TriQuint Semiconductor Introduces Two Downconvert Mixer-Amplifier RFICs for CDMA Cell Phone Applications

HILLSBORO, Ore. These ICs Provide On-Chip Gain Steps with a Mode Selection and Full IS-95/AMPS Compliant Operation

TriQuint Semiconductor, Inc. (Nasdaq:TQNT) announces a companion pair of RFIC CDMA downconvert mixers to compliment its concurrently released LNAs. The TQ5132 RFA/Mixer, designed specifically for Cellular band CDMA/AMPS receive applications, and the TQ5633 RFA/Mixer, designed specifically for PCS band CDMA receive applications, meet the requirements of both IS-95 and AMPS standards. These new devices have been designed to be used with multiple TriQuint LNA ICs: The TQ5132 with either the TQ3131 or TQ3132 LNAs and the TQ5633 with either the TQ3631 or TQ3632 LNAs.

When used as a pair, the RFA/Mixers provide tri-mode operation in the 800 MHz and 1900 MHz bands. Both RFA/Mixers incorporate on-chip switches with various operational modes: The three-state switch on the TQ5132 selects CDMA with gain steps or AMPS mode while the TQ5633 two-state switch selects either a CDMA high or low gain mode. When the TQ5132 is used with the TQ3131 or TQ3132 CDMA/AMPS LNA (and the TQ5633 is used with the TQ3631 or TQ3632 CDMA LNA), the RFIC set provides full receiver functionality including four electronically selectable gain states. With this selectability, the handset designer can optimize for current consumption, linearity, and gain.

PERFORMANCE

Of particular interest in the PCS band unit (TQ5633) is the use of a balanced mixer approach which allows IF operation at 110 MHz and achieves 1/2 IF rejection. The CDMA/AMPS band unit (TQ5132) has an IF output range of 85 to 130 MHz. Both devices utilize internal RF port matching to 50 ohms resulting in low RF port VSWRs and eliminating the need for external component matching of this interface. Input intercept points are +2.5 dBm for the 800 MHz part and -0.5 dBm for the 1900 MHz part typically. Gain levels are similar at 15 dB for the 800 MHz part and 16 dB for the 1900 MHz part at max gain settings. Low operating currents range from a maximum of 26.5 mA at highest gain and linearity settings to 10.3 mA in the AMPS mode.

Ms. Cathy Arb, TriQuint s Wireless Division Product Engineer said, "These components provide a full tri-mode solution with an IF frequency of 110 MHz for both cellular and PCS bands while supporting the 1/2 IF rejection requirement on the PCS band. By using 110 MHz IF for both bands an IF filter can be eliminated thus lowering the cost and physical space needed in the phone."

PACKAGE

Both RFA/Mixers are packaged in small, SOT23-8 packages to minimize PC board space utilization.

PRICE AND DELIVERY

Pricing for the TQ5132 CDMA/AMPS RF IC is $1.09 and for the TQ5633 CDMA PCS RF IC is $1.09, in 1000 piece quantities. Both RFICs are available from stock.

SUPPORT

Technical support is available along with data sheets, evaluation boards, and application notes. The TQ5132 and TQ5633 data sheets are available on TriQuint s website in pdf format ( http://www.triquint.com/Products/Wireless/TQ5132/TQ5132.pdf and http://www.triquint.com/Products/Wireless/TQ5633/TQ5633.pdf.)

This press release contains both historical information and forward-looking information. Numerous important factors affect the Company s operating results and could cause the Company s actual results to differ materially from the results indicated in this press release or in any other forward-looking statements made by, or on behalf of, the Company, and there can be no assurance that future results will meet expectations. Results could differ materially based on various factors, including the Company s performance and market conditions. Additional considerations and important risk factors are described in the Company s Report on Form 10-K and 10-Q filed with the Securities and Exchange Commission and the Company s Common Stock Offering Prospectus dated July 13, 1999, copies of which are available on request from the Company.

TriQuint Semiconductor, Inc. (Nasdaq:TQNT) is a leading worldwide supplier of a broad range of high performance gallium arsenide (GaAs) integrated circuits. TriQuint s products span the RF and millimeter wave frequency ranges and employ analog and mixed signal circuit designs. They are used in wireless communications, telecommunications, data communications and aerospace systems. TriQuint offers both standard and customer specific products as well as foundry services. TriQuint s two operations, in Oregon and Texas, are both certified to the ISO 9001 international quality standard.

TriQuint is headquartered at 2300 NE Brookwood Parkway, Hillsboro, OR 97124 and can be reached at 503/615-9000 (fax 503/615- 8900). Visit the TriQuint website at http://www.triquint.com.

CONTACT: TriQuint Semiconductor Inc. Cathy Arb, Product Marketing Engineer, 503/615-9336 Fax: 503/615-8902, carb@tqs.com Rob Hamilton, Dir. Strategic Marketing & Communications 503/615-9407, Fax: 503/615-8901, rhamilton@tqs.com