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Integrated GPS Capability for Multi-band Wireless Phones
Posted: 23-May-2000 [Source: Qualcomm press release]

[A new integrated circuit from Qualcomm puts CDMA and GPS capabilities into a single package. This product is expected to work its way into handsets early next year.]

San Diego -- QUALCOMM Incorporated (Nasdaq: QCOM), pioneer and world leader of Code Division Multiple Access (CDMA) digital wireless technology, today announced the RFR3300(tm), an RF-to-IF (radio frequency to intermediate frequency) front-end receiver designed for cellular, personal communications service (PCS) and Global Positioning System (GPS) signal processing. The RFR3300 device is the first in the CDMA industry to integrate GPS capability with a CDMA front-end receiver. Successor to QUALCOMM's RFR3100(tm) receiver, the RFR3300 device is silicon germanium (SiGe) BiMOS radio frequency integrated circuit (RFIC) that provides high linearity with very low power consumption. The advanced integration of a GPS receiver into a CDMA/AMPS receiver eliminates the need to add an extra stand-alone GPS RF receiver. Together with QUALCOMM's MSM3300(tm) Mobile Station Modem (MSM(tm)) chipset and IFR3300(tm) baseband receiver, the RFR3300 device offers the most cost-effective and high-performance solution for dual-band (PCS CDMA and AMPS) or tri-mode (cellular CDMA, AMPS, and PCS CDMA) phones with QUALCOMM's gpsOne(tm) position location technology. The gpsOne solution exceeds the Federal Communications Commission's (FCC) specifications for E-911 Phase II capabilities. It also offers robust data availability under challenging conditions, such as in concrete-and-steel high-rises, convention centers, shopping malls or urban canyons.

"The RFR3300 front-end receiver represents QUALCOMM's on-going commitment to provide its customers with the most advanced CDMA wireless communications tools and devices," said Johan Lodenius, senior vice president of marketing and product management for QUALCOMM CDMA Technologies. "With our innovative gpsOne technology, the RFR3300 device not only offers the highest levels of wireless receiver performance, but also provides the most cost-effective solution available for position location."

QUALCOMM's RFR3300 device integrates dual-band low noise amplifiers (LNAs) and mixers for downconverting from RF to CDMA and FM IF, and contains a dedicated LNA and mixer designed for downconverting global positioning system (GPS) signals from RF to IF. The RFR3300 receiver operates in the 832 MHz-894 MHz cellular band, 1840 MHz-1990 MHz PCS band and 1575 MHz GPS band. The RFR3300 device meets cascaded Noise Figure (NF) and Third-Order Input Intercept Point (IIP3) requirements of IS-98 and JSTD-018 for sensitivity, and two-tone intermodulation. The RFR3300 solution was also designed to meet the sensitivity requirements of gpsOne.

The cellular LNA in the RFR3300 device offers gain control capability for improving dynamic range and performance in the presence of high levels of interference. Reducing the gain in the LNA also improves power consumption. Band selection and gain modes are controlled directly from the MSM3300 chip. The RFR3300 device is designed for use with voltage ranges from 2.7 V to 3.15 V, and is available in a 5 millimeter by 5 millimeter 32-pin BCC++ plastic package.

Sample shipment of the RFR3300 device is expected in Q4 2000, with production shipping expected in Q1 2001.


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