TDA7480L

Product Overview

Category

TDA7480L belongs to the category of integrated audio amplifier circuits.

Use

It is primarily used for amplifying audio signals in various electronic devices such as televisions, radios, and home theater systems.

Characteristics

• TDA7480L is a monolithic class D audio amplifier.
• It operates on a single power supply voltage ranging from 8V to 26V.
• The amplifier has a high efficiency of up to 90%.
• It offers low distortion and noise levels, ensuring high-quality audio output.
• TDA7480L features short-circuit and thermal protection mechanisms, enhancing its reliability.

Package

The TDA7480L is available in a compact and industry-standard package known as PowerSO-36. This package ensures easy integration into various electronic devices.

Essence

The essence of TDA7480L lies in its ability to provide efficient and high-quality audio amplification while maintaining low power consumption.

Packaging/Quantity

TDA7480L is typically sold in reels or tubes containing a specific quantity of integrated circuits. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage: 8V to 26V
• Output Power: Up to 25W per channel
• Total Harmonic Distortion (THD): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TDA7480L integrates multiple pins that serve different functions. Here is a detailed pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. IN1: Audio input channel 1
4. IN2: Audio input channel 2
5. MUTE: Mute control input
6. STBY: Standby control input
7. OUT1: Amplified audio output channel 1
8. OUT2: Amplified audio output channel 2
9. VCC: Power supply voltage input
10. GND: Ground reference

Functional Features

• Class D Amplification: TDA7480L utilizes class D amplification technology, ensuring high efficiency and low power consumption.
• Short-Circuit Protection: The amplifier incorporates a built-in short-circuit protection mechanism, safeguarding the circuit from damage in case of a short circuit.
• Thermal Protection: TDA7480L includes thermal protection to prevent overheating, enhancing its reliability and longevity.
• Mute and Standby Control: The amplifier offers mute and standby control inputs, allowing for convenient operation and power management.

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption.
• Low distortion and noise levels ensure superior audio quality.
• Integrated short-circuit and thermal protection mechanisms enhance reliability.
• Compact package facilitates easy integration into various electronic devices.

Disadvantages

• Limited output power compared to higher wattage amplifiers.
• May require additional components for optimal performance in complex audio systems.

Working Principles

TDA7480L operates on the principle of class D amplification. It converts the incoming analog audio signal into a pulse-width modulated (PWM) signal. This PWM signal is then amplified using switching transistors, resulting in an amplified audio output. The class D amplification technique employed by TDA7480L ensures high efficiency and low power dissipation.

Detailed Application Field Plans

TDA7480L finds applications in various electronic devices that require audio amplification. Some potential application fields include:

1. Televisions and Home Theater Systems: TDA7480L can be used to amplify audio signals in televisions and home theater systems, delivering immersive sound experiences.
2. Radios and Audio Systems: It is suitable for amplifying audio signals in radios and audio systems, enhancing the overall audio quality.
3. Portable Speakers: TDA7480L can be integrated into portable speakers, providing efficient amplification while maintaining low power consumption.

Detailed and Complete Alternative Models

1. TDA7498E: This class D audio amplifier offers higher output power and improved signal-to-noise ratio compared to TDA7480L.
2. TPA3116D2: Another popular class D audio amplifier with a wide supply voltage range and excellent audio performance.
3. LM3886: A high-performance audio amplifier with a robust design and low distortion levels.

These alternative models provide different features and specifications, catering to diverse application requirements.

In conclusion, TDA7480L is a monolithic class D audio amplifier circuit that offers high efficiency, low distortion, and reliable performance. Its compact package and versatile characteristics make it suitable for various electronic devices requiring audio amplification.