High-performance amplifiers cut consumption
Avago Technologies has developed Low-Noise Amplifiers
(LNAs) that can deliver high performance for base
stations using a much lower current consumption.
The new family of miniaturised MMIC LNAs also improve
receiver sensitivity of Picocell or Femtocell base stations
for cellular and WiMAX infrastructure applications.
Avago’s MGA-12516 is a matched-pair balanced
LNA designed to operate between 800MHz and 3GHz.
Avago’s MGA-13516 and MGA-14516 are two-stage LNAs
with built-in active bias circuitry and the ability to adjust
the supply current and gain through external matching
without affecting the noise figure.
Power supply designs target ENERGY STAR®
To assist designers striving to meet ENERGY STAR®
requirements, Fairchild Semiconductor and ON
Semiconductor have produced supporting-module
and power-supply reference designs respectively.
Fairchild Semiconductor’s Power-SPM™ module offers
an efficient, reliable and space-saving solution for
secondary-side rectification in SMPS designs. The Power-
SPM FPP06R001 is a highly-integrated synchronous
rectification module that increases power efficiency and
system ruggedness in power-supply designs.
Supporting the emerging market for digital television
adapters, ON Semiconductor’s 8 Watt GreenPoint™
reference design exceeds ENERGY STAR® requirements.
This 8W AC/DC power-supply reference design for
digital-to-analogue adapters achieves active-mode
efficiency of 75% across a range of output voltages and
current combinations, and consumes only 720mW in
sleep-mode.
Green design contest opens in Europe
The Freescale Technology Forum (FTF) Design Challenge
Europe is asking embedded systems engineers and
students to test the boundaries of green embedded
systems design.
Once registered, participants receive a kit with
hardware and software development tools. Competitors
are challenged to create innovative, green electronic
designs using a group of Freescale solutions.
Top regional winners are invited to move on to the
Grand FTF Design Challenge, competing against other
teams to win $61,000 in cash prizes. For information
about entry requirements, official rules, the design
selection process and winner notifications please visit
www.freescale.com/designchallenge.
Noise-suppression technology operates at
one-tenth the power of DSP solutions
products that reduces background noise and delivers
more natural-sounding voice quality while consuming
one-tenth the power of comparable DSP or
microprocessor software-based systems.
The PowerWise LMV1088 dual-input microphone
array amplifier utilises continuous-time analogue
processing to provide instantaneous response to voice
and background noise signals. In comparison, DSPs and
processors require extra computation time to adjust to
voice background noise levels. The LMV1088 eliminates
the output frequency distortions and other audio
artefacts common with DSP or microprocessor softwarebased
systems using sub-band frequency processing
algorithms.
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