OPA548F/500G3 - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The OPA548F/500G3 is a high-performance audio power amplifier designed for use in various audio applications. It provides excellent sound quality and high output power, making it suitable for professional audio systems, home theater setups, and automotive audio systems.

Characteristics: - High output power: The OPA548F/500G3 can deliver up to 500W of power, ensuring loud and clear audio reproduction. - Low distortion: It offers low total harmonic distortion (THD) and noise, resulting in accurate and faithful audio reproduction. - Wide frequency response: The amplifier has a wide frequency response range, allowing it to handle a broad spectrum of audio signals. - Thermal protection: It features built-in thermal protection circuitry to prevent overheating and ensure safe operation. - Short-circuit protection: The OPA548F/500G3 includes short-circuit protection to safeguard the amplifier and connected speakers from damage.

Package: The OPA548F/500G3 comes in a compact and sturdy package, which is designed to dissipate heat efficiently. This package ensures reliable performance even under demanding operating conditions.

Essence: The essence of the OPA548F/500G3 lies in its ability to deliver high-quality audio with high power output, while maintaining low distortion and excellent thermal management.

Packaging/Quantity: The OPA548F/500G3 is typically packaged individually and is available in quantities suitable for both small-scale and large-scale audio system installations.

Specifications

• Power Supply Voltage: ±20V to ±90V
• Output Power: Up to 500W
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Frequency Response: 20Hz to 20kHz
• Input Impedance: 10kΩ
• Output Impedance: 0.1Ω
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The OPA548F/500G3 has the following pin configuration:

1. V- (Negative Power Supply)
2. IN- (Inverting Input)
3. IN+ (Non-Inverting Input)
4. V+ (Positive Power Supply)
5. OUT (Output)
6. NC (No Connection)

Functional Features

• High power output for driving speakers with ease.
• Low distortion and noise for accurate audio reproduction.
• Wide frequency response for handling a variety of audio signals.
• Built-in thermal protection to prevent overheating.
• Short-circuit protection to safeguard the amplifier and connected speakers.

Advantages and Disadvantages

Advantages: - High output power capability. - Excellent sound quality with low distortion. - Wide frequency response range. - Robust thermal and short-circuit protection features. - Compact and sturdy package design.

Disadvantages: - Requires a higher power supply voltage compared to some other audio amplifiers. - Relatively higher cost compared to lower-power alternatives.

Working Principles

The OPA548F/500G3 operates as a class AB audio power amplifier. It amplifies the input audio signal using a combination of voltage and current amplification stages. The amplified signal is then delivered to the connected speakers through the output pin. The amplifier incorporates various protection mechanisms, such as thermal and short-circuit protection, to ensure safe and reliable operation.

Detailed Application Field Plans

The OPA548F/500G3 finds applications in various audio systems, including: 1. Professional audio systems for concerts, theaters, and stadiums. 2. Home theater setups for immersive audio experiences. 3. Automotive audio systems for high-quality in-car entertainment. 4. Public address (PA) systems for large venues and events. 5. Audio amplification in recording studios and broadcasting facilities.

Detailed and Complete Alternative Models

1. OPA549F/400G3: Similar to the OPA548F/500G3, but with a slightly lower output power of 400W.
2. OPA547F/600G3: Offers higher output power of 600W, suitable for applications requiring even more power.
3. OPA546F/300G3: Lower-power alternative with an output power of 300W, ideal for smaller audio systems.

These alternative models provide options based on specific power requirements and cost considerations.

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