audio output.
DIY Audio Projects: Suitable for hobbyists and makers building custom audio amplifiers, sound systems, and other audio-related projects.
MP3 Players: Enhances audio output in MP3 players and other portable music devices.
Headphone Amplifiers: Provides amplification for headphone output, ensuring clear and powerful audio.
Educational Kits: Used in educational electronics kits to teach principles of audio amplification and electronics.
Home Automation: Integrated into smart home devices for audio output, such as smart doorbells and voice assistants.
Robotics: Used in robots that require audio feedback or communication through speakers.
Advantages:
High Efficiency: Class-D amplification ensures minimal power loss and low heat generation, making it suitable for battery-operated devices.
Compact and Lightweight: Small size and low weight allow for easy integration into space-constrained projects.
High-Quality Audio: Delivers clear and distortion-free sound with low harmonic distortion and high signal-to-noise ratio.
Versatile Applications: Suitable for a wide range of audio applications, from portable speakers to educational projects.
Easy Integration: Simple to connect and use with minimal external components required, facilitating quick and easy project development.
Cost-Effective: Provides a budget-friendly solution for adding audio amplification to various projects.
Limitations:
Power Output: The 3W per channel output may not be sufficient for high-power audio applications, requiring larger amplifiers for such use.
Supply Voltage: Requires a stable power supply within the specified voltage range to ensure reliable operation.
Speaker Compatibility: Optimal performance is achieved with 4-ohm speakers; higher impedance speakers may result in lower output power.
The PAM8403 Amplifier Module is an excellent choice for anyone needing efficient and high-quality audio amplification in their projects. Its combination of high efficiency, low harmonic distortion, compact size, and versatile applications makes it a valuable addition to any toolkit.
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