MAX9701ETG+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, stereo Class D audio amplifier
• Package: 24-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, available in quantities of 2500 units per reel

Specifications

• Power Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 2.8W per channel into 4Ω load at 5V supply voltage
• Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1W output power
• Signal-to-Noise Ratio (SNR): 100dB A-weighted
• Shutdown Current: 0.01µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9701ETG+T has a total of 24 pins. The pin configuration is as follows:

1. SDN (Shutdown) - Active-low shutdown control input
2. GND (Ground) - Ground reference for the IC
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. PVDD (Power Supply) - Positive power supply voltage input
6. VDD (Digital Supply) - Digital supply voltage input
7. BST (Bootstrap) - Bootstrap capacitor connection for the internal high-side MOSFETs
8. PGND (Power Ground) - Ground reference for the power stage
9. OUTL (Left Channel Output) - Output for the left audio channel
10. OUTL (Left Channel Output) - Output for the left audio channel
11. VDD (Digital Supply) - Digital supply voltage input
12. PVDD (Power Supply) - Positive power supply voltage input
13. INR+ (Right Channel Positive Input) - Positive input for the right audio channel
14. INR- (Right Channel Negative Input) - Negative input for the right audio channel
15. SDN (Shutdown) - Active-low shutdown control input
16. GND (Ground) - Ground reference for the IC
17. PGND (Power Ground) - Ground reference for the power stage
18. BST (Bootstrap) - Bootstrap capacitor connection for the internal high-side MOSFETs
19. VDD (Digital Supply) - Digital supply voltage input
20. PVDD (Power Supply) - Positive power supply voltage input
21. INL+ (Left Channel Positive Input) - Positive input for the left audio channel
22. INL- (Left Channel Negative Input) - Negative input for the left audio channel
23. GND (Ground) - Ground reference for the IC
24. SDN (Shutdown) - Active-low shutdown control input

Functional Features

• High-efficiency Class D operation for reduced power consumption and heat dissipation
• Integrated protection features such as overcurrent, overtemperature, and undervoltage lockout
• Low quiescent current in shutdown mode for power-saving applications
• Wide power supply voltage range for versatile usage scenarios
• Excellent audio performance with low distortion and high signal-to-noise ratio

Advantages and Disadvantages

Advantages: - High-performance audio amplification with low power consumption - Compact package size for space-constrained applications - Integrated protection features ensure reliable operation - Wide power supply voltage range allows for flexibility in design

Disadvantages: - Limited output power compared to larger audio amplifiers - Requires external components for proper operation and filtering

Working Principles

The MAX9701ETG+T is a stereo Class D audio amplifier that operates by using pulse-width modulation (PWM) techniques. It takes the input audio signals, amplifies them, and drives the connected speakers with high efficiency. The internal circuitry of the IC ensures low distortion and high-quality audio reproduction.

Detailed Application Field Plans

The MAX9701ETG+T can be used in various audio applications, including but not limited to: - Portable audio devices such as smartphones, tablets, and portable media players - Home audio systems and multimedia speakers - Automotive audio systems - Gaming consoles and entertainment systems - Personal computers and laptops

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