Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
Hittite Press Release - September 29, 2011
Hittite's Widest Bandwidth SMT Digital Attenuators Operate to 33 GHz
-- New 5-Bit MMIC Attenuators Offer The Widest Bandwidth in the Industry!
MA, September 29, 2011 - Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions
for communication & military markets, has introduced two new SMT packaged MMIC 5-Bit Digital Attenuators which are
ideal for automotive, microwave radio, test equipment, military and space applications up to 33 GHz.
HMC939LP4E is a wideband SMT GaAs MMIC 5-Bit Digital Attenuator which is rated from 0.1 to 33 GHz. This
wideband attenuator product exhibits insertion loss as low as 4 dB, and can be programmed to provide up to 31 dB
attenuation in 1.0 dB steps. The
HMC941LP4E is a wideband SMT GaAs MMIC 5-Bit Digital Attenuator which is rated from 0.1 to 33 GHz. This
wideband attenuator product exhibits insertion loss as low as 4 dB, and can be programmed to provide up to 15.5 dB
attenuation in 0.5 dB steps.
HMC941LP4E feature excellent attenuation accuracy of ± 0.3 dB and fast switching speed of 90 ns, and both
accept positive control voltages of 0/+3V or 0/+5V. The
HMC941LP4E also exhibit high input IP3 performance of up to +45 dBm, allowing them to be used in various
locations within a microwave or millimeterwave transceiver. The
HMC939LP4E and the
HMC941LP4E are housed in RoHS compliant, 4 x 4 mm QFN packages.
HMC941LP4E are also offered in bare die form as the
HMC939 and the
HMC941LP4E complement Hittite's extensive line of control components, including the widest selection of MMIC
digital attenuators available from any OEM.
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 www.hittite.com.
About Hittite Corporation
Hittite Microwave Corporation is an innovative designer and manufacturer of high performance integrated circuits,
or ICs, modules, subsystems and instrumentation for technically demanding digital, RF, microwave and
millimeterwave applications covering DC to 110 GHz. The Company's standard and custom products apply analog,
digital and mixed-signal semiconductor technologies, which are used in a wide variety of wireless / wired
communication and sensor applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics &
Networking, Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets. The
Company is headquartered in Chelmsford, Massachusetts.
Hittite Microwave Corporation
20 Alpha Road
Chelmsford, MA 01824