مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

The MAX4298 and MAX4299 are audio system ICs designed for single +5V applications. The MAX4299 features a stereo headphone driver, a microphone amplifier, and a +3.3V linear regulator; the MAX4298 features the stereo headphone driver only. The MAX4298/ MAX4299 are designed specifically for harsh digital environments where board space is at a premium and the digital power supply is noisy. The design uses innovative design techniques to achieve ultra-high power-supply rejection across the audio signal band while, at the same time, delivering a high-current Railto-Rail output drive capability. The chip is designed to drive highly capacitive loads that may be encountered when driving long cables to a remote load such as desktop/notebook headphones or speakers. These devices are fully compliant with PC99 standards.

Features

• 93dB typ PSRR at 20kHz Operates Directly from Noisy Digital Supplies
• Clickless/Popless Power-Up, Power-Down, Mute and Unmute
• PC99-Compliant Output Drivers: Better than 1VRMS Output into 16ΩLoad and 1.5VRMS and 0.0008% THD+N into 10kΩLoad
• PC99-Compliant Microphone Amplifier: 0.005% THD+N into 10kΩLoad
• 22nF Capacitive Load Drive Capability
• 4.5V to 5.5V Single-Supply Operation
• Internally Generated Bias Voltage
• All Gains Externally Adjustable
• Available in Space-Saving Packages 10-Pin μMAX (MAX4298) 16-Pin TSSOP (MAX4299)

Applications

• Notebook and Desktop Audio
• Hands-Free Headsets
• USB Audio Peripherals
• IP Telephones
• Wireless Internet Devices
• MP3 Players/Recorders