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Tyco Electronics - Press Release 8-2-2007

 Tyco Electronics' Digital Transmitter Technology (DTx) Extends Performance to Multiple Modes and Bands

DTx Technology Demonstrates Excellent Efficiency, Bandwidth and Integration in Multi-mode and Multi-band RF Transmitters for GPRS/EDGE, W-CDMA, CDMA 2000, HSPA as well as LTE, EVDO and WiMax Air Interfaces

LOWELL, Mass. – August 2, 2007 – Tyco Electronics today announced successful demonstration of its innovative multi-mode DTx technology, which provides a single transmitter solution for GPRS, EDGE, CDMA2000 and UMTS. The DTx technology is an advanced radio architecture that enables true multi-band, multi-mode operation from 2.5G to 4G with a single closed loop digital polar design. Having demonstrated exceptional power efficiency in all the 2.5G and 3G standards, the DTx technology provides an ability to extend the benefits of a polar architecture to WiMax, LTE, EVDO and High-Speed Packet Access (HSPA) networks. Moreover, the DTx technology has been the basis of numerous patent filings with 18 patents and multiple patent applications pending.

Based on novel circuit and signal processing techniques, DTx technology includes a full transmitter subsystem with robust calibration and corrections algorithms. The technology has demonstrated a number of significant technical breakthroughs at the circuit and system level, including several key technical achievements:
  • Extremely Wide RF bandwidth: Proprietary RF power amplifiers have demonstrated performance from 824MHz to 1910MHz in W-CDMA, CDMA2000, HSPA, WiMAX and LTE modes. The DTx transmitter subsystem enables multiple UMTS bands, including band VII to be combined with quad band GSM/EDGE with no significant cost or size penalties.

  • Extremely Wide modulation bandwidth saves money and provides uniform radio architecture: To date polar solutions have been limited to GPRS and EDGE. More traditional IQ designs are required for UMTS, WiMAX, EVDO and LTE. Conventional multimode radio designs require two completely redundant transmitters which doubles size and cost. DTx technology can enable modulation of signals with over 30MHz of bandwidth. This allows energy efficient polar transmitters to scale beyond EDGE to W-CDMA, HSPA, EVDO, WiMAX and LTE.

  • Energy efficiency means more features and talk time: The DTx transmitter subsystem provides power efficiency at peak transmit powers as well as superior current consumption at lower transmit powers for all modes from EDGE to LTE. The DTx transmitter subsystem has achieved impressive 40% power added efficiencies in EDGE mode. These benefits can now be extended to even more demanding standards such as HSPA, EVDO, WiMAX and LTE. The energy savings allow additional features or more talk time as well as reduced thermal stress and more compact and flexible board utilization.

  • A novel Closed Loop Polar solution provides robust performance for both data and voice devices. The DTx transmitter employs unique algorithms to calibrate device non-linearity in real-time. As a result, performance over temperature, battery voltage, frequency and transmit power is much more tightly controlled. This results in fewer dropped calls, longer talk times and standby times as the adaptive DTx technology adjusts and optimizes performance in real world conditions.

“The DTx technology platform that is now in demonstration brings significant innovation to support true multi-mode capability, creating a preferred path to a common radio architecture for the multiplicity of voice and data modes and bands,” said Finbarr McGrath, director, DTx Technology, Tyco Electronics. “The DTx technology extends the benefits of closed loop Polar Modulation from GPRS/EDGE through W-CDMA, HSPA, EVDO and beyond to LTE and WiMax. This will allow for cost effective production of multimode radios as well as providing additional space and reduced power consumption for the features that will be required in smarter mobile devices for today and the future.”


Tyco Electronics Ltd. is a leading global provider of engineered electronic components, network solutions and wireless systems, with 2006 sales of US$12.8 billion to customers in more than 150 countries. We design, manufacture and market products for customers in industries from automotive, appliances and aerospace and defense to telecommunications, computers and consumer electronics. With over 8,000 engineers and worldwide manufacturing, sales and customer service capabilities, Tyco Electronics’ commitment is our customers’ advantage. More information on Tyco Electronics can be found at www.tycoelectronics.com.

  • The TE Logo and Tyco Electronics are trademarks.

  • Other products, logos, and company names mentioned herein may be trademarks of their respective owners.

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