Hittite Microwave unveils new wideband direct modulator for 3G & 4G applications

By Telecom Lead Team: Hittite Microwave Corporation, a
supplier of complete MMIC based solutions for communication & military
markets, has launched a new high linearity Wideband Direct I/Q
Modulator HMC1097LP4E.


The company said that the HMC1097LP4E is ideal for
automotive, broadband, cellular/3G, WiMAX/LTE/4G, military and test &
measurement equipment applications between 100 MHz and 6 GHz.


The newly launched modulator has a flexible
architecture where its output IP3 can be further optimized over different
frequencies up to 6 GHz.


The modulator offers improved carrier feed through
and sideband suppression characteristics and also supports applications where
upconverter modulation format and/or output frequency must be dynamically
changed based on local operating conditions.


The company added that the modulator is ideal for
software defined radio and multi-band transmitter applications.


The HMC1097LP4E exhibits a
very fast enable/disable feature which can be used to reduce system power
dissipation in TDD-based cellular communication systems.


The HMC1097LP4E is optimized for a +5V supply,
and housed in a compact 4 x 4 mm SMT QFN package. It requires minimal external
components and provides a low cost alternative to more complicated double
upconversion architectures.


This high linearity direct modulator can be used to
create virtually any analog or digital modulation format including BPSK, QPSK,
8PSK, OFDM, and QAM for base station, access point, and customer premise


 The HMC1097LP4E is a low noise Direct
Quadrature Modulator RFIC which is rated from 100 MHz to 6 GHz. It performs
output IP3 of +30 dBm, noise floor of -160 dBm/Hz, output P1dB of +11 dBm, and
sideband suppression of -46 dBc.


Recently, Hittite
along with other microelectronics companies such as NXP and TriQuint announced
that they are focusing on high performance, high frequency applications in
defense, test and measurement, very small aperture terminal (VSAT) and
microwave radios.


These microelectronics companies have released
products operating above 10 GHz.


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