Microtune and OASIS SiliconSystems Jointly Develop Reference Design That Accelerates Deployment of MOST-Enabled Car Radios

PLANO, Texas & KARLSRUHE, Germany--Nov. 1, 20032, 2003--

Highly Integrated Reference Design Enables Automotive Customers to Easily Add, with Reduced Space and Cost, AM/FM Tuner Functionality to Their MOST Entertainment System

Microtune(R), Inc. (Pink Sheets:TUNE) and OASIS SiliconSystems today announced the availability of a jointly developed Reference Design that accelerates the deployment of AM/FM car radios that operate in Media Oriented Systems Transport (MOST(R))-enabled entertainment systems. Targeted to automotive manufacturers and suppliers, the RadioTuner 4 MOST Reference Design features Microtune's MT1384 AM/FM tuner and OASIS' OS88350 Radio Controller, combining the two companies' high-performance front-end and back-end technologies into a versatile, MOST-based AM/FM receiver.

The RadioTuner 4 MOST Reference Design is a highly integrated solution, packaged in a small form factor (61x138x31mm), that enables customers to flexibly support various automotive AM/FM system configurations, while delivering significant time-to-market, size, and price/performance benefits. The Reference Design is based on a two-chip solution, including the on-board OASIS radio controller and an AM/FM radio IC, providing for significant size and cost advantages compared to the three-to-five chip solutions currently available.

MOST: THE AUTOMOTIVE INDUSTRY'S NETWORKING TECHNOLOGY STANDARD

Based on a fiber-optic bus, MOST has emerged as the automotive industry's high-speed digital networking standard. It serves as the backbone technology of in-car infotainment systems. The use of the MOST networking technology permits carmakers and suppliers to easily add a host of multimedia devices, such as CD players, AM/FM radios, navigation systems, cell phones, and in-car PCs, as modular functions in the automotive environment, while meeting the specific requirements of any vehicle.

"OASIS is a founding member of the MOST Cooperation and is recognized as a leading developer of integrated solutions for this optical networking standard," said Barry Koch, Vice President and General Manager of Microtune's Transportation Electronics Business. "OASIS' strong market position, coupled with Microtune's industry-leading RF technologies and systems expertise, positions us to aggressively meet the requirements of our automotive customers as they migrate to MOST-based solutions."

"As global auto manufacturers adopt the MOST standard, they require one-stop technical solutions that deliver superior performance, low price points, and ease of implementation," said Herbert Hetzel, President and CEO, OASIS. "By working together, Microtune and OASIS can accelerate time-to-market for our customers by providing the means to deliver new classes of MOST-enabled applications and services."

RADIOTUNER 4 MOST REFERENCE DESIGN

The RadioTuner 4 MOST Reference Design offers a complete, ready-to-evaluate, customize and produce AM/FM tuner subsystem that integrates easily into MOST-enabled entertainment systems. It performs the processing necessary to implement an AM/FM receiver and to place its audio and data information onto a MOST network. Parameters, such as receiving frequency, can be set using control messages over the MOST network. The integrated MOST NetServices, a key component of the OASIS solution, provides the software services needed to communicate with other MOST devices.

As a key advantage, the Reference Design enables a remote tuner solution. The RadioTuner 4 MOST system can be mounted near the antenna, eliminating the cable losses of typical systems that have the tuner deployed in the dashboard head unit.

PRICE AND AVAILABILITY

The RadioTuner 4 MOST Reference Design is available now and is priced at $990.00. More details can be accessed under http://www.oasis.de/products/tools/rapidprototypingtools/ mostradiotuner.htm (Due to the length of this URL, it may be necessary to copy and paste this hyperlink into your Internet browser's URL address field.) or requested at sales@oasis.de.

ABOUT THE MICROTUNE'S MT1384 TUNER

Based on Microtune's field-proven AM/FM tuner technology, the MT1384 provides a highly specialized tuner subsystem for advanced automotive audio electronics. Implementing innovative agile filter adjustment techniques, the MT1384 analyzes the received signal and dynamically adjusts its filters to the best-suited configuration. This feature, together with excellent sensitivity, superior adjacent channel and multipath suppression, and an integrated AM noise blanker, allows the 1384 series to produce clear sound with minimal noise and interference, even in the most critical receiving situations. The MT1384 also supports the RF frequency ranges of the U.S., Japan and Europe, providing a compact, world-standard RF tuner that meets the high-end performance and quality requirements of global markets.

ABOUT THE OASIS OS88350 RADIO CONTROLLER

The OS88350 single chip contains two digital signal processors (DSPs) and full microprocessing functionality and is a one hundred percent MOST-compliant controller. The stereo decoding, the RDS/RBDS processing and the noise management is handled on chip. The chip enables alternative frequency track switching and is engineered to exceed the performance of standard radios. With these functions, the OS88350 is designed as a unique AM/FM receiver processor compared to alternative solutions in the market.

ABOUT OASIS

Since 1996, OASIS SiliconSystems AG develops and markets mixed-signal Integrated circuits and opto-electronic systems for the networking of multimedia components to the automotive industry. With Media Oriented Systems Transport (MOST) technology developed by the company's founders, up to 64 different multimedia peripheral devices can be networked in one segment easily. OASIS offers not only real-time systems for the present, but also provides for customer-oriented total solutions of the future. In addition to the current focus on the automotive environment, OASIS is also broadening into other markets. Find more under www.oasis.com.

ABOUT MICROTUNE

Microtune, Inc. is a silicon and subsystems company that designs and markets radio frequency (RF)-based solutions for the worldwide broadband communications and transportation electronics markets. Inventors of the MicroTuner(TM) single-chip broadband tuner, the Company offers a portfolio of advanced tuner, amplifier, and transceiver products that enable the delivery of information and entertainment across new classes of consumer electronics devices. The

Company currently holds 28 U.S. patents for its technology, with approximately 50 applications pending approval that span its RF products, containing more than 2000 supporting claims. Founded in 1996, Microtune is headquartered in Plano, Texas, with key design and sales centers located around the world. The website is www.microtune.com.

ABOUT THE MOST COOPERATION

The concept for the MOST Cooperation began as an informal cooperative effort in 1997. Since the Cooperation was founded in 1998, 20 international carmakers and more than 50 key component suppliers are now working with the MOST technology and contributing towards its innovation. Through the MOST Cooperation, all members combine their expertise and ambitious efforts to establish and refine a common standard for today and tomorrow's needs of automotive multimedia networking.

FORWARD-LOOKING STATEMENT

This press release contains forward-looking statements that involve risks and uncertainties that may cause actual results to differ from these expectations. Factors which could cause actual results to differ include the Company's ability to develop new products that comply with industry standards; the ability to manufacture new products in the time frame required, the ability to sell new products at anticipated levels, the ability to develop new products within anticipated cost range, and general economic conditions that have affected the broadband communications, automotive and wireless connectivity markets recently, any of which may cause the Company's financial results to fluctuate. Factors that could also cause actual results to differ include: the effects of competition, risks associated with our customers, manufacturing risks, risks associated with securities litigation, intellectual property litigation, and other litigation to which we are party. For a discussion of factors which could impact Microtune's financial results and cause actual results to differ materially from those in forward-looking statements, please refer to Microtune's recent filings with the SEC, particularly the Form 10-K for the year ended December 31, 2002 and Form 10Q for the quarters ended March 31, 2003 and June 30, 2003. Microtune assumes no obligation to update the forward-looking information contained in this news release.

EDITOR'S NOTE: Microtune is a registered trademark and MicroTuner, MicroStreamer and VideoCaster are trademarks of Microtune, Inc. OASIS and OptoLyzer are registered trademarks owned by OASIS SiliconSystems AG. MOST is a registered trademark for the sole use to the MOST Cooperation and its Partners and Associated Partners. All other company and/or product names may be trade names, trademarks and/or registered trademarks of the respective owners with which they are associated. Features, pricing, availability, and specifications are subject to change without notice.