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[ Jul 7, 2008 ]


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EMI news and hot articles

2007-5-23	ESD/EMI protection ICs optimized for 800MHz to 2.7GHz Semtech Corp.'s new EClamp239xP series of inductor-capacitor (L-C) protection devices feature greater attenuation, steeper amplitude roll-off and lower clamping voltage.
2007-4-9	Shielded inductors suit tiny, EMI-sensitive designs The new low-profile inductors from C&D Technologies feature an integral shield that makes them appropriate for space-constrained designs where EMI sensitivity is a concern.
2007-4-9	Four-PLL spread-spectrum timing chip cuts EMI Cypress Semiconductor introduced a four-PLL timing device with two spread-spectrum PLLs to reduce EMI.
2007-4-2	Reduce switcher EMI with frequency spreading When using multiple switching regulators is appropriate, multiphase synchronization offers clear benefits, including reduced EMI. As for the EMI benefits of SSFM, it depends on the bandwidths of interest. SSFM is not a substitute for proper design, but it may offer the improvement that achieves EMC compliance.
2007-3-27	EMI filters double ESD protection, cut PCB space NXP's ultrathin EMI filters enable handheld designers to reduce the size of their PCBs while doubling the level of integrated ESD protection.
2007-3-20	Buck regulator cuts noise, EMI filter requirements Intersil has launched a 2.5A, wide input voltage synchronous buck regulator that reduces noise and EMI filter requirements through programmable switching frequency and external synchronization.
2007-2-28	Circuit protectors offer longer lifespan, lower EMI Compared to bimetal breakers, Raychem's PolySwitch LVR circuit protectors offer greater flexibility, longer lifespan and lower EMI.
2007-1-30	Multichannel EMI filters save board space With a low profile of 0.6mm and a pitch between pins of 0.4mm, the new VEMI filter arrays from Vishay are designed to save board space and provide ESD protection in portable electronics.
2007-1-24	Tiny AC/DC eliminates EMI sans input filter Bias Power's BPS-2 series of universal single- and dual-output 2W AC/DC supplies features a patented circuit design that effectively eliminates line EMI without need for an input filter, all in a package measuring under 1 inch3.
2007-1-1	Low-EMI charge pump drives six white LEDs Allegro's A8434 touts a proprietary high-efficiency, low-EMI charge pump design, which provides a well regulated output for driving up to six white LEDs.
2006-11-2	Oscillator reduces EMI in high temperatures Maxim has introduced an integrated spread-spectrum, silicon EconOscillator that reduces EMI emissions in harsh automotive environments of -40¡ãC to 125¡ãC.
2006-10-11	EMI filters target cellphones supporting terrestrial DTV TDK said its new multilayer chip EMI filter arrays are the industry's smallest and lightest noise countermeasure components intended for mobile terminals that are compatible with terrestrial digital television broadcasts.
2006-10-9	EMI filter for cellphones has ESD countermeasure Designed for cellphones, TDK's MEA2010LV series devices combine the noise countermeasure functions of earlier EMI filter arrays with features that protect circuits from static electricity.
2006-10-9	Reducing Switcher EMI with Spread Spectrum Technology High Performance Analog Solutions from Linear Technology
2006-10-5	CMD touts 'thinnest' EMI filters for portables CMD has extended its family of ASIP devices that feature both EMI filtering and ESD protection in what the company touts as the thinnest and most compact packages available for use in mobile handsets.

2006-8-25	EMI test receiver features FFT-based time domain scan Rohde & Schwarz has introduced a new family of CISPR16-1-1-compliant EMI test receivers, said to be the first to offer Fast Fourier Transform (FFT)-based time domain scan capabilities.
2006-8-21	Laird Tech rolls out beryllium-free EMI solution Laird Technologies has introduced the Recyclable Clean Copper range of environmentally friendly, copper-based shielding gaskets that offer a beryllium-free EMI solution.
2006-8-16	New Allegro SMPS regulators feature low EMI noise , Allegro said its STR-W67xx series of low-power off-line SMPS primary regulators show lower EMI noise characteristics especially at more than 2MHz.
2006-7-13	EMI filters offer two noise attenuation levels Lambda has developed two series of easy-to-use industrial EMI filters that provide two levels of electrical noise attenuation in the same-size package.
2006-6-21	PCF gaskets improve LCD cushion, EMI shield Laird introduced new PORON Conductive Fabric (PCF) gaskets for LCD cushioning and EMI protection in handheld devices.
2006-6-20	Laird unveils colored EMI shielding gaskets Laird introduced aesthetically colored fabric-over-foam shielding gaskets as alternative to standard EMI shielding choices.
2006-6-16	EMI filters require no grounding Murata Manufacturing Co. Ltd has developed the NFA2ASN series of EMI filters, which do not require connection to the ground plane.
2006-6-5	New EMI filters optimized for Vicor V-I chip Picor has expanded its QPI QuietPower input filter product line with two product additions that are optimized for use with Vicor's V-I Chip devices.
2006-5-9	Resin-sealed EMI filters are RoHS compliant Spectrum Control offers RoHS/lead-free versions of its resin-sealed bolt-in EMI filters.
2006-4-6	EMI filter housed in tiny package for wireless handsets California Micro Devices offers its new generation Praetorian CM1452 EMI filter with ESD protection for wireless handsets.
2006-4-3	SFP EMI cage supports copper, optical transceivers dataMate Products expands its SFP product line with a four-port SFP EMI cage that can be used with both copper and optical small form-factor pluggable transceivers.
2006-3-30	EMI filters offer surge suppression Foster Transformer offers EMI filters with optional surge suppression.
2006-3-17	EMI adapter supports multiple interfaces The universal EMI adapter from Molex Inc. enables fast and easy conversion to SC, ST and FC user interfaces.
2006-3-15	Self-calibrating EMI receiver spans 20Hz to 18GHz AR Worldwide Receiver Systems has introduced the CER2018 receiver, an EMI test solution that self-calibrates on-demand at every frequency scan.
2006-3-6	EMI filter targets wireless handsets California Micro Devices has launched its next generation of Praetorian EMI filter with ESD protection for wireless handsets.

2006-3-3	EMI filters integrate ESD protection Vishay Intertechnology has launched six EMI filter arrays with integrated ESD protection diodes in ultra-small leadless, plastic packages.
2006-2-23	Tyco introduces CORCOM WG EMI filters Tyco's new EMI filter is designed for applications requiring a low-cost method of providing industry compliance for conducted EMI/RFI emissions.
2006-2-14	LVDS deserializers reduce EMI Maxim introduced the latest members of its high-speed LVDS SerDes family, which are hot-swappable, 21-bit, DC-balanced LVDS deserializers with programmable spread spectrum.
2006-1-19	EMI filter protects camera modules California Micro Devices has expanded its Praetorian ASIP inductor-based filter array family with the CM1470 EMI filter for camera module interfaces in wireless handsets.
2006-1-16	RAD-Hard DC/DC converter modules integrates EMI filter International Rectifier's new DC/DC converter modules deliver isolated output voltages from 1.5V to 15V with typical efficiency ratings up to 83 percent.
2006-1-16	LED drivers, with staggered outputs, cut EMI Allegro Microsystems' A6278 and A6279 LED drivers are touted to be the industry's only devices with a staggered delay (20ns on each output) to cut the effects of inrush current.
2005-12-23	EMI filters pack performance in small footprint California Micro Devices' new CM1418 and CM1419 EMI inductor-based filter arrays with ESD protection are aimed at audio applications in wireless handsets.
2005-12-15	EMI filter arrays provide 'cutting-edge' noise countermeasures TDK has developed what it touts as the world's first noise countermeasure products for use in mobile terminals that can receive terrestrial digital broadcasts.
2005-11-29	Tyco's new input filter module helps meet EMI requirements Tyco Electronics Power Systems released a new input filter module that provides a space efficient and cost effective solution to meet EMI limits mandated by various international agencies.
2005-11-18	New EMI filter from Murata slims down, beefs up performance Murata Electronics has developed a new surface-mount EMI suppression filter that boasts increased performance and a smaller footprint.
2005-11-7	Serializers and deserializers reduce cost, improves EMI Maxim Integrated Products released MAX9225/MAX9226 and the MAX9223/MAX9224 low-power LCDS serializers
2005-10-3	Startup tames EMI using spectral-diffusion scheme X-EMI Inc. uses a method of spectral diffusion that modifies system clocks to reduce EMI from various sources.
2005-9-6	Murata's new EMI filter mixes small size, large insertion loss Murata commercialized its BNX022 series of EMI suppression filters thar are suitable for noise suppression in DC power supply lines for amusement and industrial equipment.
2005-9-5	Smallest EMI filters save board space for wireless handsets California Micro Devices said its new 0.4mm pitch CSP Centurion electromagnetic interference filters set a new price/performance standard for the industry.
2005-8-11	X-EMI readies chips to cut EMI by 20 dB A startup with roots in the network-processor company SiTera Inc. has demonstrated a unique solution to electromagnetic interference problems at a vertical EMI show in Chicago.

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