MAX9890AEBL+T

Overview

• Category: Integrated Circuit
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, stereo audio amplifier
• Package: 20-pin TQFN (Thin Quad Flat No-Lead)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.4W per channel
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9890AEBL+T features a detailed and complete pin configuration as follows:

1. VDD
2. GND
3. SD
4. SHDN
5. INL-
6. INL+
7. BYP
8. OUTL
9. OUTR
10. BYN
11. INR+
12. INR-
13. BIAS
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC

Functional Characteristics

• High-efficiency Class D operation
• Differential inputs for improved noise rejection
• Built-in thermal and short-circuit protection
• Low quiescent current for power-saving applications
• Flexible gain settings and volume control options

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Compact package size - Wide supply voltage range - Low total harmonic distortion - Efficient power consumption

Disadvantages: - Limited number of available pins for additional features - May require external components for specific applications

Applicable Range of Products

The MAX9890AEBL+T is suitable for a wide range of audio amplification applications, including: - Portable devices (smartphones, tablets, portable media players) - Consumer electronics (TVs, gaming consoles, home theater systems) - Automotive infotainment systems - Industrial and professional audio equipment

Working Principles

The MAX9890AEBL+T utilizes Class D amplifier technology to efficiently amplify audio signals. It converts the input analog audio signal into a high-frequency pulse-width modulated (PWM) signal. This PWM signal is then filtered and amplified to drive the connected speakers or headphones.

Detailed Application Field Plans

1. Portable Audio Devices: The MAX9890AEBL+T can be used in smartphones and portable media players to enhance audio output quality and volume.
2. Home Theater Systems: Incorporating the MAX9890AEBL+T in home theater systems can provide high-fidelity audio amplification for an immersive entertainment experience.
3. Automotive Infotainment: By integrating the MAX9890AEBL+T into car audio systems, clear and powerful audio can be delivered to the vehicle's occupants.
4. Professional Audio Equipment: The MAX9890AEBL+T can be utilized in mixers, amplifiers, and other professional audio equipment to ensure accurate sound reproduction.

Detailed Alternative Models

1. MAX98357A: Similar audio amplifier with I2S interface for easy integration with digital audio sources.
2. TPA3116D2: Class D audio amplifier with higher output power and additional features like integrated volume control.
3. LM386: Low-cost audio amplifier with simpler circuitry suitable for basic audio amplification needs.

5 Common Technical Questions and Answers

1. Q: What is the maximum output power of the MAX9890AEBL+T? A: The MAX9890AEBL+T can deliver up to 1.4W of power per channel.

2. Q: Can the MAX9890AEBL+T operate with a supply voltage below 2.7V? A: No, the recommended supply voltage range for the MAX9890AEBL+T is 2.7V to 5.5V.

3. Q: Does the MAX9890AEBL+T require external thermal protection? A: No, the MAX9890AEBL+T has built-in thermal protection to prevent overheating.

4. Q: Can I use the MAX9890AEBL+T in automotive applications? A: Yes, the MAX9890AEBL+T is suitable for automotive infotainment systems.

5. Q: Are there any volume control options available on the MAX9890AEBL+T? A: Yes, the MAX9890AEBL+T provides flexible gain settings and volume control options.

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