MAX9777ETI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power audio amplifier with integrated volume control and shutdown function.
• Package: 28-pin TQFN package
• Essence: The MAX9777ETI+T is a versatile audio amplifier designed for various applications requiring high-quality audio amplification.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.4W per channel
• Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1.2W output power
• Shutdown Current: 0.01µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9777ETI+T features a 28-pin Thin Quad Flat No-Lead (TQFN) package with the following pin configuration:

1. SHDN - Shutdown Control Input
2. VDD - Positive Power Supply
3. GND - Ground
4. INL - Left Channel Differential Input
5. INR - Right Channel Differential Input
6. BYP - Bypass Capacitor Connection
7. AGND - Analog Ground
8. OUTL - Left Channel Output
9. OUTR - Right Channel Output
10. VREF - Reference Voltage Output
11. VCM - Common Mode Voltage Output
12. VCOM - Common Mode Voltage Input
13. VDD - Positive Power Supply
14. GND - Ground
15. NC - No Connect
16. NC - No Connect
17. NC - No Connect
18. NC - No Connect
19. NC - No Connect
20. NC - No Connect
21. NC - No Connect
22. NC - No Connect
23. NC - No Connect
24. NC - No Connect
25. NC - No Connect
26. NC - No Connect
27. NC - No Connect
28. NC - No Connect

Functional Features

• Integrated volume control for easy audio level adjustment.
• Shutdown function to conserve power when not in use.
• Low-power consumption for extended battery life.
• High-quality audio amplification with low distortion and noise.

Advantages and Disadvantages

Advantages: - Versatile audio amplifier suitable for various applications. - Integrated volume control simplifies audio level adjustment. - Low-power consumption extends battery life. - High-quality audio amplification with low distortion and noise.

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

Working Principles

The MAX9777ETI+T is a class AB audio amplifier that operates by amplifying the input audio signal received through the differential inputs (INL and INR). The amplified audio signals are then delivered to the respective left and right channel outputs (OUTL and OUTR). The volume control feature allows users to adjust the audio level according to their preference.

The shutdown function (SHDN) enables the amplifier to enter a low-power state when not in use, conserving energy and prolonging battery life. The integrated circuit is designed to provide high-quality audio amplification with minimal distortion and noise.

Detailed Application Field Plans

The MAX9777ETI+T can be used in various audio-related applications, including but not limited to:

1. Portable audio devices such as smartphones, tablets, and MP3 players.
2. Personal computers and laptops for enhanced audio output.
3. Home entertainment systems, including soundbars and multimedia speakers.
4. Automotive audio systems for improved sound quality.
5. Gaming consoles and handheld gaming devices.

Detailed and Complete Alternative Models

1. MAX9777EUI+T: Similar to MAX9777ETI+T but available in a 28-pin TSSOP package.
2. MAX9777EVKIT: Evaluation kit for the MAX9777ETI+T, providing a complete platform for testing and prototyping.

These alternative models offer similar functionality and performance, providing options for different packaging preferences or evaluation purposes.

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