MAX9750AEUI+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX9750AEUI+ belongs to the category of integrated audio amplifiers.

Use

It is primarily used for audio amplification in various electronic devices such as smartphones, tablets, laptops, and portable audio players.

Characteristics

• High-quality audio amplification
• Low power consumption
• Compact size
• Wide input voltage range
• Thermal and short-circuit protection

Package

The MAX9750AEUI+ comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of the MAX9750AEUI+ lies in its ability to provide efficient and high-quality audio amplification in a compact form factor.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 2.8W per channel
• Total Harmonic Distortion + Noise (THD+N): 0.03% (typical)
• Signal-to-Noise Ratio (SNR): 95dB (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9750AEUI+ has a total of 16 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. SD - Shutdown control input
4. INL - Left channel audio input
5. INR - Right channel audio input
6. BYP - Bypass capacitor connection
7. AGND - Analog ground
8. OUTL - Left channel audio output
9. OUTR - Right channel audio output
10. FB - Feedback resistor connection
11. VDD - Power supply voltage
12. GND - Ground
13. MUTE - Mute control input
14. LIN - Left channel input for differential mode
15. RIN - Right channel input for differential mode
16. BYP - Bypass capacitor connection

Functional Features

• High-efficiency Class D amplifier architecture
• Integrated shutdown and mute control
• Differential audio inputs for improved noise rejection
• Short-circuit and thermal protection
• Low quiescent current

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into various electronic devices
• High-quality audio amplification with low distortion
• Wide input voltage range enables compatibility with different power sources
• Efficient power consumption prolongs battery life in portable devices

Disadvantages

• Limited output power compared to larger audio amplifiers
• May require additional external components for optimal performance

Working Principles

The MAX9750AEUI+ utilizes a Class D amplifier architecture, which efficiently converts the input audio signal into a high-power output signal. It achieves this by rapidly switching the output stage between two states: on and off. This switching action minimizes power dissipation and improves overall efficiency.

Detailed Application Field Plans

The MAX9750AEUI+ finds applications in various electronic devices where audio amplification is required. Some potential application fields include:

1. Mobile phones and smartphones
2. Tablets and laptops
3. Portable audio players
4. Bluetooth speakers
5. Gaming consoles
6. Automotive infotainment systems

Detailed and Complete Alternative Models

1. MAX9744 - Similar audio amplifier with higher output power capabilities
2. MAX98357A - Audio amplifier with integrated digital-to-analog converter (DAC)
3. TPA3116D2 - Class D audio amplifier with advanced features and higher output power

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

In conclusion, the MAX9750AEUI+ is a compact and efficient audio amplifier that provides high-quality audio amplification for various electronic devices. Its wide input voltage range, low power consumption, and integrated protection features make it an ideal choice for applications requiring audio amplification.