A new family of EMI filter arrays from OnChip Devices comes with onboard ESD protection in various TDFN and uDFN package options. Crafted specifically for high-speed data interfaces in mobile phone, the EMF110x family is offered in 4-channel, 6-channel, and 8-channel filter arrays. They are reported to deliver excellent S21 characteristics with extremely low parasitic … [Read more...]
Catalog Details Wide Line of Shielding Products
A new catalog from Tech-Etch details the company's EMI/RFI shielding product line, including all sizes, shapes, compositions, mounting options, and seal types. This 52-page catalog features to-scale technical drawings, compression values, and metal thicknesses for over 100 BeCu and stainless steel finger stock shielding profiles--including low gasket profiles; soft no-snag … [Read more...]
Spread Spectrum IC Reduces EMI in USB Applications
A USB 2.0 Peak EMI Reduction IC from PulseCore Semiconductor uses spread spectrum technology to achieve compliance in USB applications. The PCS3P73U00A is based on patent-pending technology and is said to simplify EMI reduction while reducing or eliminating the need for expensive metal shielding, ferrite beads, conductive paint, or filtering networks. Spread spectrum clocking … [Read more...]
ISO Amended Standard: Road Vehicles & Electrical Disturbance
The International Standards Organization has published ISO 7837-1 Amd 1: 2008 entitled "Road vehicles - Electrical Disturbance by conduction and coupling - Part 2: Commercial vehicles with nominal 24-V supply voltage - Electrical transient conduction along supply lines only - Amendment 1. This new publication amends ISO 7637-2: 2004. For more information, or to purchase this … [Read more...]
IEC Issues Three New EMC Standards on MV, HV, and EHV Power Supplies
The International Electrotechnical Commission (IEC) has issued three new standards on electromagnetic compatibility-specifically IEC 61000-3-6 Ed. 2.0; IEC 61000-3-7 Ed. 2.0; and IEC 61000-3-13 Ed. 1.0. All deal with the assessment of emission limits. The first 6100-3-6 is a technical report, informative in nature that provides guidance on principles that can be used as the … [Read more...]
Solving the Galvanic Corrosion Issue in EMI Shielding
Tungsten carbide/aluminum composite particles inhibit galvanic corrosion of aluminum. An on-going issue in the design of reliable EMC shielding is galvanic corrosion of aluminum. How can an aluminum frame be protected from galvanic corrosion if it contacts an EMI gasket containing non-aluminum particles? Chromate conversion coatings have long been used to reduce the corrosion … [Read more...]
Off-Chip Decoupling Measures: The EMC Perspective
Off-chip decoupling, or buffering, is a necessity. Over the years, many papers and articles have been written about optimizing off -chip IC decoupling. Many IC vendor application recommendations feature a cluster of decoupling capacitors adjacent to the IC, in close proximity to one another—viz. an electrolytic capacitor along with a small and a large value ceramic capacitor … [Read more...]
DOD Issues RFQ for RF Filter with Estimated Contract Value of $43,352.12
The U.S. Government is interested in issuing an award for a one-year contract with an additional year option for an RF filter (NSN 5915001288130). The DOD estimates the value of this contract at $43,352.12. Learn more about this RFQ by visiting the Federal Business Opportunities website. … [Read more...]
EMI Test Software Targets Precompliance Testing
R&S®ES-SCAN EMI test software from Rohde & Schwarz has been crafted especially for precompliance and precertification EMI testing. Designed for use with R&S® ESPI test receivers, this package delivers a 32-bit application for testing in accordance with commercial standards. Its state-of-the-art MS Windows-style, straightforward user interface allows for quick … [Read more...]
New Agers Protest Effects of WiFi
The UK’s Telegraph reports that new agers in Glastonbury have mounted protests against the town’s £34,000 free WiFi network. It seems that the electromagnetic fields associated with WiFi are being blamed for interfering with positive energy fields—i.e., chakras of the human body and ley lines of the earth. To counter this damage, astrologers, soothsayers, and alternative … [Read more...]
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