PAM8904JPR

Product Overview

Category

PAM8904JPR belongs to the category of audio amplifier integrated circuits (ICs).

Use

This product is primarily used for amplifying audio signals in various electronic devices such as smartphones, tablets, laptops, and portable media players.

Characteristics

• Compact size and low power consumption
• High efficiency and low distortion
• Wide operating voltage range
• Built-in thermal and short-circuit protection
• Supports both mono and stereo configurations

Package

PAM8904JPR is available in a small outline package (SOP) with a total of 16 pins.

Essence

The essence of PAM8904JPR 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 each reel/tube containing a specific quantity of PAM8904JPR ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Operating Voltage: 2.5V - 5.5V
• Output Power: Up to 1.5W per channel (stereo mode)
• Total Harmonic Distortion (THD): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Efficiency: >85%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

PAM8904JPR features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VDD: Power supply input
2. GND: Ground reference
3. SD: Shutdown control input
4. INL: Left channel audio input
5. INR: Right channel audio input
6. BYP: Bypass capacitor connection
7. VREF: Reference voltage output
8. NC: No connection
9. GND: Ground reference
10. OUTR: Right channel audio output
11. OUTL: Left channel audio output
12. VDD: Power supply input
13. GND: Ground reference
14. BYP: Bypass capacitor connection
15. INR: Right channel audio input
16. INL: Left channel audio input

Functional Features

• Low-power shutdown mode for energy conservation
• Built-in thermal and short-circuit protection for enhanced safety
• Wide operating voltage range allows compatibility with various power sources
• Supports both mono and stereo configurations, providing flexibility in design

Advantages and Disadvantages

Advantages

• Compact size enables integration into space-constrained devices
• High efficiency results in minimal power consumption
• Low distortion ensures high-quality audio reproduction
• Thermal and short-circuit protection enhances reliability and safety

Disadvantages

• Limited output power compared to higher wattage amplifiers
• May require additional external components for optimal performance

Working Principles

PAM8904JPR operates on the principle of amplifying low-power audio signals using a class D amplifier architecture. It utilizes pulse width modulation (PWM) techniques to convert the incoming audio signal into a series of high-frequency pulses. These pulses are then amplified and filtered to reconstruct the original audio waveform.

Detailed Application Field Plans

PAM8904JPR finds applications in a wide range of electronic devices where audio amplification is required. Some potential application fields include:

1. Mobile Devices: Smartphones, tablets, and portable media players can benefit from PAM8904JPR's compact size and low power consumption.
2. Laptops and PCs: This IC can be used to enhance the audio output capabilities of laptops and desktop computers.
3. Consumer Electronics: Audio systems, gaming consoles, and home theater setups can utilize PAM8904JPR for improved audio performance.
4. Automotive: In-car entertainment systems and automotive infotainment units can benefit from the compact size and efficiency of this IC.

Detailed and Complete Alternative Models

1. PAM8403: Similar to PAM8904JPR, this IC offers stereo audio amplification with low power consumption.
2. TPA3116D2: A higher-powered alternative, providing greater output wattage for applications requiring more audio power.
3. LM386: A popular choice for simple audio amplification circuits, suitable for low-power applications.

These alternative models offer different features and specifications, allowing designers to choose the most appropriate solution based on their specific requirements.

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