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Volume 116 · Issue 1889<br />
May 2010 · £4.60<br />
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www.electronicsworld.co.uk<br />
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THE ESSENTIAL ELECTRONICS ENGINEERING MAGAZINE<br />
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SPECIAL REPORT<br />
T&M:<br />
5-MINUTE GUIDE TO<br />
CHIP-LEVEL AUDIO TEST<br />
- TESTING RDS-EQUIPPED<br />
FM RADIO RECEIVERS<br />
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<br <a title="Electronics World May 2010 page 1" href="http://viewer.zmags.com/publication/9515e0b8?page=1">Volume 116 · Issue 1889 May 20</a> Volume 116 · Issue 1889 May 20<a title="Electronics World May 2010 page 2" href="http://viewer.zmags.com/publication/9515e0b8?page=2"></a> <a title="Electronics World May 2010 page 3" href="http://viewer.zmags.com/publication/9515e0b8?page=3">CONTENTSREGULARS05 TREND ALD: FR</a> CONTENTSREGULARS05 TREND ALD: FR<a title="Electronics World May 2010 page 4" href="http://viewer.zmags.com/publication/9515e0b8?page=4"></a> <a title="Electronics World May 2010 page 5" href="http://viewer.zmags.com/publication/9515e0b8?page=5">TRENDALD: FROM STRENGTH TO STRENGTH</a> TRENDALD: FROM STRENGTH TO STRENGTH<a title="Electronics World May 2010 page 6" href="http://viewer.zmags.com/publication/9515e0b8?page=6">TECHNOLOGYPaper with a MemoryGiven Boost byNa</a> TECHNOLOGYPaper with a MemoryGiven Boost byNa<a title="Electronics World May 2010 page 7" href="http://viewer.zmags.com/publication/9515e0b8?page=7">TECHNOLOGYINVESTMENT IN ADVANCED MANUFACTURING</a> TECHNOLOGYINVESTMENT IN ADVANCED MANUFACTURING<a title="Electronics World May 2010 page 8" href="http://viewer.zmags.com/publication/9515e0b8?page=8">QUARTERLY ANALYST COLUMNTHE INDUSTRY'SLOST</a> QUARTERLY ANALYST COLUMNTHE INDUSTRY'SLOST<a title="Electronics World May 2010 page 9" href="http://viewer.zmags.com/publication/9515e0b8?page=9">level to $70. With AMD now bloodied, bruised and </a> level to $70. With AMD now bloodied, bruised and <a title="Electronics World May 2010 page 10" href="http://viewer.zmags.com/publication/9515e0b8?page=10">ON THE BUG HUNT Source code</a> ON THE BUG HUNT Source code<a title="Electronics World May 2010 page 11" href="http://viewer.zmags.com/publication/9515e0b8?page=11"></a> <a title="Electronics World May 2010 page 12" href="http://viewer.zmags.com/publication/9515e0b8?page=12">THE TROUBLE WITH RF... Low data rate</a> THE TROUBLE WITH RF... Low data rate<a title="Electronics World May 2010 page 13" href="http://viewer.zmags.com/publication/9515e0b8?page=13">M48 packet contains about a hundred decoded bits </a> M48 packet contains about a hundred decoded bits <a title="Electronics World May 2010 page 14" href="http://viewer.zmags.com/publication/9515e0b8?page=14">ADVERTORIALHigh Power Factor andthe MORAL HI</a> ADVERTORIALHigh Power Factor andthe MORAL HI<a title="Electronics World May 2010 page 15" href="http://viewer.zmags.com/publication/9515e0b8?page=15">Figure 2: LM3445 with Passive PFCbuying a low p</a> Figure 2: LM3445 with Passive PFCbuying a low p<a title="Electronics World May 2010 page 16" href="http://viewer.zmags.com/publication/9515e0b8?page=16">LETTERSTHE ZOBEL NETWORK – INSIDEIn respons</a> LETTERSTHE ZOBEL NETWORK – INSIDEIn respons<a title="Electronics World May 2010 page 17" href="http://viewer.zmags.com/publication/9515e0b8?page=17"> Automatic Windings Ltd Unit 40 W</a> Automatic Windings Ltd Unit 40 W<a title="Electronics World May 2010 page 18" href="http://viewer.zmags.com/publication/9515e0b8?page=18">AUDIO TESTThe 5-MINUTE GUIDE toChip-Level A</a> AUDIO TESTThe 5-MINUTE GUIDE toChip-Level A<a title="Electronics World May 2010 page 19" href="http://viewer.zmags.com/publication/9515e0b8?page=19">AUDIO TESTAudio Precisionmultichannel au</a> AUDIO TESTAudio Precisionmultichannel au<a title="Electronics World May 2010 page 20" href="http://viewer.zmags.com/publication/9515e0b8?page=20">AUDIO TESTof distortion crossover. Finally, if</a> AUDIO TESTof distortion crossover. Finally, if<a title="Electronics World May 2010 page 21" href="http://viewer.zmags.com/publication/9515e0b8?page=21">FM TESTFigure 1: FM radio test setup, wit</a> FM TESTFigure 1: FM radio test setup, wit<a title="Electronics World May 2010 page 22" href="http://viewer.zmags.com/publication/9515e0b8?page=22">FM TESTFigure 3: Pre-emphasis filters (50 and</a> FM TESTFigure 3: Pre-emphasis filters (50 and<a title="Electronics World May 2010 page 23" href="http://viewer.zmags.com/publication/9515e0b8?page=23">FM TESTFigure 5: RDS signal waveform in the S</a> FM TESTFigure 5: RDS signal waveform in the S<a title="Electronics World May 2010 page 24" href="http://viewer.zmags.com/publication/9515e0b8?page=24">FM TEST100% modulation (±75kHz deviation). T</a> FM TEST100% modulation (±75kHz deviation). T<a title="Electronics World May 2010 page 25" href="http://viewer.zmags.com/publication/9515e0b8?page=25">SUBSCRIBE TOAND SAVE13%...AND receive a</a> SUBSCRIBE TOAND SAVE13%...AND receive a<a title="Electronics World May 2010 page 26" href="http://viewer.zmags.com/publication/9515e0b8?page=26">T&MJean-Louis Evans, Managing Director at TÜV Pr</a> T&MJean-Louis Evans, Managing Director at TÜV Pr<a title="Electronics World May 2010 page 27" href="http://viewer.zmags.com/publication/9515e0b8?page=27">T&MFigure 2: More robust methods ofassuring pr</a> T&MFigure 2: More robust methods ofassuring pr<a title="Electronics World May 2010 page 28" href="http://viewer.zmags.com/publication/9515e0b8?page=28">the production process28 May 10 - Electr</a> the production process28 May 10 - Electr<a title="Electronics World May 2010 page 29" href="http://viewer.zmags.com/publication/9515e0b8?page=29">Figure 4: HALT takes a morepractical approach</a> Figure 4: HALT takes a morepractical approach<a title="Electronics World May 2010 page 30" href="http://viewer.zmags.com/publication/9515e0b8?page=30">GSMPropagation Study of GSMDIMENSIONS in In</a> GSMPropagation Study of GSMDIMENSIONS in In<a title="Electronics World May 2010 page 31" href="http://viewer.zmags.com/publication/9515e0b8?page=31">GSMPower in TWOEnvironments – Part 2fie</a> GSMPower in TWOEnvironments – Part 2fie<a title="Electronics World May 2010 page 32" href="http://viewer.zmags.com/publication/9515e0b8?page=32">GSMFigure 3: Plan view (in metres) of the select</a> GSMFigure 3: Plan view (in metres) of the select<a title="Electronics World May 2010 page 33" href="http://viewer.zmags.com/publication/9515e0b8?page=33">Figure 5: Electric field strength (dB [µV/m]) ver</a> Figure 5: Electric field strength (dB [µV/m]) ver<a title="Electronics World May 2010 page 34" href="http://viewer.zmags.com/publication/9515e0b8?page=34">GSMFigure 6: Three dimensional graph showing the</a> GSMFigure 6: Three dimensional graph showing the<a title="Electronics World May 2010 page 35" href="http://viewer.zmags.com/publication/9515e0b8?page=35">ANTENNASProfessor Stojce Dimov Ilcev from the Du</a> ANTENNASProfessor Stojce Dimov Ilcev from the Du<a title="Electronics World May 2010 page 36" href="http://viewer.zmags.com/publication/9515e0b8?page=36">ANTENNASFigure 1: Geometrical parameters of</a> ANTENNASFigure 1: Geometrical parameters of<a title="Electronics World May 2010 page 37" href="http://viewer.zmags.com/publication/9515e0b8?page=37">Ex = Ea · ej(ωt-kz+фa) and Ey = Eb · ej(ωt-kz+фb)</a> Ex = Ea · ej(ωt-kz+фa) and Ey = Eb · ej(ωt-kz+фb)<a title="Electronics World May 2010 page 38" href="http://viewer.zmags.com/publication/9515e0b8?page=38">ANTENNASpossible by a proper solution of spe</a> ANTENNASpossible by a proper solution of spe<a title="Electronics World May 2010 page 39" href="http://viewer.zmags.com/publication/9515e0b8?page=39">PLC/MCUPLC with PIC16F648AMicrocontroller </a> PLC/MCUPLC with PIC16F648AMicrocontroller <a title="Electronics World May 2010 page 40" href="http://viewer.zmags.com/publication/9515e0b8?page=40">PLC/MCUTable 2: The macro “encod_4_2_p_E” toget</a> PLC/MCUTable 2: The macro “encod_4_2_p_E” toget<a title="Electronics World May 2010 page 41" href="http://viewer.zmags.com/publication/9515e0b8?page=41">Table 4: The macro “encod_8_3_p_E” together with </a> Table 4: The macro “encod_8_3_p_E” together with <a title="Electronics World May 2010 page 42" href="http://viewer.zmags.com/publication/9515e0b8?page=42">PLC/MCUTable 5: The macro “encod_dec_bcd_p” to</a> PLC/MCUTable 5: The macro “encod_dec_bcd_p” to<a title="Electronics World May 2010 page 43" href="http://viewer.zmags.com/publication/9515e0b8?page=43">PLC/MCUTable 6: The macro “encod_dec_bcd_p_E” </a> PLC/MCUTable 6: The macro “encod_dec_bcd_p_E” <a title="Electronics World May 2010 page 44" href="http://viewer.zmags.com/publication/9515e0b8?page=44">DESIGNUSE OF AN AGC AMPLIFIER AS ASOFT LIMIT</a> DESIGNUSE OF AN AGC AMPLIFIER AS ASOFT LIMIT<a title="Electronics World May 2010 page 45" href="http://viewer.zmags.com/publication/9515e0b8?page=45">resistor R12 can be adjusted to the needed amplit</a> resistor R12 can be adjusted to the needed amplit<a title="Electronics World May 2010 page 46" href="http://viewer.zmags.com/publication/9515e0b8?page=46">GMC Instrumentation - stand number F30</a> GMC Instrumentation - stand number F30<a title="Electronics World May 2010 page 47" href="http://viewer.zmags.com/publication/9515e0b8?page=47">PRODUCTSULTRA-SMALL XENONPHOTOFLASH DRIVER ICS</a> PRODUCTSULTRA-SMALL XENONPHOTOFLASH DRIVER ICS<a title="Electronics World May 2010 page 48" href="http://viewer.zmags.com/publication/9515e0b8?page=48">PRODUCTSAPD DIRECT PCB CONNECTORELIMINATES BO</a> PRODUCTSAPD DIRECT PCB CONNECTORELIMINATES BO<a title="Electronics World May 2010 page 49" href="http://viewer.zmags.com/publication/9515e0b8?page=49">AMPSYS ELECTRONICS READIES THE ANTI-MULTIPATH FM</a> AMPSYS ELECTRONICS READIES THE ANTI-MULTIPATH FM<a title="Electronics World May 2010 page 50" href="http://viewer.zmags.com/publication/9515e0b8?page=50">LAST NOTE </a> LAST NOTE <a title="Electronics World May 2010 page 51" href="http://viewer.zmags.com/publication/9515e0b8?page=51"></a> <a title="Electronics World May 2010 page 52" href="http://viewer.zmags.com/publication/9515e0b8?page=52"></a>