Sirenza Microdevices Announces Production Release of a New High Linearity Amplifier IC with Patented Self-Bias Operation.

BROOMFIELD, Colo. -- Sirenza Microdevices (NASDAQ:SMDI) today announced the production release of the SXE-1089Z, a new high linearity cascadable pHEMT amplifier IC. Its patented self-bias Darlington topology, coupled with a robust e-mode pHEMT process, allows the SXE-1089Z to deliver excellent performance normally found in discrete transistor or power amplifier topologies. The SXE-1089Z also offers "ease-of-use" for amplifiers in this power range with its fully integrated matching over 50-3000MHz.

"The SXE-1089Z is ideal for PA driver applications for TD-SCDMA and WCDMA applications requiring high linearity," stated Jeff Gudewicz, Sirenza's SBU director, standard and catalog products. "The patented self-bias topology allows designers to easily integrate into single-supply, 5 Volt applications without the need for any external dropping resistors."

Key performance characteristics of this advanced IC product include backed-off ACPR performance and excellent bias stability over temperature. Operating at 5V/128mA the SXE-1089Z delivers 13.2dBm IS95 channel power (880MHz) at -65dBc ACPR. Under WCDMA conditions at 2140MHz the SXE-1089Z delivers 9.5dBm at -65dBc ACPR. P1dB is 22.9dBm with 38.5dBm OIP3 at 1960MHz.

The SXE-1089Z is available for immediate shipment in a RoHS/WEEE compliant SOT-89 package. Samples and application design support are available by contacting Sirenza at [e-mail].

About Sirenza

Sirenza Microdevices is a supplier of radio frequency (RF) components. Headquartered in Broomfield, Colorado, with operations in China, Germany and the U.S., Sirenza and its subsidiary Premier Devices design and develop RF components for the commercial communications, consumer, and aerospace, defense and homeland security (A&D) equipment markets. Sirenza's integrated circuit (IC), multi-chip module (MCM) and passive product lines include amplifiers, power amplifiers, cable TV amplifiers, circulators, isolators, mixers, splitters, transformers, couplers, modulators, demodulators, transceivers, tuners, discrete devices, signal source components, government and military specified components, and antennae and receivers for satellite radio. Sirenza holds ISO 9001:2000 Quality Management System and ISO 14001:2004 Environmental Management System (registered by QMI) certifications for its Broomfield, Colorado manufacturing facility, and ISO 9001:2000 Quality Management System certifications for its Shanghai and Nuremberg manufacturing facilities. Detailed product information may be found on Sirenza's website at www.sirenza.com and at www.premierdevices.com.

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This press release contains forward-looking statements regarding future events, including any statements regarding future product performance, availability, and applicability to potential customer needs. We wish to caution the reader that such statements are, in fact, predictions, and that actual events or results may differ materially. In particular, we cannot assure you that the referenced products will be appropriate for any particular end customer solution, or that the products will exhibit such characteristics under all test parameters or in all customer applications. This press release makes no customer warranties, whether express or implied. Other risks that may cause actual results to differ materially from those contained in our forward-looking statements are included in our filings with the Securities and Exchange Commission, particularly our Form 10-K filed in March 2007.

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