MAX9725AETC+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo headphone amplifier
• Package: 20-TQFN (4x4) package
• Essence: Provides high-quality audio amplification for headphones
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 80mW per channel into a 32Ω load
• Total Harmonic Distortion + Noise (THD+N): 0.01% at 1kHz, 40mW output power
• Input Impedance: 100kΩ
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9725AETC+ has a total of 20 pins. The pin configuration is as follows:

1. SHDN - Shutdown Control Input
2. GND - Ground
3. INL- - Left Channel Negative Input
4. INL+ - Left Channel Positive Input
5. VDD - Power Supply Voltage
6. OUTL - Left Channel Output
7. BIAS - Bias Voltage Output
8. BYP - Bypass Capacitor Connection
9. NC - No Connect
10. NC - No Connect
11. NC - No Connect
12. NC - No Connect
13. NC - No Connect
14. NC - No Connect
15. NC - No Connect
16. NC - No Connect
17. INR+ - Right Channel Positive Input
18. INR- - Right Channel Negative Input
19. OUTR - Right Channel Output
20. GND - Ground

Functional Features

• High-quality audio amplification for stereo headphones
• Low-power consumption, suitable for portable devices
• Shutdown control input for power management
• Bypass capacitor connection for improved performance
• Bias voltage output for biasing external components

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Shutdown control for power management - Compact package size - Suitable for portable devices

Disadvantages: - Limited output power compared to some other amplifiers - Requires external components for optimal performance

Working Principles

The MAX9725AETC+ is a stereo headphone amplifier that operates by amplifying the audio signal received from the left and right channel inputs. It utilizes a low-power architecture, making it suitable for battery-powered devices. The shutdown control input allows for power management, enabling the amplifier to be turned off when not in use, conserving energy. The bypass capacitor connection improves the overall performance of the amplifier by reducing noise and improving stability.

Detailed Application Field Plans

The MAX9725AETC+ can be used in various applications where high-quality audio amplification for stereo headphones is required. Some potential application fields include:

1. Portable Audio Devices: MP3 players, smartphones, tablets, etc.
2. Personal Computers: Laptops, desktops, gaming systems, etc.
3. Home Entertainment Systems: Audio receivers, soundbars, televisions, etc.
4. Automotive Audio Systems: Car stereos, head units, amplifiers, etc.
5. Professional Audio Equipment: Studio monitors, mixing consoles, DJ equipment, etc.

Detailed and Complete Alternative Models

1. MAX9724AETC+: Similar to MAX9725AETC+ with slightly different specifications.
2. MAX9726AETC+: Higher output power version of the MAX9725AETC+.
3. MAX9727AETC+: Lower power consumption version of the MAX9725AETC+.
4. MAX9728AETC+: Dual-channel version of the MAX9725AETC+ for stereo applications.

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

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