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EMI filter arrays with ESD protection target cellphones

Posted: 07 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:EMI filter? ESD protection cellphone data interfaces?

OnChip Devices Inc. has introduced a family of EMI filter arrays with onboard ESD protection in a variety of TDFN and ?DFN package options. Specifically designed for high-speed data interfaces in mobile phones, this EMF110x family is offered in 4-channel, 6-channel and 8-channel filter arrays.

The EMF110x series, which includes the EMF1100, EMF1101, EMF1102 and EMF1103 devices, is said to deliver excellent S21 characteristics with extremely low parasitic inductance of 10pH due to the package ground pad. These devices are capable of attenuating unwanted signals over the RF band between 800MHz and 2.9GHz.The EMF110x provides ESD protection up to 15kV contact discharge per IEC61000-4-2 Level 4 specifications.

Each EMF110x device features an application-specific cut-off frequency (105MHz to 210MHz) and is optimized for LCD and camera interfaces. The TDFN package has a thickness of 0.75mm and is offered in both the 0.4mm and 0.5mm pad pitch. The ?DFN package has a thickness of 0.5mm and a pad pitch of 0.4mm.

Pricing ranges from 9 cents to 21 cents, depending on the package type and the number of filter channels for production volumes.

- Gina Roos

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