MAX9725BETC+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

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel into 8Ω load at 5V supply voltage
• Total Harmonic Distortion + Noise (THD+N): 0.04% at 1kHz, 0.6W output power
• Signal-to-Noise Ratio (SNR): 100dB at 1kHz, 0.6W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9725BETC+T has the following pin configuration:

```

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| | --| VDD | --| GND | --| SD | --| SHDN | --| INL | --| INR | --| BIAS | --| BYPASS | --| OUTR | --| OUTL | |___________| ```

Functional Features

• High efficiency and low quiescent current for extended battery life
• Wide operating voltage range allows compatibility with various power sources
• Short-circuit and thermal protection for enhanced reliability
• Low shutdown current for power-saving applications
• Integrated click-and-pop suppression circuitry for improved audio performance

Advantages and Disadvantages

Advantages

• High-quality audio amplification with low distortion and noise
• Compact package size enables space-constrained designs
• Wide operating voltage range provides flexibility in power supply selection
• Efficient power consumption for extended battery life
• Integrated protection features enhance reliability

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for proper operation
• Sensitive to electromagnetic interference (EMI) due to compact form factor

Working Principles

The MAX9725BETC+T is a stereo audio amplifier that utilizes Class AB amplifier architecture. It amplifies the input audio signals received at the INL and INR pins and delivers amplified audio signals at the OUTL and OUTR pins. The BIAS pin sets the bias voltage, while the BYPASS pin allows for bypassing the internal gain setting resistors.

Detailed Application Field Plans

The MAX9725BETC+T is suitable for various audio amplification 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. TPA3116D2: A high-performance Class D audio amplifier with integrated digital-to-analog converter (DAC).
2. LM386: A low-power audio amplifier with adjustable gain and wide supply voltage range.
3. TDA7297: A dual bridge audio amplifier with high output power capability.
4. STA540: A 4-channel audio amplifier with built-in thermal and short-circuit protection.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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