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What does W-CDMA stand for?

W-CDMA stands for wideband-code division multiple access. It is a 3G technology that increases data transmission rates in GSM systems by using the CDMA air interface instead of TDMA.

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2007-11-01	ZTE claims 'first' W-CDMA commercial femtocell ZTE claims its ZXWR H8901 product is the world's first W-CDMA commercial Home NodeB, also known as femtocell.
2010-02-09	White LEDs provide 300K/W thermal resistance Vishay Intertechnology Inc. has developed power surface-mount white LEDs optimized to provide very low thermal resistance down to 300K/W and power dissipation up to 200mW.
2012-02-10	White LEDs offer up to 148lm/W at 85°C Cree's XLamp XT-E white LED comes in a 3.45 x 3.45mm footprint and claims push LED adoption and lower cost.
2010-01-06	White LED deliver over 120lm/W SemiLEDs Corp. is offering its I-core LED that achieves over 120lm/W in an optimized white light package, as tested by two China LED packaging companies.
2003-04-16	WEDC Flash memory offers simultaneous R/W operation The W72M64XV-XBX 2Mx64, 3.3V Flash memory device from White Electronic Designs Corp. allows simultaneous R/W operation.
2004-08-05	Waysun crystal oscillators have 1?W drive level Waysun released Its TMX-206 surface-mount quartz crystal oscillators that operate up to frequencies of 32.768kHz and have a load capacitance of 12.5pF.
2005-06-03	W.L.Gore offers digital cable assemblies for high-speed backpanels W.L. Gore and FCI announced that they have combined their technologies to offer the next generation of high data rate digital interconnect solutions
2002-03-11	W. L. Gore joins SNAP12 MSA W. L. Gore & Associates Inc. has joined charter members EMCORE Corp. and Picolight Inc. in the SNAP12 MSA for the manufacture and supply of connectorized 12-channel parallel optical modules operating at up to 2.7Gbps per channel.
2002-06-17	W-Link adopts Zeevo TC2000 Bluetooth solution W-Link has selected Zeevo Inc.'s TC2000 single-chip device to be integrated in its range of products.
2007-02-14	W-CDMA protocol analyzer tests partial designs Unlike using radio test sets on conformance test systems, the Aeroflex W-CDMA ACE 3G protocol analysis test system supports the early development of protocol test scenarios through its ability to test partial and incomplete designs.
2007-02-21	W-CDMA PA promises 25% more talk time Leveraging Anadigics' HELP3 technology, the AWT6221 W-CDMA power amplifier reduces average current consumption by 75 percent, which translates to up to 25 percent increase in talk-time.
2005-02-28	W-CDMA PA modules reduce power consumption by 50 percent Anadigics unveiled a new family of 4-by-4mm HELP W-CDMA PA modules that use the company's proprietary mode switching techniques.
2007-05-14	W-CDMA handsets to drive DSP growth till 2011 Forward Concepts predict that a pickup in the W-CDMA/UMTS handset shipments will drive a 12 percent CAGR in DSP chips till 2011.
2005-05-12	W-CDMA gets a boost from dual-band power amplifier module Fairchild's new W-CDMA power amplifiers is one of the first dual-band W-CDMA PAs that offers a 3-by-3mm footprint
2005-03-25	W-CDMA chipset to support HSDPA Qualcomm is developing the Mobile Station Modem MSM6260 chipset and system software solution for W-CDMA/High Speed Downlink Packet Access and GSM/GPRS/EDGE (EGPRS).
2009-12-29	W-CDMA base stations pack RRE NTT Docomo Inc. is deploying new W-CDMA base stations equipped with newly-developed remote radio equipment (RRE) units to provide both existing W-CDMA and forthcoming LTE service.
2007-04-23	W-CDMA 2.3GHz VCO using BFR360F and BBY58-02V The BFR360F is a 14GHz transition-frequency device which takes advantage of the latest manufacturing techniques requiring fewer processing steps than other devices in its class.
2002-10-04	W&Jsoft: Bringing IC design collaboration to the Internet The year 2000 saw the emergence of the mainland China market and increased competition in the global supply chain. As a result, Taiwan enterprises sought to reinforce their R&D skills through design collaboration.
2013-07-23	Vero series of LED arrays feature 120lm/w efficacy The Vero arrays from Bridgelux deliver average minimums of 110lm/w and provide designers with design and manufacturability flexibility.
2008-06-20	Universal Display achieves 102lm/W in white OLEDs Universal Display Corp. has demonstrated a 102lm/W at 1000cd/m? phosphorescent OLED technology that has the potential to create significant economic and energy benefits for future solid-state lighting systems.
2008-07-25	Ultrabright WLEDs shine at 136 lumens/W efficacy Osram development engineers have achieved new records for the brightness and efficiency of white LEDs in the laboratory.
2005-06-10	UCC28517 100-W PFC power converter with 12V, 8W bias supply, part 2 This app note reviews the design of the second 12V, 8W power stage to be used as an auxiliary bias supply.
2005-06-10	UCC28517 100-W PFC power converter with 12V, 8W bias supply, Part 1 This app note reviews the design of a 100W ac/dc power stage with power factor correction.
2004-11-22	UbiNetics, Renesas to develop W-CDMA, HSPDA subsystem UbiNetics and Renesas Technology Corp. have agreed to develop an RF subsystem for emerging wideband CDMA (W-CDMA) and high-speed data packet access (HSDPA) designs for the Japanese, European, and US markets.
2009-02-11	TVS diodes tout 67 W/mm? surge capability NXP Semiconductors has launched a new range of transient voltage suppressor (TVS) diodes housed in its new FlatPower package, SOD123W.
2007-10-11	Tiny W-CDMA duplexer extends handset talk time Optimized for the UMTS Band 1 frequency band, Avago's FBAR-based W-CDMA duplexer improves talk time and handset sensitivity in a miniature 3mm x 2.5mm x 1.2mm package.
2007-11-29	Tiny duplexer handles W-CDMA Bands V/VI EPCOS AG is shipping in production quantities a UMTS duplexer for the W-CDMA bands V/VI, which features a footprint of 2.5mm x 2mm and a flat insertion height of 0.5mm.
2010-07-01	THz detector achieves 1100V/W sensitivity at room temp Panasonic has developed a new terahertz (THz) detector using a GaN transistor, touted to exhibit the highest sensitivity at room temperature.
2011-11-25	Thermogenerator package yields 100?W to 10mW The TGP-651 and TGP-751 harvest energy from waste heat to power actuators and wireless sensors.
2003-03-03	The 800lb. gorilla in public W-LANs Cometa Networks of AT&T, IBM, and Intel poses to be the largest and most influential public-access WLAN company - this can help in establishing the standards that will lead to unification of the public-access WAN industry.