MAX971CUA-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power audio amplifier
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Amplifies audio signals with high fidelity and efficiency
• Packaging/Quantity: Available in tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Power: 2.3W (typical) into 4Ω load at 5V supply
• Total Harmonic Distortion + Noise (THD+N): 0.04% (typical) at 1kHz, 1.2W output power
• Efficiency: 87% (typical) at 5V supply, 1.2W output power
• Shutdown Current: <1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX971CUA-T features an 8-pin SOIC package with the following pin configuration:

1. SHDN (Shutdown): Controls the amplifier's power state. Active-low input.
2. GND (Ground): Ground reference for the amplifier.
3. IN- (Negative Input): Non-inverting input for the audio signal.
4. IN+ (Positive Input): Inverting input for the audio signal.
5. VDD (Supply Voltage): Positive supply voltage for the amplifier.
6. OUT (Output): Amplified audio output.
7. BYP (Bypass): Bypass capacitor connection for improved stability.
8. FB (Feedback): Feedback connection for gain control.

Functional Features

• High-Fidelity Audio Amplification: Provides clear and accurate sound reproduction.
• Low-Power Consumption: Efficiently amplifies audio signals while minimizing power usage.
• Shutdown Mode: Allows for power-saving when the amplifier is not in use.
• Thermal and Short-Circuit Protection: Safeguards the amplifier from damage.
• Wide Supply Voltage Range: Enables flexibility in various audio applications.

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Compact package size - Thermal and short-circuit protection

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for complete audio system integration

Working Principles

The MAX971CUA-T is a class AB audio amplifier that operates by amplifying low-level audio signals using a combination of voltage and current amplification stages. It utilizes a feedback mechanism to maintain accurate gain control and minimize distortion. The amplifier's shutdown mode reduces power consumption when not in use, extending battery life in portable audio devices.

Detailed Application Field Plans

The MAX971CUA-T is suitable for a wide range of audio applications, including but not limited to: - Portable speakers - Headphone amplifiers - Home audio systems - Automotive audio systems - Multimedia devices

Alternative Models

For alternative options with similar functionality, consider the following models: - MAX97220A: 2.5W Audio Power Amplifier - LM386: Low Voltage Audio Power Amplifier - TPA3116D2: 50W Stereo Class D Audio Amplifier

These alternatives offer varying power outputs and features to cater to different application requirements.

In conclusion, the MAX971CUA-T is a high-performance, low-power audio amplifier that provides clear and efficient audio amplification. With its compact package and versatile application possibilities, it is an ideal choice for various audio systems and portable devices.