MAXIM公司的MAX13325是一款可靠差分接口的汽车级双路音频驱动器器件,该器件具有差分输入及输出、集成输出诊断功能、接纳IIC接口或独立模式控制。输出诊断功能包罗短路到地、短路到电池、过流、过温和过分赔偿。输出端可驱动4nF对地负载,差分输出可驱动3nF负载。该芯片满足IEC 61000-4-2尺度。本京电港论坛文章首先先容芯片的简介、特点、内部框架图及应用范畴,并给出相应设计方案的设计原理图、元器件列表及PCB线路板元件结构图。 The MAX13325/MAX13326 dual audio line drivers provide a reliable differential interface between automotive audio components. The devices feature differential inputs and outputs, integrated output diagnostics, and are controlled using an I2C interface or operate in stand-alone mode. The outputs can deliver up to 4VRMS into 100I loads. The MAX13325 buffers analog audio signals for transmission over long cable distances with a fixed gain of 12dB, whereas the MAX13326 provides a 0dB fixed gain. The diagnostics on the outputs report conditions on a per channel basis, including short to GND, short to battery, overcurrent, overtemperature, and excessive offset. The output amplifiers can drive capacitive loads up to 4nF to ground and 3nF differentially. The outputs are protected according to IEC 61000-4-2 Q8kV Contact Discharge, and Q15kV Air Gap. The MAX13325/MAX13326 are specified from -40NC to +105NC and are available in a 28-pin TSSOP package with an exposed pad. MAX13325主要特性: • Comprehensive Programmability and Diagnostics Using I2C Interface MAX13325应用: • Automotive Radio
图1{京电港论坛}. MAX13325内部方框图 MAX13325方案介绍: The MAX13325 evaluation kit (EV kit) provides a proven design to evaluate the MAX13325 dual, audio line driver,which provides a robust differential interface between automotive audio components. The EV kit also includes WindowsM 2000-, Windows XPM-, and Windows VistaMcompatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX13325. The MAX13325 EV kit comes with a MAX13325GUI/V +installed. Contact the factory for free samples of the pincompatible MAX13326GUI/V+ to evaluate this device. Features: • Fully Differential Inputs and Outputs MAX13325方案原理图:
图2{京电港论坛}. NCP1255方案原理图 MAX13325方案质料清单: PCB元件布局图: |