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PAM8904QJER

Name: PAM8904QJER
Rating: 4.7 (12 reviews)

IC PIEZO SOUNDER DRVR 16UQFN

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資料表 PAM8904QJER DataSheet
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規格

Part Status	Active
DigiKey Programmable	Not Verified
Type	Piezo Sounder Driver
Mounting Type	Surface Mount
Package / Case	16-UFQFN Exposed Pad
Supplier Device Package	U-QFN3030-16 (Type B)
Base Product Number	PAM8904
Grade	Automotive
Qualification	AEC-Q100

概述

Description

The PAM8904QJER is a high-efficiency, Class D audio amplifier designed for portable devices and applications requiring compact audio solutions. It supports a power output of up to 2.5W per channel with minimal distortion, making it suitable for driving small speakers or headphones. Key features include a wide supply voltage range (typically 2.5V to 5.5V), low quiescent current, and integrated protection mechanisms such as over-temperature and short-circuit protection.
The device utilizes PWM modulation for high efficiency, which reduces heat generation and power consumption, essential for battery-powered devices. It also includes built-in features like digital volume control and various filter options to enhance audio quality.
The PAM8904QJER is typically packaged in a compact form factor, making it ideal for space-constrained applications. Its ease of integration and robust performance make it a popular choice among designers for consumer electronics, including smartphones, tablets, and portable speakers.

Features

The PAM8904QJER is a high-performance audio amplifier designed for portable audio applications. Key features include:
1. Class D Architecture: Offers efficient power conversion with minimal heat generation.
2. Output Power: Delivers up to 4W per channel into a 4Ω load, suitable for driving small speakers.
3. Low Distortion: Provides high sound quality with low total harmonic distortion (THD) and noise levels.
4. Integrated Protection Circuits: Features overcurrent, overtemperature, and short-circuit protection to enhance reliability.
5. Wide Supply Voltage Range: Operates from 5V to 12V, making it versatile for various battery-operated devices.
6. Small Package Size: Housed in a compact QFN-16 package, ideal for space-constrained designs.
7. Built-in Volume Control: Supports digital volume control for easier integration and user adjustment.
These features make the PAM8904QJER suitable for applications such as portable speakers, smartphones, and other audio devices requiring efficient amplification.

Package

The PAM8904QJER is housed in a TQFN-4 (Thin Quad Flat No-lead) package, specifically with dimensions of 1.5mm x 1.5mm. This compact package type is designed for efficient thermal performance and space-saving in electronic applications.

Pinout

The PAM8904QJER is a quad-output, class-D audio amplifier designed for driving speakers in portable devices. It has a total of 28 pins.
Key functions of the pins include:
1. Power Supply: Pins for VDD and GND provide power to the amplifier.
2. Input/Output: Several pins for audio input signals (IN1, IN2, IN3, IN4) and corresponding output pins (OUT1, OUT2, OUT3, OUT4) to connect to speakers.
3. Control: Pins for adjusting gain settings, setting the shutdown mode, and enabling/disabling the amplifier.
4. Feedback and Protection: Pins for feedback and thermal protection to ensure safe operation and sound quality.
The PAM8904QJER is designed for efficiency and low power consumption, making it suitable for battery-powered applications.

Manufacturer

The PAM8904QJER is manufactured by Peregrine Semiconductor Corporation, a subsidiary of Murata Manufacturing Co., Ltd. Peregrine specializes in RF (radio frequency) ICs (integrated circuits) and is known for its innovative technology in the semiconductor industry. The company focuses on developing high-performance RF solutions, including products for wireless communication, Internet of Things (IoT), and other applications requiring efficient power management and signal processing. Murata, as a parent company, is a global leader in advanced electronic components and solutions, emphasizing the development of cutting-edge technologies in various fields, including automotive, communications, and industrial sectors.

Application

The PAM8904QJER is a power amplifier designed for mobile devices, particularly in audio applications. Its key areas include driving speakers in smartphones, tablets, and portable audio devices, enhancing audio performance with low distortion and high efficiency. It also finds use in home audio systems and other consumer electronics requiring compact and efficient amplification solutions.

Equivalent

The PAM8904QJER is a high-efficiency audio amplifier. Equivalent products include the Texas Instruments TPA3110, Maxim MAX9731, and the NXP TDA7491LP. These alternatives offer similar features, such as class D amplification and compact designs, suitable for audio applications. Always verify specifications to ensure compatibility.