| Dear Sir/Madam
In
the high-end audio market is – despite the general digital revolution
– still room for analogue techniques. Audio freaks enjoying
their music listening as always to LPs rotating on gramophones
and processed by tube amplifiers. If you are one of these persons,
you´ll enjoy the “analogue” information in this newsletter!
Wolfgang
Patelay,
Technical Editor, EPN
Frequency
Transceiver (AMI Semiconductor)
The
AMIS-53000 is a highly flexible single-chip CMOS transceiver
designed for use in low- to moderate-data-rate (sub-1GHz), low-power,
narrow-band, FSK/GFSK/OOK, multiple-channel, wireless applications
within the medical market.
Click
here
Voltage
Reference (Texas Instruments)
Texas
Instruments has introduced a 3ppm/°C-maximum temperature-drift,
high-accuracy, low-cost CMOS voltage-reference family with high
output current. The REF50xx family features accuracy and system-performance
levels previously found only in costly buried Zener technologies.
Click
here
Low-Cost
Amplifier (Tyco)
The
M/A-COM MAAP-000082 is a 1.9GHz low-cost, three-stage power
amplifier suited to use in PHS (personal handy-phone system)
applications, which require high gain, high efficiency and small
size. The amplifier is equipped with advanced ESD (electrostatic
discharge) protection and can withstand electrostatic discharges
up to 1kV without degradation in performance.
Click
here
High-Fidelity
Audio Codec (Wolfson)
First
in Wolfson's the AudioPlus power-management product line, the
WM8350 integrates a high-fidelity audio Codec with a power-management
subsystem that ensures the best supply compatibility and audio
performance. The chip's efficiency - with 2MHz DC/DC converters
over the 90% efficiency line - also extends battery life and
reduces system costs for portable audio and navigation applications.
Click
here
Sponsor FAIRCHILD
Get greater efficiency
in less space with Fairchild’s lighting solutions
From ballast control ICs, high voltage gate drivers (HVICs),
power MOSFETs, PFC controllers to power transistors, Fairchild
has the lighting solution for your design.
Click
here
Leakage
Currents in the Right Perspective
Line
filters (EMC filters) are often regarded as a blackbox. However,
to effectively use filters, it is advantageous to have some
background knowledge. The focus of this article by Christoph
Buob from Schurter deals with leakage currents and what has
to be observed in connection with this.
Click
here
Silicon
safeguards automotive circuits
Transient
voltages are an inevitable feature of the automotive environment
and can easily damage delicate silicon, increasingly however,
automotive-strength silicon solutions assume roles that passive
components traditionally tackle. More about this topic you´ll
find in this article by David Marsh, Contributing Technical
Editor, EDN.
Click
here
Sponsor NATIONAL
INSTRUMENTS
You don't need
to be a SPICE expert to use NI Multisim. With an intuitive
environment powered by industry-standard SPICE technology,
you can start capturing and simulating immediately. Prevent
costly reworks and ensure quality with simulation and measurements
early in your design flow. Learn more at www.ni.com/multisim.
Click
here
Voltage
timer monitors line-connected ac loads
A
simple circuit monitors the elapsed time over which a line connected
ac load energizes in the Design Idea by Michael
Petersen from Maxim.
You can then access the elapsed-time count over a standard one-wire
protocol. When you energize the ac load, the optoisolator provides
pulses at the ac-line frequency to the input of the one-wire
counter, a DS2423 IC. Thus, the counter continuously increments
whenever you energize the load.
Click
here
Analog
divider uses few components
Although
microprocessors may offer calculations of greater precision,
there's still room for analogue-computation techniques in a
designer's circuit collection. As an example, the analogue-divider
circuit in the Design Idea by David Cripe offers reasonably
good accuracy for the price of a few inexpensive components.
Click
here
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Book of The Month |
|
|
 |
|
Introduction
to Analogue Electronics, by Bryan Hart
This
new text takes the reader from the very basics of analogue electronics
to an introduction of state-of-the-art techniques used in the
field. It is aimed at all engineering or science students who
wish to study the subject from its first principles, as well
as serving as a guide to more advanced topics for readers already
familiar with the subject.
Click
here
Copyright 2007, Reed
Business Information.
EPN and EDN Europe are members of the Reed
Electronics Group
Reed Business France - 2 rue Maurice Hartmann, 92133 Issy-les-Moulineaux,
France
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