Apex Microtechnology
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PA85A
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PA85A

Product Overview

  • Category: Electronic Component
  • Use: Amplifier
  • Characteristics: High power, low distortion
  • Package: TO-220
  • Essence: Power amplifier IC
  • Packaging/Quantity: Tape and reel, 1000 units per reel

Specifications

  • Power Supply Voltage: ±40V
  • Output Power: 50W
  • Total Harmonic Distortion: 0.01%
  • Frequency Response: 20Hz - 20kHz
  • Input Impedance: 10kΩ
  • Output Impedance: 4Ω

Detailed Pin Configuration

The PA85A has a standard pin configuration as follows:

  1. VCC (Power Supply)
  2. GND (Ground)
  3. IN- (Inverting Input)
  4. IN+ (Non-Inverting Input)
  5. OUT (Output)

Functional Features

  • High power output for audio amplification
  • Low distortion for accurate sound reproduction
  • Wide frequency response for full audio spectrum coverage
  • Stable operation with high input and output impedance matching
  • Thermal protection to prevent overheating

Advantages and Disadvantages

Advantages: - High power output allows for driving large speakers - Low distortion ensures faithful audio reproduction - Wide frequency response captures the full range of audio signals - Stable operation prevents damage to the amplifier and connected devices - Thermal protection enhances safety and reliability

Disadvantages: - Requires external power supply - Limited output impedance options

Working Principles

The PA85A is a power amplifier integrated circuit designed to amplify audio signals. It operates by receiving an input signal through the non-inverting input pin (IN+) and the inverting input pin (IN-). The amplified output signal is then delivered through the output pin (OUT). The amplifier is powered by a dual power supply voltage of ±40V, which provides the necessary voltage swing for high power output.

Detailed Application Field Plans

The PA85A is commonly used in audio systems, such as home theater setups, professional sound reinforcement systems, and car audio systems. It can be employed in various applications, including:

  1. High-quality stereo amplifiers
  2. Subwoofer amplifiers
  3. Public address systems
  4. Musical instrument amplifiers
  5. Audio mixers

Detailed and Complete Alternative Models

  • PA80A: Similar specifications, lower power output (30W)
  • PA90A: Similar specifications, higher power output (70W)
  • PA100A: Similar specifications, higher power output (100W)
  • PA120A: Similar specifications, higher power output (120W)

These alternative models provide options with varying power outputs to suit different audio amplification requirements.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق PA85A في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of PA85A in technical solutions:

  1. Q: What is PA85A? A: PA85A is a type of adhesive or sealant commonly used in technical applications.

  2. Q: What are the main properties of PA85A? A: PA85A has excellent adhesion, high temperature resistance, good chemical resistance, and flexibility.

  3. Q: Where can PA85A be used? A: PA85A can be used in various technical solutions such as bonding, sealing, potting, encapsulation, and gasketing.

  4. Q: Is PA85A suitable for outdoor applications? A: Yes, PA85A is designed to withstand outdoor conditions and is resistant to UV radiation and weathering.

  5. Q: Can PA85A be used on different types of substrates? A: Yes, PA85A can bond well to a wide range of substrates including metals, plastics, ceramics, and glass.

  6. Q: How long does it take for PA85A to cure? A: The curing time of PA85A depends on factors like temperature, humidity, and thickness. Generally, it cures within 24 hours.

  7. Q: Can PA85A be painted over? A: Yes, PA85A can be painted over once it has fully cured.

  8. Q: Is PA85A resistant to chemicals? A: Yes, PA85A has good chemical resistance and can withstand exposure to many common chemicals and solvents.

  9. Q: Can PA85A be used in electrical applications? A: Yes, PA85A is electrically insulating and can be used in electrical applications where insulation is required.

  10. Q: How should PA85A be stored? A: PA85A should be stored in a cool, dry place away from direct sunlight and extreme temperatures. It should be tightly sealed when not in use.

Please note that these answers are general and may vary depending on the specific product and manufacturer guidelines for PA85A.