EMI filters are low-pass, band-pass, or high-pass filters combined with ESD protection diodes. They also integrate pull-up and/or pull-down resistors, depending on the application.
ST EMI filters with integrated ESD protections help protect data lines against ESD surges and remove EMI noise. They help designers ensure compliance with the 2014/30/EU directive and EN 55032 / CISPR 32* and EN 55035 / CISPR 35** technical standards.
*electromagnetic compatibility of multimedia equipment - emission requirements
**electromagnetic compatibility of multimedia equipment - immunity requirements
EMI filters applications
EMI filters target low-speed digital interfaces for analog applications, such as data lines in memory cards, USB low-speed or full-speed interfaces, microphones, speakers, displays, and multipurpose interfaces.