WE CCMF: Ceramic Common Mode Filters for EMI Suppression and Signal Integrity in High Speed Differential Interfaces

WE-CCMF for High-Speed Interfaces

WE-CCMF ceramic common-mode filters help suppress unwanted common-mode noise in high-speed differential interfaces such as USB, HDMI, PCIe, and MIPI. This reduces EMI and helps prevent interference with wireless systems like Wi-Fi and Bluetooth, especially in the 2.4 GHz and 5 GHz bands.

Thanks to LTCC multilayer ceramic technology, WE-CCMF offers strong common-mode attenuation while preserving differential signal integrity. Measurement results show more than 30 dB suppression at key wireless frequencies with low insertion loss, making the filters suitable for high-speed data lines up to 10 Gbit/s and beyond.

Content:

• Introduction to common-mode noise in high-speed interfaces
• Impact of noise on Wi-Fi/Bluetooth and antenna de-sense
• Overview of WE-CCMF LTCC filter design and operating principle
• Key performance data for EMI suppression and signal integrity
• Eye diagram results for selected WE-CCMF part numbers

Download: ANP093