MAX9791AETI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, stereo audio amplifier
• Package: 28-pin TQFN (Thin Quad Flat No-Lead) package
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Power Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 3W per channel
• Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1W into 8Ω
• Signal-to-Noise Ratio (SNR): 100dB
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9791AETI+T has a total of 28 pins. The pin configuration is as follows:

1. SDN (Shutdown) - Active-low shutdown control input
2. GND (Ground) - Ground reference
3. INL- (Left Channel Negative Input) - Negative input for the left audio channel
4. INL+ (Left Channel Positive Input) - Positive input for the left audio channel
5. VDD (Power Supply) - Positive power supply voltage
6. BYP (Bypass Capacitor) - Bypass capacitor connection
7. OUTL (Left Channel Output) - Output for the left audio channel
8. OUTR (Right Channel Output) - Output for the right audio channel
9. INR+ (Right Channel Positive Input) - Positive input for the right audio channel
10. INR- (Right Channel Negative Input) - Negative input for the right audio channel
11. GND (Ground) - Ground reference
12. AGND (Analog Ground) - Analog ground reference
13. VDD (Power Supply) - Positive power supply voltage
14. BYP (Bypass Capacitor) - Bypass capacitor connection
15. OUTL (Left Channel Output) - Output for the left audio channel
16. OUTR (Right Channel Output) - Output for the right audio channel
17. INR+ (Right Channel Positive Input) - Positive input for the right audio channel
18. INR- (Right Channel Negative Input) - Negative input for the right audio channel
19. GND (Ground) - Ground reference
20. AGND (Analog Ground) - Analog ground reference
21. VDD (Power Supply) - Positive power supply voltage
22. BYP (Bypass Capacitor) - Bypass capacitor connection
23. OUTL (Left Channel Output) - Output for the left audio channel
24. OUTR (Right Channel Output) - Output for the right audio channel
25. INR+ (Right Channel Positive Input) - Positive input for the right audio channel
26. INR- (Right Channel Negative Input) - Negative input for the right audio channel
27. GND (Ground) - Ground reference
28. SDN (Shutdown) - Active-low shutdown control input

Functional Features

• High-quality stereo audio amplification
• Low-power consumption
• Wide power supply voltage range
• Shutdown mode for power saving
• Thermal and short-circuit protection

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Compact package size - Wide operating temperature range - Low total harmonic distortion and noise - High signal-to-noise ratio

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for proper operation

Working Principles

The MAX9791AETI+T is a stereo audio amplifier that operates by amplifying the input audio signals received through the left and right channel inputs. It utilizes a low-power architecture to provide efficient amplification while maintaining high audio quality. The amplifier can be controlled using the shutdown pin, allowing for power-saving functionality when not in use.

Detailed Application Field Plans

The MAX9791AETI+T is suitable for various applications where high-quality audio amplification is required. Some potential application fields include:

1. Portable Audio Devices: The compact size and low-power consumption make it ideal for integration into portable audio devices such as smartphones, tablets, and portable media players.
2. Automotive Audio Systems: The amplifier can be used in automotive audio systems to enhance the audio output quality in vehicles.
3. Home Entertainment Systems: It can be incorporated into home theater systems, soundbars, and multimedia speakers to provide high-fidelity audio amplification.
4. Gaming Consoles: The amplifier can improve the audio experience in gaming consoles, ensuring clear and immersive sound effects