TPA4861D

Product Overview

Category: Audio Amplifier
Use: The TPA4861D is a high-performance audio amplifier designed for use in various audio applications.
Characteristics: This amplifier offers excellent sound quality, low distortion, and high efficiency. It is capable of delivering high power output while maintaining low power consumption.
Package: The TPA4861D comes in a compact and robust package, making it suitable for space-constrained applications.
Essence: The essence of the TPA4861D lies in its ability to provide high-quality audio amplification with minimal power consumption.
Packaging/Quantity: The TPA4861D is available in a standard package and is typically sold in quantities of 100 or more.

Specifications

• Power Supply Voltage: 2.5V - 5.5V
• Output Power: Up to 3W
• Total Harmonic Distortion (THD): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The TPA4861D has the following pin configuration:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. IN+: Positive audio input
4. IN-: Negative audio input
5. SHUTDOWN: Shutdown control input
6. OUT: Audio output

Functional Features

• Low power consumption
• High power output capability
• Wide operating voltage range
• Thermal and short-circuit protection
• Shutdown mode for power saving

Advantages and Disadvantages

Advantages: - Excellent sound quality - Low distortion - High efficiency - Compact size - Robust packaging

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional components for certain applications

Working Principles

The TPA4861D operates as a class-D audio amplifier. It utilizes pulse-width modulation (PWM) techniques to convert the input audio signal into a high-frequency square wave. This square wave is then filtered and amplified to produce the desired audio output.

Detailed Application Field Plans

The TPA4861D can be used in various audio applications, including:

1. Portable speakers
2. Headphones
3. Home theater systems
4. Automotive audio systems
5. Multimedia devices

Detailed and Complete Alternative Models

1. TPA4860D: Similar to TPA4861D but with lower output power.
2. TPA4862D: Similar to TPA4861D but with higher output power.
3. TPA4863D: Similar to TPA4861D but with additional features such as built-in equalization.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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