MAX4299数据手册集成电路（IC）的音频专用规格书PDF

描述 Description

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 a stereo headphone driver. 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 Rail-to-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.
The amplifiers exhibit 115dB of DC power-supply rejection and 80dB at 100kHz. The output amplifiers are capable of driving a 1.5VRMS signal into a 10-kilohm load with 0.0008% THD+N. They can also drive 32Ω headphones to 1.2VRMS with 0.02% distortion. At +3.3V, the linear regulator can output 100mA of current. The MAX4298 is available in a tiny 10-pin µMAX® while the MAX4299 is available in the space-saving 16-pin TSSOP package.

特性 Features

• Audio System IC (MAX4299)
• Ultra-High PSRR Stereo Headphone Driver
• Ultra-High PSRR Microphone Amp
• 100mA, 3.3V Linear Regulator
• 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 16Ω Load and 1.5VRMS and 0.0008% THD+N into 10kΩ Load
• PC99-Compliant Microphone Amplifier:
• 0.005% THD+N into 10kΩ Load
• 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)

应用 Application

• 计算机：台式机、工作站和服务器
• 消费类音频
• 无绳电话
• 笔记本电脑
• 掌上电脑
• 笔输入掌上电脑

简介

MAX4299属于集成电路（IC）的音频专用。由制造生产的MAX4299音频专用音频专用的半导体器件专为音频信号的滤波、驱动、放大、转换和接口而设计。特征包括功能、应用、通道数、接口、电压和规格。应用包括音频系统、汽车音频、消费类音频、乐器、专业音频、通信系统、电信系统、数字音频、驱动器、前置放大器、信号混合、信号处理、语音触发器解决方案和 10 Base-T。