TDA7267A

Product Overview

Category

TDA7267A belongs to the category of audio amplifier integrated circuits.

Use

It is primarily used for amplifying audio signals in various electronic devices such as televisions, radios, and portable audio players.

Characteristics

• TDA7267A is a dual bridge amplifier with a maximum output power of 20W per channel.
• It operates on a wide supply voltage range of 6V to 18V, making it suitable for different applications.
• The amplifier has low distortion and noise levels, ensuring high-quality audio output.
• It features short-circuit and thermal protection mechanisms, enhancing its reliability and durability.

Package

TDA7267A is available in a compact and industry-standard package known as Multiwatt15. This package provides efficient heat dissipation and ease of integration into various electronic systems.

Essence

The essence of TDA7267A lies in its ability to amplify audio signals with high fidelity and efficiency, enabling clear and powerful sound reproduction.

Packaging/Quantity

TDA7267A is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 6V to 18V
• Output Power: 20W per channel
• Total Harmonic Distortion: <0.5%
• Signal-to-Noise Ratio: >80dB
• Operating Temperature Range: -40°C to +125°C
• Package Type: Multiwatt15

Detailed Pin Configuration

TDA7267A integrates multiple pins that serve different functions. The following is a detailed pin configuration:

1. Mute/Standby (M/S)
2. Non-Inverting Input Channel A (IN+ A)
3. Inverting Input Channel A (IN- A)
4. VCC (Positive Supply Voltage)
5. Non-Inverting Input Channel B (IN+ B)
6. Inverting Input Channel B (IN- B)
7. Output Channel A (OUT A)
8. Ground (GND)
9. Bootstrap Capacitor for Channel A (CB A)
10. Bootstrap Capacitor for Channel B (CB B)
11. Output Channel B (OUT B)
12. Feedback Resistor for Channel A (RF A)
13. Feedback Resistor for Channel B (RF B)
14. Decoupling Capacitor (C1)
15. Decoupling Capacitor (C2)

Functional Features

• Dual bridge amplifier configuration allows independent amplification of two audio channels.
• Mute/Standby pin enables control over the amplifier's operation, providing convenience and power-saving capabilities.
• Short-circuit and thermal protection mechanisms safeguard the amplifier and connected devices from potential damage.
• Wide supply voltage range ensures compatibility with various power sources.
• Low distortion and noise levels result in high-quality audio reproduction.

Advantages and Disadvantages

Advantages

• High output power capability for each channel.
• Compact package size facilitates integration into space-constrained designs.
• Reliable performance due to built-in protection mechanisms.
• Versatile application possibilities across different electronic devices.

Disadvantages

• Limited output power compared to higher wattage amplifiers.
• May require additional external components for optimal performance in certain applications.

Working Principles

TDA7267A operates based on the bridge amplifier topology. It utilizes a combination of differential input signals and power transistors to amplify audio signals. The bridge configuration allows for efficient utilization of the power supply voltage, resulting in increased output power.

The amplifier receives audio signals through the input pins, which are then amplified and delivered to the respective output channels. The feedback resistors help maintain stability and ensure accurate amplification. The mute/standby pin allows control over the amplifier's operation, enabling convenient on/off functionality.

Detailed Application Field Plans

TDA7267A finds applications in various electronic devices that require audio amplification. Some potential application fields include:

1. Televisions and Home Theater Systems: TDA7267A can be used to amplify audio signals in televisions and home theater systems, enhancing the overall sound quality and providing an immersive audio experience.

2. Radios and Audio Players: The amplifier can be integrated into radios and portable audio players, delivering clear and powerful sound output for an enjoyable listening experience.

3. Automotive Audio Systems: TDA7267A can be utilized in automotive audio systems to amplify audio signals from sources such as car radios or mobile devices, ensuring high-quality sound reproduction within the vehicle.

4. Public Address Systems: The amplifier can be employed in public address systems, amplifying audio signals for announcements, speeches, or music playback in various venues such as schools, stadiums, or conference halls.

Detailed and Complete Alternative Models

• TDA7267: Similar to TDA7267A, this model offers the same features and specifications but may have slight