EMI2121数据手册滤波器的共模扼流圈规格书PDF

描述 Description

The EMI2121 is an integrated common mode filter providing both ESD protection and EMI filtering for high speed serial digital interfaces such as USB2.0.The EMI2121 provides EMI filtering for one differential data line pair and ESD protection for one data pair plus a supply input such as USB2.0 Vbus or USB ID pin. It is supplied in a small RoHS compliant WDFN8 package.

特性 Features

• Highly Integrated Common Mode Filter (CMF) with ESD Protectionprovides protection and EMI Reduction for systems using high speedSerial Data Lines with cost and space savings over Discrete Solutions
• Integration of ESD and Filter function
• Large Differential Mode Bandwidth with Cutoff Frequency > 2 GHz
• Rejects cellular transmit frequencies
• High Common Mode Stop Band Attenuation: >25 dB at 700 MHz,>30 dB at 800 MHz Typical
• Rejects cellular transmit frequencies
• Provides ESD Protection to IEC61000-4-2 Level 4, 12 kV Contact Discharge
• High level ESD protection
• Low Channel Input Capacitance Provides Superior Impedance Matching
• Low capacitive loading

应用 Application

• USB2.0 and other High Speed Differential Data Lines in Mobile Phones and Digital Still Cameras
• MIPI DPHY

简介

EMI2121属于滤波器的共模扼流圈。由制造生产的EMI2121共模扼流圈共模扼流圈是一种电气滤波器，能阻止两条或更多条数据或电源线共有的高频噪声，但允许期望的直流或低频信号通过。共模 (CM) 噪声电流通常来自无用的无线电信号、非屏蔽电子设备、逆变器和电机等来源。如果不加以过滤，这种噪声会在电子设备和电路中带来干扰问题。