TDA7264 - English Editing Encyclopedia Entry

Introduction

The TDA7264 is an integrated circuit (IC) that belongs to the category of audio amplifiers. It is widely used in various audio applications due to its excellent performance and versatility. This encyclopedia entry provides a comprehensive overview of the TDA7264, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Audio Amplifier IC
• Use: Amplification of audio signals
• Characteristics:
  • High power output capability
  • Low distortion
  • Wide frequency response
  • Built-in thermal protection
• Package: Multiwatt15V package
• Essence: Power amplifier for audio applications
• Packaging/Quantity: Typically sold in reels or tubes containing multiple units

Specifications

• Supply Voltage Range: 8V to 18V
• Output Power: Up to 25W per channel
• Total Harmonic Distortion (THD): <0.5%
• Frequency Response: 20Hz to 20kHz
• Operating Temperature Range: -40°C to +150°C
• Input Sensitivity: 1V RMS

Detailed Pin Configuration

The TDA7264 has a total of 15 pins, which are assigned specific functions as follows:

1. Mute/Standby
2. Non-Inverting Input Channel A
3. Inverting Input Channel A
4. Bootstrap Capacitor Channel A
5. Output Channel A
6. Ground
7. VCC (Positive Supply Voltage)
8. Non-Inverting Input Channel B
9. Inverting Input Channel B
10. Bootstrap Capacitor Channel B
11. Output Channel B
12. Thermal Protection
13. Mute/Standby
14. Non-Inverting Input Channel C
15. Inverting Input Channel C

Functional Features

• Multiwatt15V package for efficient heat dissipation
• Built-in thermal protection to prevent overheating
• Mute/Standby function for power saving and audio muting
• Three independent amplifier channels (A, B, and C)
• High output power capability for driving speakers with ease
• Low distortion and wide frequency response for high-quality audio reproduction

Advantages and Disadvantages

Advantages: - High power output allows for loud and clear audio playback. - Low distortion ensures accurate sound reproduction. - Wide frequency response captures a broad range of audio frequencies. - Built-in thermal protection prevents damage due to excessive heat.

Disadvantages: - Requires an external power supply within the specified voltage range. - Limited number of amplifier channels compared to some other ICs. - May require additional circuitry for advanced audio processing features.

Working Principles

The TDA7264 operates as a class AB audio amplifier. It amplifies low-level audio signals received at the input pins and delivers them to the corresponding output channels. The built-in thermal protection monitors the temperature and activates when it exceeds a certain threshold, safeguarding the IC from overheating.

Detailed Application Field Plans

The TDA7264 finds applications in various audio systems, including but not limited to: 1. Home theater systems 2. Car audio systems 3. Portable speakers 4. Audio amplification for musical instruments 5. Public address systems

Detailed and Complete Alternative Models

1. TDA7265: Similar to TDA7264, but with higher output power capability.
2. TDA7266: Dual bridge amplifier IC with four independent channels.
3. TDA7297: Dual audio amplifier IC with built-in volume control.

These alternative models offer different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

In conclusion, the TDA7264 is a versatile audio amplifier IC that offers high power output, low distortion, and wide frequency response. Its built-in thermal protection ensures reliable operation even under demanding conditions. With its various applications and alternative models available, the TDA7264 remains a popular choice for audio amplification needs.

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