NXP unveils world’s first fully integrated Doherty amplifiers

Jan 27, 2009

NXP Semiconductors, the independent semiconductor company founded by Philips, today launched the world's first fully integrated Doherty amplifiers for TD-SCDMA and WCDMA base stations, expanding its extensive portfolio of industry-leading RF power transistors. Maintaining NXP’s RF technology innovation, the advanced BLD6G21-50 and BLD6G22-50 fully integrated amplifiers offer ease-of-design while delivering unsurpassed efficiency of > 40% at an average power of 10W. This enables 35% lower power dissipation under multi-carrier signal operation compared to class AB amplifiers.

The new fully integrated Doherty amplifier is plug and play and can be applied in the same way as a standard class AB transistor, hence speeding time to market. The NXP BLD6G21-50 and BLD6G22-50 amplifiers bring savings in form factor and design effort, while eliminating the need for extra tuning during manufacturing, providing significant cost efficiencies during the development process of cellular base station power amplifiers.

The BLD6G21-50 incorporates an integrated Doherty concept leveraging NXP’s state of the art GEN6 LDMOS technology specifically designed for TD-SCDMA operation at frequencies from 2010 MHz to 2025 MHz, whereas its twin device operates at frequencies between 2110MHz to 2170MHz for W-CDMA transmission. Both main and peak devices and delay lines as well as the input splitter and output combiner are integrated into a standard transistor package with single input and output leads, thus minimizing required board space. The package has two additional pins, one of which is being used for external biasing purposes.

NXP developed the integrated Doherty technology in direct response to demand from base station providers and telecoms operators. "Integrated Doherty technology is considered a holy grail in amplifiers," said Mark Murphy, Director of marketing for RF power products, NXP Semiconductors. "Through this innovation we have achieved the smallest realized Doherty design and record efficiency, cutting total system power consumption significantly, thereby helping our customers reduce cost while boosting performance."

NXP’s BLD6G21-50 and BLD6G22-50 integrated Doherty amplifiers are sampling now. Higher power devices in this portfolio will become available throughout this year.

Provided by NXP

Explore further: Pinterest buys startup with image organizing skills

add to favorites email to friend print save as pdf

Related Stories

Fully functional loudspeaker is 3-D printed

Dec 13, 2013

(Phys.org) —Cornell researchers have 3-D printed a working loudspeaker, seamlessly integrating the plastic, conductive and magnetic parts, and ready for use almost as soon as it comes out of the printer.

A primary voltage standard for the whole world

Apr 09, 2013

(Phys.org) —PML researchers are on the verge of reaching a long-sought major goal: Providing the world with a programmable quantum voltage standard that has an uncertainty of less than 1 part per billion, ...

Engineers make tiny, low-cost, terahertz imager chip

Dec 10, 2012

(Phys.org)—A secret agent is racing against time. He knows a bomb is nearby. He rounds a corner, spots a pile of suspicious boxes in the alleyway, and pulls out his cell phone. As he scans it over the packages, ...

Recommended for you

Taking great ideas from the lab to the fab

1 hour ago

A "valley of death" is well-known to entrepreneurs—the lull between government funding for research and industry support for prototypes and products. To confront this problem, in 2013 the National Science ...

SR Labs research to expose BadUSB next week in Vegas

2 hours ago

A Berlin-based security research and consulting company will reveal how USB devices can do damage that can conduct two-way malice, from computer to USB or from USB to computer, and can survive traditional ...

US warns retailers on data-stealing malware

4 hours ago

US government cybersecurity watchdogs warned retailers Thursday about malware being circulated that allows hackers to get into computer networks and steal customer data.

User comments : 0