MAX970ESD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, stereo audio amplifier
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Provides amplification and control for audio signals
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Power Supply Voltage Range: 4.5V to 14V
• Output Power: 2 x 1.25W into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.03% (typical) at 1kHz, 1.2W, 8Ω
• Signal-to-Noise Ratio (SNR): 100dB (typical) at 1kHz, 1.2W, 8Ω
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX970ESD has a total of 16 pins, which are assigned as follows:

1. OUT1N: Negative output terminal for Channel 1
2. OUT1P: Positive output terminal for Channel 1
3. GND: Ground
4. VDD: Positive power supply voltage
5. IN1N: Negative input terminal for Channel 1
6. IN1P: Positive input terminal for Channel 1
7. SHDN: Shutdown control input
8. BYPASS: Bypass capacitor connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. IN2P: Positive input terminal for Channel 2
14. IN2N: Negative input terminal for Channel 2
15. OUT2P: Positive output terminal for Channel 2
16. OUT2N: Negative output terminal for Channel 2

Functional Features

• High-quality audio amplification for stereo applications
• Low-power consumption for extended battery life
• Shutdown mode for power-saving when not in use
• Bypass capacitor connection for improved audio performance
• Wide operating temperature range for versatile usage

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Shutdown mode for power-saving - Small package size for space-constrained designs

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

Working Principles

The MAX970ESD is a class AB stereo audio amplifier that utilizes a bridge-tied load (BTL) configuration. It operates by receiving audio input signals through the input terminals, amplifying them, and delivering the amplified signals to the respective output terminals. The amplifier can be controlled using the shutdown input pin, allowing for power-saving when the amplifier is not in use.

Detailed Application Field Plans

The MAX970ESD is suitable for various audio amplification applications, including but not limited to:

1. Portable audio devices such as smartphones, tablets, and MP3 players
2. Home entertainment systems
3. Automotive audio systems
4. Computer sound cards
5. Gaming consoles

Detailed and Complete Alternative Models

1. TPA3116D2: Class D audio amplifier with higher output power and efficiency
2. LM386: Low-power audio amplifier with simple circuitry
3. TDA7294: High-power audio amplifier for demanding applications
4. STA540: Dual-channel audio amplifier with built-in thermal protection

These alternative models offer different features and specifications, catering to specific requirements and preferences of audio system designers.

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