MAX989EUA+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX989EUA+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for audio signal processing and amplification.

Characteristics

• The MAX989EUA+ is a low-power, stereo audio amplifier.
• It operates on a single power supply voltage.
• It has a wide input voltage range and high output power capability.
• This IC offers excellent audio quality with low distortion and noise.

Package

The MAX989EUA+ is available in a small 8-pin µMAX package.

Essence

The essence of MAX989EUA+ lies in its ability to amplify and process audio signals efficiently and with high fidelity.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 500mW per channel
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX989EUA+ features the following pin configuration:

1. INL- (Left Channel Negative Input)
2. INL+ (Left Channel Positive Input)
3. GND (Ground)
4. VCC (Power Supply)
5. OUTL (Left Channel Output)
6. INR- (Right Channel Negative Input)
7. INR+ (Right Channel Positive Input)
8. OUTR (Right Channel Output)

Functional Features

• Low-power consumption for extended battery life in portable devices.
• Wide input voltage range allows compatibility with various audio sources.
• Built-in thermal and short-circuit protection for reliable operation.
• Internal gain setting options for flexible audio amplification.

Advantages and Disadvantages

Advantages

• High-quality audio amplification with low distortion and noise.
• Wide operating voltage range for versatile applications.
• Compact package size for space-constrained designs.
• Integrated thermal and short-circuit protection for enhanced reliability.

Disadvantages

• Limited output power compared to higher wattage amplifiers.
• May require additional external components for specific applications.

Working Principles

The MAX989EUA+ operates as a stereo audio amplifier by receiving analog audio signals from the input pins (INL+/INL- and INR+/INR-) and amplifying them to a higher power level. The amplified audio signals are then available at the output pins (OUTL and OUTR) for further processing or driving speakers.

Detailed Application Field Plans

The MAX989EUA+ finds application in various electronic devices, including but not limited to: - Portable audio players - Mobile phones - Tablets and laptops - Home theater systems - Automotive audio systems

Detailed and Complete Alternative Models

1. MAX97220 - Stereo Class D Audio Power Amplifier
2. LM386 - Low Voltage Audio Power Amplifier
3. TPA3116D2 - 50W Stereo Class D Audio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the MAX989EUA+ depending on specific requirements and design constraints.

In conclusion, the MAX989EUA+ is a low-power stereo audio amplifier IC that provides high-quality audio amplification with low distortion and noise. Its compact size, wide operating voltage range, and built-in protection features make it suitable for various audio applications in portable devices, home theaters, and automotive systems.