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MAX9485EUP+T
Overview
- Category: Integrated Circuit
- Use: Audio Amplifier
- Characteristics: High Performance, Low Noise
- Package: TSSOP-20
- Essence: Single-Supply, Rail-to-Rail Output, Class AB Amplifier
- Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications and Parameters
- Supply Voltage Range: 2.7V to 5.5V
- Quiescent Current: 3.6mA (typical)
- Output Power: 1.4W (typical)
- Total Harmonic Distortion + Noise (THD+N): 0.03% (typical)
- Signal-to-Noise Ratio (SNR): 95dB (typical)
- Gain Bandwidth Product: 1.2MHz (typical)
Pin Configuration
The MAX9485EUP+T features a TSSOP-20 package with the following pin configuration:
- IN-
- IN+
- GND
- VDD
- BYPASS
- SHDN
- OUT
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
Functional Characteristics
The MAX9485EUP+T is a single-supply, rail-to-rail output, class AB audio amplifier. It offers high performance and low noise, making it suitable for various audio applications. The amplifier operates within a supply voltage range of 2.7V to 5.5V and consumes a quiescent current of approximately 3.6mA. With an output power of 1.4W and a total harmonic distortion + noise (THD+N) of 0.03%, it delivers high-quality audio reproduction. The amplifier also provides a signal-to-noise ratio (SNR) of 95dB and has a gain bandwidth product of 1.2MHz.
Advantages and Disadvantages
Advantages: - High performance - Low noise - Rail-to-rail output - Class AB operation - Wide supply voltage range
Disadvantages: - Limited output power compared to higher wattage amplifiers
Applicable Range of Products
The MAX9485EUP+T is suitable for various audio applications, including portable devices, consumer electronics, automotive systems, and multimedia systems. It can be used in audio amplification circuits where high performance and low noise are desired.
Working Principles
The MAX9485EUP+T operates as a class AB amplifier, which combines the advantages of both class A and class B amplifiers. It uses complementary transistors to amplify the input audio signal and deliver an amplified output signal with minimal distortion. The rail-to-rail output capability allows the amplifier to provide a wide dynamic range, ensuring accurate reproduction of the input audio signal.
Detailed Application Field Plans
The MAX9485EUP+T can be used in the following application fields:
- Portable Audio Devices: Enhancing the audio output quality of smartphones, tablets, and portable media players.
- Home Entertainment Systems: Amplifying audio signals in home theater systems, soundbars, and audio receivers.
- Automotive Audio Systems: Improving the audio performance in car audio systems and infotainment systems.
- Multimedia Devices: Amplifying audio signals in multimedia speakers, gaming consoles, and computer peripherals.
- Industrial Audio Applications: Providing audio amplification in industrial equipment, public address systems, and professional audio devices.
Detailed Alternative Models
Some alternative models to the MAX9485EUP+T include:
- MAX9704: Class D audio amplifier with higher output power and efficiency.
- LM386: Low voltage audio power amplifier with a simple design and low cost.
- TPA3116D2: Class D audio amplifier with integrated digital signal processing features.
- NJM2073: Dual class AB audio amplifier with low noise and high output power.
- STA540: Multiwatt 15W stereo power amplifier with built-in thermal protection.
5 Common Technical Questions and Answers
Q: What is the maximum supply voltage for the MAX9485EUP+T? A: The maximum supply voltage is 5.5V.
Q: Can the MAX9485EUP+T operate on a single supply voltage? A: Yes, it can operate on a single supply voltage within the range of 2.7V to 5.5V.
Q: What is the typical quiescent current consumption of the MAX9485EUP+T? A: The typical quiescent current consumption is 3.