MAX9722AEUE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: 16-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.2W per channel into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise (THD+N): 0.04% at 1kHz, 1.2W output power
• Efficiency: Up to 87%
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9722AEUE+T has a total of 16 pins, each serving a specific function:

1. SHDN: Shutdown Control Input
2. GND: Ground
3. INL+: Left Channel Positive Input
4. INL-: Left Channel Negative Input
5. BYP: Bypass Capacitor Connection
6. VDD: Positive Power Supply
7. OUTL: Left Channel Output
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. OUTR: Right Channel Output
13. INR-: Right Channel Negative Input
14. INR+: Right Channel Positive Input
15. VDD: Positive Power Supply
16. GND: Ground

Functional Features

• Low quiescent current consumption for extended battery life
• Wide supply voltage range allows compatibility with various power sources
• High output power capability for driving a wide range of speakers
• Integrated thermal and short-circuit protection for enhanced reliability
• Bypass capacitor connection for improved audio performance

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low power consumption - Compact form factor - Thermal and short-circuit protection

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external bypass capacitor for optimal performance

Working Principles

The MAX9722AEUE+T is a class AB stereo audio amplifier that operates on a low supply voltage. It utilizes a bridge-tied load (BTL) configuration to provide high-quality audio amplification. The amplifier receives audio input signals through the INL+ and INR+ pins for the left and right channels, respectively. These signals are then amplified and delivered to the corresponding speaker outputs (OUTL and OUTR).

The amplifier's shutdown control input (SHDN) allows for power-saving operation by disabling the amplifier when not in use. The BYP pin is used to connect an external bypass capacitor, which helps improve audio performance by reducing noise and enhancing stability.

Detailed Application Field Plans

The MAX9722AEUE+T is commonly used in various audio applications, including:

1. Portable Audio Devices: Provides high-quality audio amplification for smartphones, tablets, and portable media players.
2. Headphone Amplifiers: Drives headphones with sufficient power and delivers clear and dynamic sound.
3. Multimedia Systems: Enhances the audio output of multimedia devices such as laptops, TVs, and gaming consoles.
4. Automotive Audio Systems: Amplifies audio signals in car audio systems, delivering immersive sound quality.
5. Home Theater Systems: Powers speakers in home theater setups, ensuring rich and immersive audio experiences.

Detailed and Complete Alternative Models

1. MAX9722AETE+T: Similar to MAX9722AEUE+T but available in a 16-pin TQFN (Thin Quad Flat No-Lead) package.
2. MAX9722AETE/V+: Variant of MAX9722AETE+T with an extended temperature range (-40°C to +125°C).
3. MAX9722AETE/V+T: Combination of MAX9722AETE/V+ and MAX9722AEUE+T, offering extended temperature range and TQFN package.

These alternative models provide similar functionality and performance characteristics, allowing users to choose the most suitable option based on their specific requirements.

In conclusion, the MAX9722AEUE+T is a high-performance audio amplifier IC that offers low power consumption, compact size, and excellent audio quality. Its versatility makes it suitable for various applications, ranging from portable audio devices to home theater systems. With its integrated protection features and wide supply voltage range, the MAX9722AEUE+T provides a reliable and efficient solution for audio amplification needs.