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Protected Common Mode Filters Suit High Speed Serial Interfaces

Wed, 05/25/2011 - 6:29am
common mode filter devicesON Semiconductor has introduced a new range of common mode filter (CMF) devices with integrated electrostatic discharge (ESD) protection to suppress noise and provide strong signal integrity. The new EMI2121, EMI4182 and EMI4183 devices are highly suitable for implementation in smartphones, media tablets, wireless connectivity dongles and digital camcorders, as well as set top boxes and DVD players. The EMI2121 single pair CMF, EMI4182 dual pair CMF and EMI4183 triple pair CMF all offer a common mode rejection of 15 dB (typ) at 500 MHz and an insertion loss of 1.0 dB (typ) at 500 MHz. Their high differential mode bandwidth cutoff frequency ensures high levels of signal integrity. The devices feature integrated ESD protection that meets a peak discharge of 15 kilovolts (kV) per the IEC61000-4-2 standard. The new devices are optimized for protecting high speed differential ports using the Mobile Industry Processor Interface (MIPI) DSI, and MIPI CSI2 interface standards, as well as USB 2.0 - the current versions of High-Definition Multimedia Interface (HDMI). The protected CMF family of products supports data speeds of up to 3.4 Gbps, well above what is required for the MIPI, USB 2.0, and HDMI interfaces, while providing high levels of signal integrity.

ON Semiconductor
800-282-9855, www.onsemi.com
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