Qualcomm Incorporated (Nasdaq: QCOM), pioneer and world leader of Code Division Multiple Access (CDMA) digital wireless technology, today announced the RFT5600™ baseband-to-radio frequency (RF) transmit processor. The RFT5600 device performs all transmit (Tx) signal processing functions required in wireless CDMA handsets between the analog baseband output from the Mobile Station Modem (MSM™) chip and power amplifier (PA) for IS-95A/B and 3G CDMA2000 1X applications. The RFT5600 device, together with the PA, enables a complete two-chip Tx radio implementation using minimum circuitry for IS-95A/B and CDMA2000 1X single-mode, dual-mode, dual-band or tri-mode handsets.
Leveraging previous RFT3100™ circuit designs and incorporating a triple phase locked loop (PLL) comprising an ultrahigh frequency (UHF) PLL and receive (Rx) and Tx intermediate frequency (IF) PLLs, the RFT5600 device offers an advanced, tightly integrated IS-95A/B and CDMA2000 1X Tx solution that simplifies RF printed circuit board (PCB) design, shortens development cycle time, and reduces handset material costs.
"As part of our complete IS-95A/B and 3G CDMA2000 1X solution, the RFT5600 device will save handset manufacturers time, money and board space, and represents a highly integrated transmit processor solution," said Don Schrock, president of Qualcomm CDMA Technologies. "Consumers will benefit from a more cost-effective Tx implementation that offers the benefits of advanced IS-95A/B and 3G CDMA2000 1X technologies."
The RFT5600 device includes a quadrature baseband-to-IF upconverter, a programmable PLL for generating the Tx IF frequency, Tx IF voltage controlled oscillator (VCO), single sideband upconversion from IF to RF, one cellular and two Personal Communications Service (PCS) driver amplifiers, and Tx power control through an 85 dB variable gain amplifier (VGA). Using an analog baseband interface, the RFT5600 device's baseband quadrature signals are upconverted to the cellular or PCS frequency bands and amplified to provide signal drive capability to the PA. The single sideband upconversion eliminates the need for an IF surface acoustic wave (SAW) filter normally required between the upconverter and driver amplifier, providing further board area and cost savings. The RFT5600 device incorporates programmable PLLs for generating both the UHF and Rx IF local oscillator (LO) frequencies used in conjunction with Qualcomm CDMA Technologies' (QCT) receive chain devices; both PLLs can be used independently and include an input buffer to accept external VCO signals.
Designed to meet the requirements for global CDMA markets, the RFT5600 device will operate over the following Tx frequency ranges: 824 megahertz (MHz) - 925 MHz (cellular band) and 1750 MHz - 1980 MHz (PCS band). The range of supply voltage is from 2.7 volts (V) to 3.3 V, which provides operating compatibility for platforms using a single-cell lithium-ion (Li-Ion) battery design. RFT5600 operating modes are controlled by the MSM chip and include band selection and frequency programming, gain control, selective power-down, and punctured CDMA transmission (gated Tx power) for optimal power savings and talk-time improvement. The RFT5600 device is fabricated on an advanced bipolar complementary metal oxide semiconductor (BiCMOS) process that accommodates both precision high-frequency analog circuits and low-power CMOS functions, and is provided in a 48-pin Bump Chip Carrier (BCC++) plastic package that includes an exposed center ground slug for improved RF grounding, mechanical strength and thermal continuity.
- Tx functionality includes integrated I/Q modulator, IF VCO/PLL, single sideband (SSB) upconverter, VGA and driver amplifiers
- Includes integrated UHF PLL and Rx and Tx IF PLLs
- Tri-mode operation includes cdmaOne™, 3G CDMA2000 1X and Advanced Mobile Phone Service (AMPS)
- Tx analog baseband interface compatible with MSM3100™, MSM3300™, MSM5105™, MSM5010™, MSM5100™ and MSM5500™ chipsets
- UHF and Rx IF PLLs include an input buffer to accept external VCO signals
- UHF PLL includes charge pump boost mode for fast acquisition
- All three PLLs independently power-down via serial bus interface (SBI) control
QCT is currently providing customers with sample shipments of the RFT5600 device. Production quantities are expected to be available beginning in December 2001.
QCT (www.cdmatech.com), a division of Qualcomm Incorporated, is a developer and supplier of CDMA chipsets, hardware and software solutions, and tools, with 163 million cumulative shipments of MSM chips worldwide. QCT offers wireless position location technology by SnapTrack™, a wholly owned subsidiary of Qualcomm. QCT supplies chipsets to the world's leading CDMA handset and infrastructure manufacturers including: Acer Peripherals, Inc.; ALPS ELECTRIC CO., LTD.; CASIO COMPUTER CO., LTD.; FUJITSU LIMITED; Hitachi, Ltd.; Hyundai Electronics Industries Co., Ltd.; KYOCERA CORPORATION; LG Information and Communications, Ltd.; Samsung Electronics Ltd.; SANYO Electric Co., Ltd.; and Toshiba Corporation, among others.
Qualcomm Incorporated (www.qualcomm.com) is a leader in developing and delivering innovative digital wireless communications products and services based on the Company's CDMA digital technology. The Company's business areas include CDMA chipsets and system software; technology licensing; the Binary Runtime Environment for Wireless™ (BREW™) applications platform; Eudora® e-mail software; digital cinema systems; and satellite-based systems including portions of the Globalstar™ system and wireless fleet management systems, OmniTRACS® and OmniExpress®. Qualcomm owns patents that are essential to all of the CDMA wireless telecommunications standards that have been adopted or proposed for adoption by standards-setting bodies worldwide. Qualcomm has licensed its essential CDMA patent portfolio to more than 100 telecommunications equipment manufacturers worldwide. Headquartered in San Diego, Calif., Qualcomm is included in theS&P500 Index and is a 2001 FORTUNE 500® company traded on The Nasdaq Stock Market® under the ticker symbol QCOM.
Except for the historical information contained herein, this news release contains forward-looking statements that are subject to risks and uncertainties, including the Company's ability to successfully design and have manufactured significant quantities of CDMA components on a timely and profitable basis, the extent and speed to which CDMA is deployed, change in economic conditions of the various markets the Company serves, as well as the other risks detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended September 30, 2001 and most recent Form 10-Q.