TDA7561H

Product Overview

Category

TDA7561H belongs to the category of integrated circuits (ICs) specifically designed for audio amplification.

Use

The TDA7561H is primarily used in automotive audio systems to amplify audio signals and drive speakers.

Characteristics

• High power output: The TDA7561H can deliver up to 50 watts per channel, making it suitable for high-quality audio applications.
• Multi-channel configuration: This IC supports a four-channel configuration, allowing for stereo or bridge-tied load (BTL) operation.
• Low distortion: The TDA7561H offers low total harmonic distortion (THD), ensuring accurate reproduction of audio signals.
• Thermal protection: It includes built-in thermal protection mechanisms to prevent overheating and ensure safe operation.
• Short-circuit protection: The IC features short-circuit protection to safeguard against potential damage caused by electrical faults.

Package

The TDA7561H is available in a compact and industry-standard HSOP package, which facilitates easy integration into various audio systems.

Essence

The essence of the TDA7561H lies in its ability to provide high-quality audio amplification with low distortion and robust protection mechanisms.

Packaging/Quantity

The TDA7561H is typically packaged in reels or tubes, with a quantity of 25 units per reel/tube.

Specifications

• Power supply voltage range: 8V to 18V
• Output power: 50W per channel (max)
• Total harmonic distortion (THD): <0.05%
• Signal-to-noise ratio (SNR): >90dB
• Operating temperature range: -40°C to +105°C

Detailed Pin Configuration

The TDA7561H features a 27-pin HSOP package with the following pin configuration:

1. OUT1
2. OUT1-
3. OUT2
4. OUT2-
5. GND
6. VCC
7. MUTE
8. ST-BY
9. IN1+
10. IN1-
11. IN2+
12. IN2-
13. IN3+
14. IN3-
15. IN4+
16. IN4-
17. DIAG
18. DIAG
19. DIAG
20. DIAG
21. DIAG
22. DIAG
23. DIAG
24. DIAG
25. DIAG
26. DIAG
27. DIAG

Functional Features

• Four-channel audio amplification: The TDA7561H can amplify four independent audio channels simultaneously.
• Bridge-tied load (BTL) operation: It supports BTL configuration, enabling higher power output for a single channel.
• Mute and standby modes: The IC includes mute and standby functionalities to control audio output when needed.
• Diagnostic features: The TDA7561H incorporates diagnostic pins that provide information about the amplifier's status and potential faults.

Advantages and Disadvantages

Advantages

• High power output capability
• Low distortion for accurate audio reproduction
• Thermal and short-circuit protection mechanisms ensure safe operation
• Compact package for easy integration

Disadvantages

• Limited to automotive audio applications
• Requires external components for complete audio system implementation

Working Principles

The TDA7561H operates as a class AB audio amplifier. It receives low-level audio signals from the input pins and amplifies them to drive speakers. The IC utilizes a combination of internal circuitry and external components to achieve high-quality audio amplification while maintaining low distortion levels.

Detailed Application Field Plans

The TDA7561H is primarily designed for use in automotive audio systems. It can be integrated into car stereos, amplifiers, or other audio devices found in vehicles. Its high power output and low distortion characteristics make it suitable for delivering premium audio experiences in automotive environments.

Detailed and Complete Alternative Models

• TDA7560: Similar to the TDA7561H, but with a lower maximum power output of 45W per channel.
• TDA7850: A four-channel audio amplifier IC with higher power output capability (up to 50W per channel) and additional features such as built-in digital sound processing.

Note: The above alternative models are provided as examples and may not cover all available alternatives in the market.

In conclusion, the TDA7561H is an integrated circuit designed for audio amplification in automotive audio systems. With its high power output, low distortion, and protection mechanisms, it offers a reliable solution for delivering high-quality audio in vehicles.