IRVINE, Calif., Sept. 27, 2007 (PRIME NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC) a leading manufacturer of analog and mixed signal integrated circuits, has announced a new space-saving multichip power amplifier for space constrained 2.4GHz WLAN front-end applications.
Designated the LX5540(tm), the new device combines an advanced two-stage HBT power amplifier with a fully matched low noise amplifier in an ultra low profile package that's 0.45mm high by 3mm square. Its small integrated packaging saves board space and reduces component count for small form factor, low profile wireless LAN designs targeting mobile applications.
-- High performance integrated 2.3-2.5GHz operation -- Power amplifier and LNA integrated in 3mm square footprint -- Targets small form factor, low profile 802.11b/g/n applications
The fully matched LNA requires no external matching components. The power amplifier stage includes output pre-matching and active bias circuits. It is ideally suited for 802.11b/g/n applications operating from a low 3.3V supply.
"Our new LX5540 multichip power amplifier is the first in a new family of integrated solutions for front end amplifiers. It continues Microsemi's leadership position in focusing on small size and high efficiency for wireless LAN applications," said Steve Litchfield, Microsemi Executive Vice President and President of the Analog Mixed Signal Group. "Our designers save space without sacrificing performance," he said.
The LX5540 combines a two-stage monolithic microwave integrated circuit (MMIC) power amplifier, manufactured in an advanced InGaP HBT process and a new InGaAs E-pHEMT (enhancement mode pseudomorphic HEMT) low noise amplifier. It operates from a single 3.3V single polarity power supply and features active bias and on-chip RF decoupling.
At 3.3V supply, the LX5540 achieves a power gain of up to 28dB between 2.3GHz and 2.5GHz with a low quiescent current of 80mA. Its error vector magnitude (EVM) is a low 3 percent across the 2.3 to 2.5GHz frequency range at 20dBM OFDM output power and at 145mA total DC current input. The LNA provides 14dB gain and a 1.5dB noise figure.
The LX5540 is currently in production and available for immediate sampling. Technical information is available on the Microsemi web site, http://www.microsemi.com. Samples can be ordered through this site, or from Microsemi sales representatives and authorized distributors. In 10K lot quantities the unit price is $0.60.
About Microsemi Corporation
Microsemi, with corporate headquarters in Irvine, California, is a leading designer, manufacturer and marketer of high performance analog and mixed signal integrated circuits and high reliability semiconductors. The Company's semiconductors manage and control or regulate power, protect against transient voltage spikes and transmit, receive, and amplify signals.
Microsemi's products include individual components as well as integrated circuit solutions that enhance customer designs by improving performance and reliability, optimizing battery performance, reducing size or protecting circuits. The principal markets the company serves include defense, commercial air, satellite, medical, notebook computers, LCD TVs, mobile, and connectivity applications. More information may be obtained by contacting the company directly or by visiting its web site at http://www.microsemi.com.
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Investor Inquiries: David R. Sonksen, Microsemi Corporation, Irvine, CA (949) 221-7101.