EMI滤波器有哪些用途?
意法半导体的EMI低通滤波器面向模拟应用的低速数字接口,保护存储卡、USB低速或全速接口、麦克风、扬声器和显示器中的数据线不受ESD浪涌的影响并帮助消除EMI噪声,确保符合欧盟指令2014/30 /欧盟和技术标准EN 55032 / CISPR 32(多媒体设备的电磁兼容性 - 发射要求)和EN 55035 / CISPR 35(多媒体设备的电磁兼容性 - 抗扰度要求)。
它们包括低通滤波器,并结合了ESD保护二极管和上拉和/或下拉电阻,具体取决于需要保护的应用。
意法半导体EMI滤波器的优点
意法半导体EMI滤波器的集成度让电子系统设计人员可以节省PCB空间(相比等效的离散解决方案),同时加强其应用对静电放电和EMI噪声的抗性能力。
相比于分立器件解决方案,另一个优点在于寄生电感更低,EMI滤波器具有较宽的频率范围抑制。当设计人员需要微调PCB布局时,即可体现设计的灵活性,因为滤波器的谐振频率通常不像分立器件解决方案那样可以修改。
我们的EMI滤波器采用R-C(用于一阶滤波)获L-C(用于二阶滤波)被动式Pi滤波器。
精选 视频
- EMIF06-MSD02N16 6-line EMI filter and ESD protection for T-Flash and micro SD card™ interfaces
- EMIF06-VID01F2 6-line EMI filter and ESD protection for display interfaces
- EMIF06-HMC02F2 6-line EMI filter and ESD protection for mini and micro SD card interfaces
- EMIF06-HSD03F3 6-line EMI filter with integrated ESD protection for micro-SD Card™
- EMIF08-1005M16 8-line low capacitance EMI filter and ESD protection
- EMIF02-SPK02F2 2-line IPAD™ EMIF filter and ESD protection
- EMIF02-MIC03F2 2-line EMI filter and ESD protection for microphones
- EMIF02-MIC03M6 2-line EMI filter and ESD protection for microphones
- EMIF02-SPK03F2 2-channel EMI filter and ESD protection for speaker phone
- EMIF08-LCD04M16 8-line L-C EMI filter and ESD protection for display interfaces
- EMIF02-USB03F2 2-line EMI filter and ESD protection with R pull-up for USB interfaces
- EMIF08-VID1F3 8 line low capacitance EMI filter and ESD protection
- EMIF06-MSD04F3 6-line EMI filter and ESD protection for mini and micro SD card interfaces
- EMIF02-1003M6 2-line EMI filter and ESD protection
- EMIF01-10005 2-line EMI filter and ESD protection
- EMIF03-SIM02M8 3-line EMI filter and ESD protection for SIM card interfaces
- EMIF02-USB01F2 2-line EMI filter and ESD protection with R pull-up for USB interfaces
- EMIF06-mSD01F2 6-line EMI filter and ESD protection for mini and micro SD card interfaces
- KBMF 2-line EMI filter and ESD protection with Termination and R pull-up for keyboards
- USBUF 2-line EMI filter and ESD protection with R pull-up, for USB interfaces
- USBDF 2-line EMI filter and ESD protection with R pull-up, for USB interfaces
- EMIF08-VID01F2 8-line EMI filter and ESD protection for display interfaces
- EMIF04-1005M8 4-line low capacitance EMI filter and ESD protection
- EMIF06-1005M12 6-line low capacitance EMI filter and ESD protection