NXP Semiconductors has announced the availability of a new family of common mode filters with integrated ESD protection for high-speed MIPI D-PHY and HDMI interfaces. The new PCMF series offers a typical common mode rejection of more than 12 dB in the band between 300 MHz and 8 GHz. The PCMF2DFN1 (for two differential line pairs) and the PCMF3DFN1 (for three line pairs) are … [Read more...]
Integrated Chokes Feature Reduced Footprint and Increased Efficiency
Pulse Electronics Corporation has announced the release of the PA4040 series of chokes, which integrate a common mode (CM) and differential mode (DM) choke into the same component. According to the company, combining two separate magnetic components into a single integrated component reduces power losses across the EMI filter portion of the power supply because it reduces the … [Read more...]
Miniature Chip Bead Ferrites for Mobile Devices
Würth Elektronik has released a new miniature chip bead ferrite in the standard 0201 chip format. According to the company, this package design increases packing density of components on circuit boards three-fold compared with the chip bead ferrite packages previously available on the market. Ideal for mobile devices, the new chip bead ferrites offer broadband interference … [Read more...]
Low-EMI Oscillators with 1.9V Supply Voltage
Saelig Company, Inc. has introduced the new 18HM series oscillators to the Euroquartz range of spread spectrum low-EMI oscillators. The low-cost oscillators offer the significant advantage of reducing EMI at the source— the system clock oscillator—removing the need to employ costly shielded backplanes, ferrite cores and similar techniques to reduce EMI. Featuring a supply … [Read more...]
A National Plan for EMP Protection (Part 2) – Protection of Buildings
Don White Consultant, Don White Consultants Jerry Emanuelson Consultant Part 1 of this article addressed a proposed national plan for U.S. EMP protection. Part 2 of the article presents methods and techniques for EMP protection of buildings, solar rooftops and other structures. As such, Part 2 covers details of shielding, bonding, grounding, and cable or device surge … [Read more...]
Mitigating Excessive Emissions, 2nd Edition
Donald L. Sweeney and Marilyn Sweeney D.L.S. Electronic Systems, Inc. Mitigating Excessive Emissions was originally written in 1988 and presented at the IEEE EMC Symposium in Atlanta Georgia. The concept and paper have been used by the author hundreds, if not thousands, of times to illustrate what he calls “The Barbell Model.” This illustrates, in very simple terms, how … [Read more...]
RF Capacitor Array for Tunable Filters in Consumer Wireless Applications
Tunable RF technology developer WiSpry has announced the WS1042 tunable RF quad capacitor array optimized for tunable filter applications. According to the company, this passive, non-fixed device enables RF designers to build adaptive frequency wireless networks, leveraging the highest possible Q that is required for widely tunable filter applications. Able to change filter … [Read more...]
Advanced Filters Solve Complex LTE Interference Challenges
RF solutions developer TriQuint Semiconductor, Inc. has announced several new filters that utilize the company's advanced acoustic wave filtering technologies to address LTE interference problems in next-generation smartphones and other mobile devices. "TriQuint's expanding line of advanced filters solves challenging LTE interference issues for mobile device manufacturers and … [Read more...]
LCL Filters for Recuperative Frequency Converter Systems
TDK Corporation has released a new series of EPCOS LCL filters for recuperative frequency converter systems. Consisting of a power choke, a capacitor bank with damping resistors and a robust choke, these new high-performance filters satisfy IEC / TS 62578 recommendations for EMI emissions between 9 kHz and 150 kHz. In combination with in combination with a recuperative … [Read more...]
Flexible Ferrites Offer EMI Shielding and Noise Suppression
Fair-Rite Products Corporation has announced the availability of new flexible ferrites. Available in four thicknesses and six material grades, the RoHS-compliant flexible sheets block noise at lower frequencies and absorb it at higher frequencies. The NiZn ferrite is placed between a 0.01 mm layer of PET film and 0.02 mm adhesive tape. Each sheet can be cut to size enabling it … [Read more...]
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