MAX9728BETC+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: 12-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise (THD+N): 0.04% at 1kHz, 0.1W output power
• Signal-to-Noise Ratio (SNR): 100dB at 1kHz, 0.1W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9728BETC+T has 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. OUTR - Right Channel Audio Output
8. OUTL - Left Channel Audio Output
9. BST - Boost Capacitor Connection
10. PGND - Power Ground
11. NC - No Connection
12. PVDD - Positive Power Supply

Functional Features

• Low quiescent current consumption for power efficiency
• Wide supply voltage range allows flexibility in various applications
• Excellent audio quality with low distortion and high signal-to-noise ratio
• Shutdown control for power-saving mode when not in use
• Short-circuit and thermal protection for enhanced reliability

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Compact package size - Wide supply voltage range - Low quiescent current consumption

Disadvantages: - Limited output power compared to higher wattage amplifiers - No built-in volume control or equalization features

Working Principles

The MAX9728BETC+T is a stereo audio amplifier that operates by amplifying the input audio signals received on the INL and INR pins. The amplified audio signals are then outputted through the OUTL and OUTR pins, providing high-quality audio reproduction.

The amplifier can be controlled using the SHDN pin, which allows the user to enable or disable the device as needed. When in shutdown mode, the amplifier consumes minimal power, making it suitable for battery-powered applications.

Detailed Application Field Plans

The MAX9728BETC+T is commonly used in various audio applications, including:

1. Portable audio devices such as smartphones, tablets, and MP3 players
2. Headphone amplifiers and headphone output stages
3. Personal computer audio systems
4. Home theater systems and multimedia speakers
5. Automotive audio systems

Detailed and Complete Alternative Models

1. MAX9728AETC+T: Similar to MAX9728BETC+T, but with a different gain setting
2. MAX9728CETC+T: Higher output power version of MAX9728BETC+T
3. MAX9728DETCT+: Enhanced EMI performance variant of MAX9728BETC+T

These alternative models offer similar functionality and characteristics, allowing users to choose the most suitable option based on their specific requirements.

In conclusion, the MAX9728BETC+T is a high-performance, low-power stereo audio amplifier that provides excellent audio quality in a compact package. With its wide supply voltage range and power-saving features, it is well-suited for various audio applications.