Product category:
EMC Components
News Release from: 2001 Electronic Components | Subject: PulseCore
Edited by the Electronicstalk Editorial
Team on 06 February 2003
Active approach to EMI suppression
Alliance Semiconductors' PulseCore Division has developed a versatile approach to EMI suppression.
Suppression and containment of EMI is a difficult problem for designers of electronic systems The problem becomes more demanding to manage as system operating frequencies and complexity increase
This article was originally published on Electronicstalk on 30 Jan 2003 at 8.00am (UK)
Related stories
Core takes convertor onboard for easy embedding
Rabbit Semiconductor's newest RCM3400 core module is the first RabbitCore with onboard analogue-digital convertors.
Multiplexers take on high-speed video switching
Providing a bandwidth of over 240MHz and a slew rate of 450V/us, the ZXFV301 and ZXFV302 multiplexer chips from Zetex serve a broad range of video and other high-speed signal switching applications.
Alliance Semiconductors' PulseCore Division has developed a versatile approach to EMI suppression.
With a new range of integrated circuits which use spread spectrum modulation (SSM), the technology provides a lower cost, more reliable alternative to conventional EMI management PulseCore's first generation product line - now available from 2001Electronic Components - implements spread spectrum modulation techniques in conjunction with propriety direct digital synthesis (DDS).
Features include selectable frequencies (10-166MHz) and modulation characteristics (frequency deviation, modulation rate etc), low jitter and up to 15dB of system attenuation.
Traditional EMI suppression requires the use of many passive components such as ferrites and chip inductors.
PulseCore eliminates much of these "zero-value-add" components with an integrated circuit that is placed in the path of the system clock.
The edge of the clock signal is modulated using the most efficient and optimised profile approved by the FCC.
By itself, a PulseCore IC is capable of reducing system EMI by up to 20dB.
Offered in a variety of 8-lead packages, these products provide an extremely versatile and cost-effective solution for numerous applications ranging from networking, wireless, Internet appliances to digital consumer products and PC peripherals.
EMI-lator, PulseCore's proprietory software program, allows the users to further reduce their risk and development cycle time by resolving EMI compliance issues at the very beginning of the design phase.
EMI-lator takes into account spread spectrum (SS) parameters as well as system parameters such as modulation rate, deviation, trace lengths, loads, and signal strengths.
Closely correlated against PulseCore's family of EMI suppression devices, EMI-later provides the user the optimal selection and configuration for EMI suppression.
This complete hardware/software solution eliminates the trial-and-error approach to EMI suppression and improves product time to market for customers worldwide.
• 2001 Electronic Components: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
