WJ Communications Introduces High IP3 Mixer for Wireless Applications

No Mixer in the Market With Equivalent Performance, IIP3=38 dBm
@2.6GHz with 40mA Icc
SAN JOSE, Calif.--(Business Wire)--
WJ Communications, Inc. (NASDAQ:WJCI), a leading designer and
supplier of radio frequency (RF) products and solutions for the
wireless infrastructure and radio frequency identification (RFID)
reader markets, today introduced the ML485, a GaAs MMIC mixer with
integrated LO driver amplifier. This high-dynamic range mixer offers
+38 dBm Input IP3 from 0 dBm LO drive level while drawing a very low
40mA current, and can be operated across a wide 1.6 - 3.2 GHz
frequency range.

The ML485 can be used for upconversion or downconversion in a
low-side or high-side LO configuration. The integrated LO buffer
amplifier is integrated on the chip to allow for operation directly
from a synthesizer, requiring only 0 dBm of drive level. The
dual-stage LO driver provides a stable input power level into the
mixer to allow for consistent performance over a wide range of LO
power levels. The converter requires no external baluns and only
requires one external bypass capacitor allowing the integrated mixer
to easily be used by RF designers.

"The current wireless applications demand cost-effective mixer
solutions delivering highly reliable and superior performance," said
Haresh Patel, SVP of Sales and Marketing at WJ Communications. "The
introduction of ML485 reinforces our commitment to offer a device with
excellent features while provides the low-cost advantage which
significantly benefit our customers."

Product Overview

The ML485 is a high linearity converter that integrates a GaAs
MMIC mixer with an LO driver amplifier in an ultra-small
lead-free/green/RoHS-compliant MSOP-8 package. A LO buffer amplifier
is integrated on the chip to allow for operation directly from a
standard frequency synthesizer requiring only 0 dBm of drive level and
drawing only 40mA current. The dual-stage LO driver provides a stable
input power level into the mixer to allow for consistent performance
over a wide range of LO power levels. The converter requires no
external baluns and only requires one external bypass capacitor. The
converter has been designed to offer the market leading linearity
performance with Input IP3 levels of up to +38 dBm. The ML485 can be
operated across a wide 1.6 - 3.2 GHz frequency range making it ideal
for Cellular / PCS / 3G Infrastructure, fixed wireless, and especially
for newer emerging technologies such as TD-SCDMA / WiBro / WiMAX.

Value Proposition

Responding to market needs for better performance and low-cost
mixers, the ML485 reflects these inputs by concurrently lowering the
overall total cost of ownership and maintaining industry-leading high
input IP3 performance for array of wireless applications. The
following are the key features of the ML485:

-0-
*T
-- Ultra High Dynamic Range:

-- Achieves +37 dBm Input IP3 at 2.14 GHz, 150 MHz IF

-- Achieves +38 dBm Input IP3 at 2.6 GHz, 200 MHz IF

-- Low Conversion Loss

-- 8.7 dB conversion loss at 2.14 GHz

-- Integration:

-- The integrated LO buffer amplifier eliminates the need for an
external driver

-- Low Current:

-- Only 40mA current is required for operation

-- Small Package:

-- Lead-free / green / RoHS-compliant MSOP-8 package measuring
3x3mm

-- Drop-in Replacement:

-- Pin-to-pin compatible with other mixers in the MSOP-8 package
*T

Positive Market Feedback

The ML485 is presently sampling with a variety of key strategic
customers; the customers' feedback has been very positive with special
emphasis on device' high performance and cost-saving benefits.

Target Applications

The ML485 is targeted in various usages of current and next
generation wireless technologies such as PCS, 3G basestations, ISM,
fixed wireless, HPA feedback paths, TD-SCDMA, W-CDMA, WiBro, and
WiMAX. The small package size makes the converter an excellent choice
for high performance repeater applications.

Availability & Pricing

Please contact your local sales at 408-577-6200 or e-mail
sales@wj.com for more information on pricing and availability.

About WJ Communications

WJ Communications, Inc. is a leading provider of radio frequency
(RF) solutions serving multiple markets targeting wireless
communications, RF identification (RFID), WiMAX, and RF power
solutions. WJ addresses the RF challenges in these multiple markets
with its highly reliable amplifiers, mixers, RF integrated circuits
(RFICs), RFID reader modules, chipsets, and multi-chip (MCM) modules.
For more information visit www.wj.com or call 408-577-6200.

All trademarks used, referenced, or implicitly contained herein
are used in good faith and highlighted to give proper public
recognition to their respective owners.

WJ Communications
Tuan Nguyen, 408-577-6318
Product Marketing
tuan.nguyen@wj.com
Claudia Lin, 408-577-6341
Corporate Communications
claudia.lin@wj.com

Copyright Business Wire 2008