This is only a preview of the November 2003 issue of Silicon Chip. You can view 27 of the 104 pages in the full issue, including the advertisments. For full access, purchase the issue for $10.00 or subscribe for access to the latest issues. Items relevant to "A 12AX7 Valve Audio Preamplifier":
Items relevant to "Our Best LED Torch EVER!":
Items relevant to "Smart Radio Modem For Microcontrollers":
Items relevant to "The PICAXE, Pt.8: The 18X Series":
Items relevant to "A Programmable PIC-Powered Timer":
Articles in this series:
Purchase a printed copy of this issue for $10.00. |
PRODUCT SHOWCASE
Altronics MP3 Player, Amp Kit
If you’re looking for a way to “go
mobile” with your MP3 music collection, then check out the new Altronics
K2770 MP3 Player kit.
It works with a standard IDE hard
disk drive, meaning it can store gigabytes of music – up to 10,000 tracks, in
fact! The kit comes with a pre-punched
and silk-screened metallic silver case,
and includes a graphical LCD display
along with an array of push-button
switches for player control. You can
even drive the beast with an infrared
remote control!
The DIN-sized case can house one
3.5-inch hard drive (not supplied), a
pre-assembled MP3 jukebox PC board,
LCD display module, front panel PC
board and power supply PC board.
The MP3 jukebox PC board forms the
core of the player. Its main functional
components consist of a PIC micro,
MP3 decoder and stereo D-A converter.
Included on the board are connectors
for an LCD module, IDE hard drive,
power supply, switch inputs and stereo signal output. Almost all on-board
components are surface-mounted,
which probably explains why Altronics is supplying this part of the kit
pre-assembled and tested.
The power supply and front-panel
boards are supplied as kits of parts.
These boards are relatively simple
and assembly should not present too
much of a challenge to those familiar
with the pointy end of a soldering iron.
Internal wiring is surprisingly simple too, with the LCD module mounting “piggy-back” on the MP3 board.
Hook-up to the hard disk drive is via
a conventional 40-way ribbon cable.
The unit should work with most
ATA-compliant IDE hard disk drives.
For use in a car, a 2.5” laptop drive
is mandatory as these are much more
shock tolerant. However, you’ll need
to purchase a 3.5” to 2.5” adapter kit.
One negative is that the kit doesn’t
provide an easy way of transferring
your MP3s onto the hard disk. You
must physically remove the drive and
plug it into an IDE port in your PC in
order to get the files onto the drive. We
would not recommend this to anyone
www.siliconchip.com.au
unfamiliar with
the internals of
their PC.
Audio output
from the player
is via twin RCA
sockets.The unit
can be powered
from a 12V DC
regulated or 13.8V
DC unregulated
source.
Amplifier
add-on
Altronics also offer a companion
15W stereo amplifier kit. With this
add-on, all you need are two bookshelf-style speakers for a complete,
stand-alone jukebox.
The amplifier is based around Philips
TDA1519 amplifier modules, as used
in the SILICON CHIP 12V Stereo Amplifier (May 2001). A single PC board
carries all of the components, with the
amplifier modules bolting up to a small
heatsink at the rear of the case.
The kit is supplied with a look-alike
pre-punched metallic silver case.
Twin RCA sockets and an unregulated
DC output is provided at the rear for
connection to the player unit. Plug-in
screw terminal blocks are used for the
speaker connections.
Note that unlike the player, this
unit is mains-powered. Mains input is
via an IEC socket and a small (80VA)
toroidal transformer.
Summary
The K2770 MP3 Player kit boasts
a host of features that would make it
useful for a variety of applications.
With a DIN-sized case and 12V operation, it should work well as part of a
monster car audio system. Using the
automatic random play mode, it could
also be used as part of a “canned music
system”, such as in a PA setup or as part
of a “music on hold” service.
Specs at a glance:
··
·
122 x 32 graphical LCD
Shuffle & sequential mode playback
Stop/play/pause/next track/prev track/
··
··
skip/manual track selection
Automatic random playback mode
Supports multiple directories, ID3V1
tags and “artist-title” track naming
Detailed track statistics shown on LCD
Standard DIN sized case
Special pricing
The K2770 MP3 Player kit normally
retails for $329, but is currently available at the special price of $299. This
includes an A1013 infrared remote
control. The K5101 Stereo Amplifier
kit retails for $149.
Contact:
Altronic Distributors
PO Box 8350, Perth Business Centre,6849
Tel: 1300 797 007
Website: www.altronics.com.au
AUDIO MODULES
broadcast quality
Manufactured in Australia
Harbuch Electronics Pty Ltd
9/40 Leighton Pl. HORNSBY 2077
Ph (02) 9476-5854 Fx (02) 9476-3231
November 2003 59
New DPO family from Tektronix
Tektronix, Inc. has announced
the TDS700B family of new digital
phosphor oscilloscopes (DPO) which
feature the most advanced triggering,
signal fidelity and analysis capabilities
of any oscilloscopes on the market at
comparable price points.
The 4GHz TDS7404B, the 2.5GHz
TDS7254B and the 1.5GHz TDS7154B provide more than 400,000
waveforms per second waveform capture display. Designers can implement
data rates up to a Gigabit per second
(1Gb/s) and rise times on the order of
100 picoseconds (100ps).
The TDS7000B Series DPOs waveform capture rate is orders of magnitude better than existing digital storage
oscilloscopes (DSOs) in delivering
faster accumulation of signal
data for both critical insight
into signal behavior and indepth analysis.
Qualified triggers help
designers hone in quickly
on problems due to errors
that are considered faults only when
they occur after qualifying events or
time. Other triggers include a broad
selection of edge, timing, setup/
hold, fault, and event triggers. This
new trigger system features trigger
jitter as narrow as 1.0ps RMS and
the circuit can detect glitches as low
as 110ps. The new DPOs uniquely
address both hardware and software
clock recovery by a new, continuously
variable (1Mb/s to 3.125Gb/s) built-in
Computer/Notebook USB TV box with FM radio
Want to watch
TV (or receive FM
radio) on your computer or notebook?
Or play standard
(composite) video
(eg, from a VCR) on
your computer? Just
connect this nifty
little device from
Microgram to your
USB port.
There are connectors for a TV anten-
na, FM antenna, S-video in, composite
video in, audio in and audio out. A
full function remote control is also
included. It supports USB 1.1 on a
Pentium computer (166MMX min.)
using Windows 98SE/Me/2000/XP.
Recommended retail is $179.00.
Contact:
Microgram Computers
PO Box 8202, Tumbi Umbi NSW 2261
Tel: (02) 4389 8444
Website: www.mgram.com.au
Tech-Rentals has R&S FHS3 Handheld
Spectrum Analyzer
Tech-Rentals has recently acquired
a number of Rohde & Schwarz FSH3
handheld spectrum analyzers; for
short or long term rental or purchase.
With small dimensions and a
large display, it has an upper frequency limit of 3GHz and numerous
measurement functions. It has been
specifically designed for mobile applications, including areas of mobile
communication such as installation,
maintenance, servicing and fieldstrength measurements, as well as
use in labs and universities or by
electronics hobbyists.
The integrated Windows software
provides relevant documentation allowing the user to track changes in the
case of recurring measurements. The
measurement results can be stored in
the common graphics formats, as text
files or in Excel format, complete with
60 Silicon Chip
date and time and all settings.
Contact:
Tech-Rentals
Tel: 1800 632 652
Website: www.techrentals.com.au
hardware clock recovery circuit or by
integrated software clock recovery
tools, embracing the widest range of
serial standards.
Contact:
NewTek Sales Pty Ltd
Tel: (02) 9888 0100
Website: www.newteksales.com.au
Who said the floppy
is dead?
Many PCs these days do not have
floppy disk drives. That’s fine until
you need to read a floppy! Proving
that the 1.44Mb/1.4Mb formats are
not yet dead, Targus Australia has
launched a new “Slimline” external
floppy drive that powers up from the
USB port.
This neat little drive (14 x 10.4 x
1.8cm) is completely plug’n’play. The
first time it is connected, the notebook
recognises the device and treats it just
the same as a built-in.
The easy hot-plug installation
means it can be connected and disconnected while the notebook/PC is
in use and the simple, one cable USB
connection means no tangled wires or
clumsy ‘power bricks’.
With an expected retail price of
$109.95, the Slimline can read and
write to 3.5-in floppy disks including
720K/1.44Mb Windows (2000, Me &
XP) and 1.4Mb Macintosh formats. It
carries a full 12-month warranty.
Contact:
Targus Australia Pty Ltd
Tel: (02) 9807 1222
Website: www.targus.com.au
www.siliconchip.com.au
SILICON CHIP WebLINK
How many times have you wanted to access a company’s website but cannot remember their site name?
Here's an exciting new concept from SILICON CHIP: you can access any of these organisations instantly by going
to the SILICON CHIP website (www.siliconchip.com.au), clicking on WebLINK and then on the website graphic of
the company you’re looking for. It’s that simple. No longer do you have to wade through search engines or look
through pages of indexes – just point’n’click and the site you want will open!
Your company or business can be a part of SILICON CHIP’s WebLINK . For one low rate you receive a printed
entry each month on the SILICON CHIP WebLINK page with your home page graphic, company name, phone, fax
and site details plus up to 50 words of description– and this is repeated on the WebLINK page on the SILICON
CHIP website with the link of your choice active. Get those extra hits on your site from the right people in the
electronics industry – the people who make decisions to buy your products. Call SILICON CHIP today on (02)
9979 5644
Our website is updated daily, with over
5,500 products available through our secure
online ordering facility.
Features include semiconductor data sheets,
media releases, software downloads, and
much more
JAYCAR
JAYCAR ELECTRONICS
ELECTRONICS
Tel:
Tel: 1800
1800 022
022 888
888
WebLINK: www.jaycar.com.au
WebLINK:
www.jaycar.com.au
BitScope is an Open Design Digital Oscilloscope
and Logic Analyser. PC software drives
BitScope via USB, Ethernet or RS232 to
create a powerful Virtual Instrument. BitScope
is available built and tested or in kit form.
Extensive technical details are available on the
website. Great for hobbyists, university labs
and industry.
BitScope Designs
Contact: sales<at>bitscope.com
Contact: sales<at>bitscope.com
WebLINK: bitscope.com
WebLINK: bitscope.com
A 100% Australian owned company supplying
frequency control products to the highest
international standards: filters, DIL’s, voltage,
temperature compensated and oven controlled
oscillators, monolithic and discrete filters and
ceramic filters and resonators.
Hy-Q International Pty Ltd
Tel:(03) 9562-8222 Fax: (03) 9562 9009
WebLINK: www.hy-q.com.au
JED designs and manufactures a range of
single board computers (based on Wilke Tiger
and Atmel AVR), as well as LCD displays and
analog and digital I/O for PCs and controllers.
JED also makes a PC PROM programmer and
RS232/RS485 converters.
Jed Microprocessors Pty Ltd
Tel: (03) 9762 3588 Fax: (03) 9762 5499
WebLINK: jedmicro.com.au
Free simulator
program, tutorial
SPLat Controls is an Australian manufacturer of embedded programmable controllers who supply OEM
users world-wide with off the shelf and
custom control solutions. SPLat have
developed a tutorial and companion
simulator program for users wishing to
implement PID (Proportional, Integral,
Derivative) control functions.
www.siliconchip.com.au
International satellite TV reception in your
home is now affordable. Send for your free
info pack containing equipment catalog,
satellite lists, etc or call for appointment
to view. We can display all satellites from
76.5° to 180°.
· Hifi upgrades & modification products - jitter
reduction and output stage improvement.
· Danish high-end hifi kits - including pre- amps,
phono, power amps & accessories.
· Speaker drivers including Danish Flex Units plus
a range of accessories.
Soundlabs Group
Syd: (02) 9660-1228 Melb: (03) 9859-0388
WebLINK: soundlabsgroup.com.au
Av-COMM Pty Ltd
Tel:(02) 9939 4377 Fax: (02) 9939 4376
Tel:(02)
WebLINK: avcomm.com.au
WebLINK:
avcomm.com.au
We specialise in providing a range of Low
Power Radio solutions for OEM’s to incorporate in their wireless technology based
products. The innovative range includes
products from Radiometrix, the World’s
leading manufacturer.
TeleLink Communications
Tel:(07) 4934 0413 Fax: (07) 4934 0311
WebLINK: telelink.com.au
The program is called
PIDassist and simulates
a controller and a target
process. It can also be
used as a data acquisition tool for characterising the process and also
includes an automatic code generator
that produces the SPLat program code
required to implement the control
function.
The tutorial is located in the online
SPLat Knowledge Base and contains a
thorough but non-mathematical treatment of the theory of PID controlment
of an engineering course in Universities or TAFEs. To access the tutorial and
download a free copy of PIDassist, go
to the SPLat website at: splatco.com.
SC
au/splat/pidassist1.htm
Contact:
SPLat Controls
2/12 Peninsular Bvde, Seaford Vic 3198
Tel: (02) 9878 5544 Fax: (02) 9878 6366
Website: www.splatco.com.au
November 2003 61
|