TDA7564B - English Editing Encyclopedia Entry

Introduction

The TDA7564B is a highly versatile integrated circuit (IC) that belongs to the category of audio power amplifiers. It is widely used in various audio applications due to its exceptional performance and reliability. This encyclopedia entry provides an overview of the TDA7564B, 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 Power Amplifier
• Use: The TDA7564B is primarily used for amplifying audio signals in automotive sound systems.
• Characteristics:
  • High output power capability
  • Low distortion and noise levels
  • Wide frequency response range
  • Efficient power consumption
• Package: The TDA7564B is available in a multiwatt15 package, which ensures easy installation and thermal dissipation.
• Essence: The TDA7564B is designed to deliver high-quality audio amplification with minimal distortion, making it suitable for demanding automotive audio applications.
• Packaging/Quantity: The TDA7564B is typically sold in reels or tubes, with a quantity of 25 units per reel/tube.

Specifications

• Maximum Supply Voltage: 18V
• Output Power: 50W per channel (RMS) into 4 ohms at 14.4V supply voltage
• Total Harmonic Distortion: <0.05% (1kHz, 10W)
• Signal-to-Noise Ratio: >90dB
• Operating Temperature Range: -40°C to +105°C

Detailed Pin Configuration

The TDA7564B features a 23-pin package with the following pin configuration:

1. MUTE
2. IN1-
3. IN1+
4. GND
5. VCC
6. OUT1
7. OUT2
8. OUT3
9. OUT4
10. DIAG
11. DIAG
12. DIAG
13. DIAG
14. DIAG
15. DIAG
16. DIAG
17. DIAG
18. DIAG
19. DIAG
20. DIAG
21. DIAG
22. DIAG
23. DIAG

Functional Features

• Built-in protection circuits: The TDA7564B incorporates various protection mechanisms, including thermal shutdown, overvoltage protection, and short-circuit protection, ensuring the safety and longevity of the device.
• High output power capability: With a maximum output power of 50W per channel, the TDA7564B can deliver robust audio performance in automotive sound systems.
• Flexible input configuration: The IC supports both single-ended and differential inputs, providing compatibility with different audio sources.
• Low distortion and noise levels: The TDA7564B maintains excellent audio fidelity by minimizing distortion and noise, resulting in clear and immersive sound reproduction.

Advantages and Disadvantages

Advantages: - High output power capability enables powerful audio amplification. - Wide operating temperature range allows for reliable performance in various environments. - Built-in protection circuits ensure the safety of the device and connected audio components.

Disadvantages: - Limited to automotive audio applications, limiting its versatility in other domains. - Requires proper heat dissipation due to high power output.

Working Principles

The TDA7564B operates as a class AB audio power amplifier. It amplifies low-level audio signals received from the input stage and delivers them to the output stage, which drives the connected speakers. The IC utilizes a combination of voltage and current amplification techniques to achieve high-quality audio amplification with minimal distortion.

Detailed Application Field Plans

The TDA7564B finds extensive application in automotive sound systems, including car stereos, amplifiers, and audio head units. Its high output power capability and low distortion make it suitable for delivering immersive audio experiences in vehicles.

Detailed and Complete Alternative Models

• TDA7560: Similar to the TDA7564B, but with a lower maximum supply voltage of 16V.
• TDA7850: Offers higher output power (50W per channel) and additional features such as built-in digital sound processing.

In conclusion, the TDA7564B is a highly capable audio power amplifier designed specifically for automotive sound systems. With its high output power, low distortion, and built-in protection circuits, it ensures excellent audio performance and reliability. While primarily used in automotive applications, alternative models like the TDA7560 and TDA7850 offer variations in specifications and features to cater to different requirements.