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Akros Releases World's Smallest Footprint Power over Ethernet Powered Device Family.


EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC.  and Surge Resilient; Highly Integrated Devices Provide Seamless Integration An addition of a new application, routine or device that works smoothly with the existing system. It implies that the new feature or program can be installed and used without problems. Contrast with "transparent," which implies that there is no discernible change after installation.  of Advanced Power Management, Ethernet Communications and High Voltage The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X-rays and particle beams, to  Protection

FOLSOM, Calif. -- Akros Silicon, Inc. today announced the availability of its AS1100 family of devices offering the smallest footprint and highest integration for Power over Ethernet Power over Ethernet or PoE technology describes a system to transmit electrical power, along with data, to remote devices over standard twisted-pair cable in an Ethernet network.  (PoE) Powered Device (PD) applications. The AS1100 family enables customers to bring to market higher performance products including VoIP phones, IP security cameras and wireless LAN A local area network that transmits over the air typically in the 2.4 GHz or 5 GHz unlicensed frequency band. It does not require line of sight between sender and receiver. Wireless base stations (access points) are wired to an Ethernet network and transmit a radio frequency over an area  access points.

With video surveillance rapidly migrating to IP networks, Mark Kirstein, vice president of multimedia content at iSuppli, commented, "Semiconductors enabling video surveillance equipment such as, cameras, DVRs and IP video servers, will grow to an estimated $2 billion in revenue by 2011. Companies that are able to innovate and capitalize on Cap´i`tal`ize on`   

v. t. 1. To turn (an opportunity) to one's advantage; to take advantage of (a situation); to profit from; as, to capitalize on an opponent's mistakes s>.
 this next-generation of semiconductor solutions - by networking the equipment - will capture a strong portion of the market in this rapidly growing industry."

The AS1100 family includes the AS1113 device for IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. [R] 802.3af-2003 specification power levels and the AS1124 device for either 802.3af or 802.3at pre-standard power levels. The innovative silicon solutions, built on standard HV CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes.  technology, include system-level circuitry for lower EMI emissions and robust surge protection See surge suppression and traffic surge protection.  in addition to the PD controller functionality.

The AS1113 and AS1124 devices include a series of platform tested circuit capabilities to assist system designers in providing solutions that meet or exceed the current regulatory and extreme environmental usages. The AS1113 for 13W applications includes the current 802.3af PD standard. The AS1124 for 24W applications encompasses the pre-802.3at standard with "two finger classification" and is backward compatible to current 802.3af customer needs.

The AS1100 family combines rectification and protection circuitry with a PD controller and a DC-DC DC-DC Direct Current to Direct Current (power conversion)  controller. This high level of integration provides significant reliability and protection advantages, as well as simplifies the PoE PD design. The devices provide seamless support for local power and over temperature protection. Additionally, the pin compatibility between the AS1113 and AS1124 allows the designer to use the same PCB PCB: see polychlorinated biphenyl.
PCB
 in full polychlorinated biphenyl

Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound.
 for higher power applications, often without the need for a complete redesign.

The AS1100 family also provides advanced power management through integration of a hot-swap switch and a DC-DC controller that operates from a switched input voltage and includes soft-start and current limiting functions. The DC-DC architecture is a current mode converter, which can be configured with external component changes for either fly-back, forward, or buck topologies to support non-isolated or isolated switching topologies. The dual switch architecture minimizes noise, maximizes efficiency and reduces the switch breakdown requirements for a lower cost solution. Akros offers optimized yet flexible silicon solutions, enabling its customers to bring to market higher performance PoE PD products with low cost and small footprint.

The AS1100 is fully integrated and architected at a system level to provide the following features:

* Fully supports IEEE[R] Std. 802.3af-2003 and supports pre-standard IEEE[R] Std. 802.3at-2006 power needs

* Meets IEC (International Electrotechnical Commission, Geneva, Switzerland, www.iec.ch) An organization that sets international electrical and electronics standards founded in 1906. It is made up of national committees from over 60 countries.

IEC - International Electrotechnical Commission
 61000-4-2/3/4/5/6 and IEC 60950 requirements for Surge, EMI and Isolation

* Integrated rectification and protection for board level surge meets > 16.5kV air discharge (IEC61000-4-2), > 8kV contact discharge (IEC61000-4-2) and > 6kV Surge (IEC61000-4-5)

* Integrated DC-DC converter with reduced EM emission for CISPR CISPR ComitĂ© Internationale SpĂ©cial des Perturbations Radioelectrotechnique (International Special Committee on Radio Interference, IEC) 22/FCC part 15 Class B applications

* Programmable DC current limit up to 800mA

* Provides extended classification levels for higher power PD applications (pre 802.3at compliant)

* Provides seamless support for local power

* Over temperature protection

In its most recent 5-year forecast, Dell'Oro Group predicts that PoE shipments will grow from 32M ports in 2006 to 145M ports in 2011.

"The AS1100 family of devices is the industry's first highly integrated PD family that addresses the needs of the high growth PoE market," said Ven Shan, vice president of marketing, Akros Silicon. "The customer response we have seen indicates that Akros engineers have set a new bar in PD solution excellence that will be well received by the entire PoE eco-system. The AS1100 family is unique in addressing EMI and surge resilience, offering a superior level of integration that allows PoE PD manufacturers to take advantage of the industry's smallest footprint while saving overall system cost and maximizing system efficiency."

A key requirement of POE systems is immunity to overvoltage and surge events. Integrating the diode bridge and protection circuitry significantly increases the reaction time of protection devices and PHY See physical layer and physical.  immunity to over-voltage stress events. Integrating these components also substantially reduces board-to-board variation and increases overall manufacturability providing the customer with time to market advantage.

AS1113 and AS1124 devices are available in a 20-pin QFN QFN Quad Flat No-Lead
QFN Queen Fan Newsletter (rock band)
QFN Quad Flat No Leads
 Reduction of Hazardous Substance (RoHS) compliant packages. The AS1113 and AS1124 are priced at $1.33 and $1.46 for 1kU quantity respectively.

About Akros Silicon

Headquartered in Folsom, California, Akros Silicon (Akros is a Greek word for "edge") is a leading provider of highly differentiated system-level integrated circuits that provide advanced power management to the edge of the network. Akros Silicon's disruptive silicon technology enables large scale deployment of network-attached appliances, such as VoIP phones, wireless LAN access points, RFID tag readers, point-of-sale terminals, networked cameras, remote access and home-networked systems--accelerating the convergence of data, audio, and video applications. For more information, visit http://www.akrossilicon.com
COPYRIGHT 2007 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2007, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:May 22, 2007
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