MAX9750AETI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, stereo Class D 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: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Power Supply Voltage Range: 4.5V to 14V
• Output Power: Up to 2 x 20W into 8Ω speakers
• Efficiency: Up to 87%
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >100dB
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9750AETI+T has a total of 28 pins. The pin configuration is as follows:

1. SDN (Shutdown) - 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. PVDD (Power Supply) - Positive power supply voltage for the output stage
7. OUTL (Left Channel Output) - Output for the left audio channel
8. FB (Feedback) - Feedback input for the control loop
9. AGND (Analog Ground) - Analog ground reference
10. INR- (Right Channel Negative Input) - Negative input for the right audio channel
11. INR+ (Right Channel Positive Input) - Positive input for the right audio channel
12. SHDN (Shutdown) - Shutdown control input
13. VDD (Power Supply) - Positive power supply voltage
14. PVDD (Power Supply) - Positive power supply voltage for the output stage
15. OUTR (Right Channel Output) - Output for the right audio channel
16. FB (Feedback) - Feedback input for the control loop
17. AGND (Analog Ground) - Analog ground reference
18. BTL (Bridge-Tied Load) - Bridge-tied load output configuration selection
19. GAIN (Gain Control) - Gain control input
20. MUTE (Mute Control) - Mute control input
21. SDN (Shutdown) - Shutdown control input
22. GND (Ground) - Ground reference
23. INL- (Left Channel Negative Input) - Negative input for the left audio channel
24. INL+ (Left Channel Positive Input) - Positive input for the left audio channel
25. VDD (Power Supply) - Positive power supply voltage
26. PVDD (Power Supply) - Positive power supply voltage for the output stage
27. OUTL (Left Channel Output) - Output for the left audio channel
28. FB (Feedback) - Feedback input for the control loop

Functional Features

• High-efficiency Class D amplifier architecture
• Low total harmonic distortion and noise
• Wide power supply voltage range
• Thermal and short-circuit protection
• Shutdown and mute control options
• Bridge-tied load (BTL) output configuration

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Compact form factor - Efficient power usage - Protection features for enhanced reliability

Disadvantages: - Limited output power compared to larger amplifiers - Requires external components for full functionality

Working Principles

The MAX9750AETI+T is a stereo Class D audio amplifier that utilizes pulse-width modulation (PWM) to convert the input audio signal into a high-frequency square wave. This square wave is then filtered and amplified to produce the desired audio output. The Class D architecture allows for high efficiency and low power consumption.

Detailed Application Field Plans

The MAX9750AETI+T can be used in various audio applications, including:

1. Portable speakers
2. Home theater systems
3. Automotive audio systems
4. Gaming consoles
5. Personal computers

Detailed and Complete Alternative Models

1. TPA3116D2 - Texas Instruments
2. TAS5630B - Texas Instruments
3. STA516B - STMicroelectronics
4. IRS2092 - International Rectifier
5. PAM8403 - Diodes Incorporated

These alternative models offer similar functionality and can be considered as alternatives to the MAX9750AETI+T based on specific application requirements.

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