MAX218CPP

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, stereo audio amplifier
• Package: 20-pin DIP (Dual Inline Package)
• Essence: MAX218CPP is a high-quality audio amplifier designed for stereo applications.
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier.

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: 1.25W per channel into 8Ω load at 5V supply voltage
• Total Harmonic Distortion + Noise: 0.08% (typical) at 1kHz, 1W output power
• Signal-to-Noise Ratio: 90dB (typical) at 1kHz, 1W output power
• Shutdown Current: 0.4μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX218CPP has a total of 20 pins. The pin configuration is as follows:

1. OUTL-: Negative terminal of the left audio channel output
2. OUTL+: Positive terminal of the left audio channel output
3. GND: Ground reference
4. VDD: Positive power supply voltage
5. BYPASS: Bypass capacitor connection for internal voltage regulator
6. SHDN: Shutdown control input
7. INL-: Negative terminal of the left audio channel input
8. INL+: Positive terminal of the left audio channel input
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. INR+: Positive terminal of the right audio channel input
17. INR-: Negative terminal of the right audio channel input
18. VDD: Positive power supply voltage
19. GND: Ground reference
20. OUTR+: Positive terminal of the right audio channel output
21. OUTR-: Negative terminal of the right audio channel output

Functional Features

• High-quality stereo audio amplification
• Low-power consumption
• Wide operating voltage range
• Shutdown control for power saving
• Internal voltage regulator with bypass option
• Thermal and short-circuit protection

Advantages and Disadvantages

Advantages

• High-performance audio amplification
• Low power consumption
• Compact package size
• Wide operating voltage range
• Shutdown control for power saving

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Not suitable for high-power audio applications

Working Principles

The MAX218CPP is a class AB audio amplifier that utilizes a combination of analog and digital circuitry to amplify stereo audio signals. It operates by receiving audio input signals through the left and right audio channels, amplifying them, and then delivering the amplified signals to the respective output channels. The internal voltage regulator ensures stable operation within the specified voltage range.

Detailed Application Field Plans

The MAX218CPP is commonly used in various audio applications, including:

1. Portable audio devices
2. Headphone amplifiers
3. Multimedia speakers
4. Automotive audio systems
5. Home theater systems

Alternative Models

Here are some alternative models that can be considered as alternatives to the MAX218CPP:

1. TDA7266 - Dual Bridge Audio Amplifier
2. LM386 - Low Voltage Audio Power Amplifier
3. TPA3116D2 - Class D Audio Amplifier
4. STA540 - 4-Channel Audio Amplifier

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the MAX218CPP is a high-performance, low-power stereo audio amplifier that provides excellent audio amplification in various applications. Its compact package, wide operating voltage range, and power-saving features make it a popular choice among audio enthusiasts. However, it has limitations in terms of output power compared to higher wattage amplifiers. Users can consider alternative models based on their specific needs and preferences.