Clark. Didn't you have a discussion a while back that centered on two tone tests, which I think were part of the ETSI VW-40 proposal, and how they are inappropriate to testing a CDMA system? [The point being that anyone who put together such a proposal had a very shallow understanding of CDMA and was unlikely to have been working on it "for a decade"]
Well, check out the highlighted bit in this Motorola release. Are they are referring to the same topic?
Newly Designed Motorola RF LDMOS Family Boosts CDMA Output
Power for PCS-band Applications
PHOENIX--(BUSINESS WIRE)--Feb. 18, 1999--
Brings unprecedented performance to ultra linear power
amplifiers designed for IS-95 applications at 1.9 GHz
Motorola has introduced the first family of RF LDMOS devices optimized for 1.9 GHz PCS-band CDMA
applications that offers a 50% improvement in single-ended power (up to 90 watts), a 25% improvement in
efficiency, and superior gain performance.
More significantly for CDMA designers, this new family, named the MRF19000 series, provides 30% more
average power at the CDMA IS-95 mask than earlier generations of Motorola's RF LDMOS.
Based upon Motorola's fourth generation (HV4) RF LDMOS device technology, the MRF19000 series also
provides maximum protection from hot carrier injection effects (<10% Vgs over 20 years), while at the
same time not sacrificing RF performance. In addition, these devices incorporate input and output
matching, making them easier to use and significantly reducing design cycles, as well as board space.
Finally, the complete lineup now includes an industry first integrated ESD (electro-static discharge)
protection to simplify handling and reduce overall manufacturing costs associated with assembling
ultra-sensitive devices. The 90-watt MRF19090 device, for example, is qualified as a Class 2, HBM
(human body model) device with a 2,350-volt rating, and it qualifies as a Class-M3 300-volt device for the
machine model. No other RF LDMOS device on the market has ever achieved such a high level of ESD
protection.
"Not only do these devices provide more pure RF performance than any other device on the market, they
also exemplify Motorola's commitment to enhance every area of device capability," said Daniel Artusi, vice
president and general manager for Motorola's Wireless Infrastructure Systems Division (WISD). "By
integrating the first ever ESD protection, they are easier to handle and assemble. And, of course, they do
all of this without sacrificing the ruggedness, reliability, and consistency the industry has come to expect
from Motorola. Our goal is to continue to push every aspect of performance, and the MRF19000 family
does just that."
The first product to be unveiled in the MRF19000 line-up, the MRF19090, is the first ever single-ended,
90-watt device operating at 2 GHz. This device (available in package styles with and without the flange) is
designed for Class AB narrowband CDMA (1.25 MHz wide channel) applications. Optimized to meet the
IS-95 spec, the MRF19090 will be joined by the 60-watt MRF19060 and 30-watt MRF19030. The family
also includes a push-pull, 120-watt MRF19120 for PCS microcell applications or advanced prototyping of
CDMA2000 applications.
"In order to maximize the success of the IS-95 standard, the cost per voice channel must come down,"
said Randy Clark, WISD RF Power Infrastructure Product Manager. "That means getting more usable
CDMA power out of the silicon people are buying now. Motorola's fourth generation RF LDMOS delivers
that type of performance. Further, to help make the devices more usable, Motorola will begin to specify
the Adjacent Channel Power Rejection Performance of the device on data sheets. We've spent a lot of
time and energy proving that two-tone device performance does not necessarily equate to actual CDMA
performance. To that end, we want to provide characterization data and figures of merit that are meaningful
for the designers. The new family of PCS CDMA parts will do just that."
The benefits are clear, ESD protection, more CDMA power, and internal matching, all coupled with
Motorola's legendary consistency, quality, and ruggedness. Motorola's MRF19000 family of RF devices
brings unprecedented performance to ultra-linear power amplifiers designed for IS-95 applications at 1.9
GHz.
MRF19090 low volume pricing is $180.00. Suggested resale price is in U.S. dollars for U.S. delivery only.
Samples and small quantities are available from stock; production quantities have a six-week lead-time
depending on volume. For further information, contact your local Motorola Semiconductor Sales Office or
Authorized Motorola Distributor.
As the world's No. 1 producer of embedded processors, Motorola's Semiconductor Products Sector offers
multiple DigitalDNA(tm) solutions which enable its customers in the consumer, networking and
computing, transportation, and wireless communications markets, to create new business opportunities.
Motorola's worldwide semiconductor sales were $7.3 billion (USD) in l998.
Motorola is a global leader in advanced electronic systems and services. It liberates the power of
technology by creating software-enhanced products that provide integrated customer solutions and
Internet access via wireless and satellite communications, as well as computing, networking, and
automotive electronics. Motorola also provides essential digital building blocks in the form of embedded
semiconductors, controls and systems. Global sales in 1998 were $29.4 billion (USD).
DigitalDNA is a Motorola trademark. |
