PAM8403DR-H

Product Overview

Category

PAM8403DR-H belongs to the category of audio amplifier integrated circuits.

Use

It is primarily used for amplifying audio signals in various electronic devices such as portable speakers, headphones, and multimedia systems.

Characteristics

• Small size and low power consumption
• High efficiency and excellent sound quality
• Dual-channel stereo output
• Wide operating voltage range (2.5V - 5.5V)
• Built-in volume control function
• Thermal shutdown protection

Package

PAM8403DR-H is available in a small outline package (SOP) with eight pins.

Essence

The essence of PAM8403DR-H lies in its ability to provide high-quality audio amplification while consuming minimal power and occupying a small footprint.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Operating Voltage: 2.5V - 5.5V
• Output Power: 3W per channel (at 4Ω load, 5V supply)
• Efficiency: >90%
• Signal-to-Noise Ratio: >90dB
• Total Harmonic Distortion: <0.1%
• Frequency Response: 20Hz - 20kHz

Detailed Pin Configuration

1. VDD: Positive power supply
2. GND: Ground reference
3. INL: Input for left channel audio signal
4. INR: Input for right channel audio signal
5. SHDN: Shutdown control input
6. NC: No connection
7. OUTR: Output for right channel audio signal
8. OUTL: Output for left channel audio signal

Functional Features

• Dual-channel stereo output allows for immersive audio experience.
• Built-in volume control function enables easy adjustment of audio levels.
• Thermal shutdown protection prevents damage due to excessive heat.
• Wide operating voltage range provides flexibility in various applications.

Advantages and Disadvantages

Advantages

• Small size and low power consumption make it suitable for portable devices.
• High efficiency ensures longer battery life.
• Excellent sound quality enhances the overall audio experience.
• Built-in volume control simplifies user interaction.

Disadvantages

• Limited output power may not be sufficient for high-power audio applications.
• Lack of additional features such as equalization or tone control.

Working Principles

PAM8403DR-H operates on the principle of class D amplification. It utilizes pulse width modulation (PWM) to convert the input audio signal into a series of high-frequency pulses. These pulses are then amplified by the internal power MOSFETs, resulting in an amplified audio signal at the output.

Detailed Application Field Plans

PAM8403DR-H finds application in various electronic devices, including: 1. Portable speakers: Provides amplified audio output for enhanced sound quality. 2. Headphones: Amplifies audio signals to drive headphone speakers. 3. Multimedia systems: Enhances the audio output of multimedia devices such as TVs, computers, and gaming consoles.

Detailed and Complete Alternative Models

1. PAM8406: Similar to PAM8403DR-H but with higher output power capability.
2. TPA3116D2: Class D audio amplifier with advanced features and higher output power.
3. LM386: Low-power audio amplifier with simplicity and ease of use.

These alternative models offer different specifications and features, catering to diverse application requirements.

Word count: 511 words