PAM8003DR

Overview

Category: Audio Amplifier
Use: Amplifying audio signals
Characteristics: Small size, high efficiency, low power consumption
Package: Dual in-line package (DIP)
Essence: Integrated audio amplifier circuit
Packaging/Quantity: 50 units per tube

Specifications

• Power Supply Voltage: 2.5V - 5.5V
• Output Power: 3W (4Ω, 5V)
• Efficiency: >90%
• Total Harmonic Distortion (THD): <1%
• Signal-to-Noise Ratio (SNR): >80dB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PAM8003DR has a total of 8 pins:

1. VDD: Power supply positive terminal
2. GND: Ground
3. SD: Shutdown control input
4. IN+: Positive audio signal input
5. IN-: Negative audio signal input
6. OUT+: Positive speaker output
7. OUT-: Negative speaker output
8. NC: No connection

Functional Features

• Low power consumption and high efficiency make it suitable for portable devices.
• Built-in thermal and short-circuit protection ensures safe operation.
• Shutdown mode for power-saving when not in use.
• Wide operating voltage range allows flexibility in various applications.

Advantages and Disadvantages

Advantages: - Small size and lightweight - High efficiency - Low power consumption - Integrated thermal and short-circuit protection

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for high-power audio applications

Working Principles

The PAM8003DR is a class-D audio amplifier that utilizes pulse width modulation (PWM) technology. It converts the input audio signal into a series of high-frequency pulses, which are then amplified and filtered to produce the output audio signal. This class-D design ensures high efficiency and low power consumption.

Detailed Application Field Plans

The PAM8003DR is commonly used in various portable audio devices such as:

1. Mobile phones
2. Tablets
3. Portable speakers
4. MP3 players
5. Bluetooth headsets

Its small size, low power consumption, and high efficiency make it ideal for these applications.

Detailed and Complete Alternative Models

1. PAM8403: Similar specifications and pin configuration, but with higher output power (6W).
2. PAM8610: Higher output power (10W) and wider operating voltage range.
3. TPA3116D2: Class-D audio amplifier with higher output power (50W) and advanced features.

These alternative models offer different power levels and additional functionalities, catering to specific requirements.

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