NJM2073D

Product Overview

Category

NJM2073D belongs to the category of integrated circuits (ICs).

Use

The NJM2073D is commonly used as an audio power amplifier.

Characteristics

• The NJM2073D is a monolithic power amplifier designed for use in portable audio devices.
• It operates on a single power supply voltage, making it suitable for battery-powered applications.
• This IC has low distortion and high output power capabilities.
• It features built-in thermal shutdown protection to prevent overheating.

Package

The NJM2073D is available in a DIP (Dual In-line Package) format.

Essence

The essence of NJM2073D lies in its ability to amplify audio signals with high fidelity and efficiency.

Packaging/Quantity

The NJM2073D is typically packaged in tubes or reels, with quantities varying depending on the supplier.

Specifications

• Power Supply Voltage: 2.5V to 12V
• Output Power: 1.2W (typical)
• Total Harmonic Distortion: 0.1% (typical)
• Operating Temperature Range: -40°C to +85°C
• Package Type: DIP-8

Detailed Pin Configuration

The NJM2073D has a total of 8 pins arranged as follows:

```

---

| | --| NJM |-- --| 2073D |-- --| |-- |___________|

Pin Configuration: 1. VCC (Power Supply) 2. IN- (Negative Input) 3. IN+ (Positive Input) 4. GND (Ground) 5. OUT (Output) 6. NC (No Connection) 7. NC (No Connection) 8. VCC (Power Supply) ```

Functional Features

• Low distortion audio amplification
• Single power supply operation
• Thermal shutdown protection
• Compact and lightweight design
• Suitable for battery-powered devices

Advantages and Disadvantages

Advantages

• High output power capability
• Low distortion for high-quality audio reproduction
• Built-in thermal shutdown protection ensures safe operation
• Versatile application range

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Not suitable for high-power audio systems

Working Principles

The NJM2073D operates as a class AB amplifier, which combines the advantages of both class A and class B amplifiers. It uses a push-pull configuration to minimize distortion and improve efficiency. The input audio signal is amplified by the internal circuitry and delivered to the output with minimal distortion.

Detailed Application Field Plans

The NJM2073D is commonly used in various portable audio devices, including:

1. Portable speakers
2. Headphones
3. MP3 players
4. Personal digital assistants (PDAs)
5. Mobile phones

Detailed and Complete Alternative Models

1. TDA7266 - Dual Bridge Audio Amplifier
2. LM386 - Low Voltage Audio Power Amplifier
3. TPA3116D2 - Stereo Class D Audio Amplifier
4. MAX9744 - 20W Stereo Class D Audio Power Amplifier
5. STA540 - 4x13W Quad Bridge Car Radio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the NJM2073D depending on specific requirements and application needs.

In conclusion, the NJM2073D is a versatile audio power amplifier IC that provides high-quality sound amplification in portable audio devices. Its low distortion, single power supply operation, and built-in thermal shutdown protection make it an ideal choice for various applications.