MAX9719DEUE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High Efficiency, Low Noise, Small Package Size
• Package: 16-TSSOP (Thin Shrink Small Outline Package)
• Essence: Power Amplification for Audio Signals
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Power: 2.8W per channel (into 4Ω load)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical)
• Quiescent Current: 3mA (typical)
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9719DEUE+T has a 16-pin TSSOP package with the following pin configuration:

1. SHDN - Shutdown Control Input
2. GND - Ground
3. INL - Left Channel Audio Input
4. INR - Right Channel Audio Input
5. VDD - Positive Power Supply
6. BYP - Bypass Capacitor Connection
7. NC - No Connection
8. NC - No Connection
9. NC - No Connection
10. NC - No Connection
11. OUTR - Right Channel Audio Output
12. OUTL - Left Channel Audio Output
13. PGND - Power Ground
14. PVDD - Power Supply Input
15. FB - Feedback Input
16. NC - No Connection

Functional Features

• Single-Supply Operation
• Class D Amplifier Architecture
• Short-Circuit and Thermal Protection
• Low Quiescent Current
• Shutdown Mode for Power Saving

Advantages and Disadvantages

Advantages: - High Efficiency, reducing power consumption - Low Noise, providing clear audio output - Small Package Size, enabling compact designs - Shutdown Mode for power saving

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external bypass capacitor for optimal performance

Working Principles

The MAX9719DEUE+T is a Class D audio amplifier that operates on a single supply voltage. It utilizes pulse-width modulation (PWM) to amplify audio signals efficiently. The input audio signals are converted into high-frequency square wave signals, which are then filtered and amplified to drive the connected speakers. The Class D architecture ensures high efficiency by minimizing power dissipation.

Detailed Application Field Plans

The MAX9719DEUE+T is suitable for various audio amplification applications, including:

1. Portable Audio Devices: Provides efficient amplification for smartphones, tablets, and portable media players.
2. Home Theater Systems: Enhances audio output in compact home theater setups.
3. Automotive Audio Systems: Amplifies audio signals for car audio systems, improving sound quality.
4. Multimedia Speakers: Enables compact and powerful speaker designs for desktop computers and multimedia devices.
5. Gaming Consoles: Enhances the audio experience in gaming consoles and handheld gaming devices.

Detailed and Complete Alternative Models

1. MAX98357A - 3.2W Class D Audio Amplifier with I2S Interface
2. TPA3116D2 - 50W Stereo Class D Audio Amplifier
3. LM386 - Low Voltage Audio Power Amplifier
4. TAS5611A - 150W Stereo Class D Audio Amplifier with Integrated DSP
5. PAM8403 - 3W Stereo Class D Audio Amplifier Module

These alternative models offer different power outputs, features, and package options to suit various audio amplification requirements.

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