Hittite Press Release - June 24, 2010
Hittite Launches New GaAs MMIC I/Q Downconverter Family!
Microwave I/Q Downconverter Series Covers Applications from 9 to 24 GHz
MA, 06/24/2010 – Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for
communication & military markets has introduced three new I/Q Downconverters which are ideal for military radar,
EW, satellite communications, point-to-point, and point-to-multipoint radio applications between 9 and 24 GHz.
HMC908LC5 are GaAs MMIC I/Q Downconverters and are comprised of an LNA followed by an image reject mixer which
is driven by an LO buffer amplifier. The HMC869LC5 covers
the 12 – 16 GHz frequency band while the
HMC908LC5 covers the 9 – 12 GHz frequency band. Small signal gain for the two Downconverters is as high as 14
dB with 32 dB of image rejection and LO to RF isolation better than 45 dB. The
HMC908LC5 I/Q Downconverters are very low noise, with noise figure as low as 2.2 dB.
HMC904LC5 GaAs MMIC I/Q Downconverter is a subharmonic downconverter which includes an LNA followed by an
image reject mixer which is driven by an active x2 multiplier. This low noise converter covers the 17 – 24 GHz
frequency band, providing a small signal conversion gain better than 12 dB with noise figure as low as 3 dB.
Image rejection is better than 30 dB and LO to RF isolation is at least 45 dB across the frequency band.
The image reject mixer topology used in the
HMC908LC5 I/Q Downconverting Mixers eliminates the need for a filter following the LNA, and removes thermal
noise at the image frequency. All three I/Q Downconverters provide both I/Q mixer outputs and an external 90º
hybrid is needed to select the desired sideband. These I/Q Downconverting Mixers are much smaller alternatives to
hybrid style image reject mixer downconverter assemblies, and are compatible with surface mount manufacturing
Samples and evaluation PC boards for all SMT packaged products are available from stock and can be ordered
via the company’s e-commerce site or via direct purchase order. Released data sheets are available on-line at
Hittite Microwave Corporation is an innovative designer and
manufacturer of analog, digital and mixed-signal ICs, modules, subsystems and instrumentation for digital, RF,
microwave and millimeterwave applications covering DC to 110 GHz. Our Digital/RFIC/MMIC products are developed
using state-of-the-art GaAs, GaN, InGaP/GaAs, InP, SOI, SiGe, CMOS and BiCMOS semiconductor processes utilizing
MESFET, HEMT, pHEMT, mHEMT, HBT and PIN devices. Our custom and standard products support a wide range of wireless
/ wired communications and radar applications for Automotive, Broadband, Cellular/4G, Fiber Optics, Microwave &
Millimeterwave Communications, Military, Test & Measurement, and Space markets.
Hittite Microwave Corporation
20 Alpha Road
Chelmsford, MA 01824