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<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/622b36e2ff7f9c46a6d98c94/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b36e2ff7f9c46a6d98c94/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span> </div><div class="t m1 x2 h3 y1 ff2 fs1 fc0 sc0 ls1 ws1">Application Note</div><div class="t m2 x3 h4 y2 ff2 fs2 fc0 sc0 ls2 ws0"> </div><div class="t m1 x4 h3 y1 ff2 fs1 fc0 sc0 ls3 ws2"> AN039</div><div class="t m0 x5 h5 y3 ff1 fs3 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y4 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y5 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x7 h7 y6 ff3 fs5 fc0 sc0 ls4 ws0"> SWRA054 P<span class="ws3">age 1 of 20 </span></div><div class="t m0 x6 h8 y7 ff4 fs6 fc0 sc0 ls5 ws4">Using the CC1100/CC1150 in the European 433 and 868 MHz </div><div class="t m0 x6 h8 y8 ff4 fs6 fc0 sc0 ls6 ws5">ISM bands</div><div class="t m0 x8 h6 y9 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x3 h9 ya ff4 fs4 fc0 sc0 ls7 ws6">By M. Engjom</div><div class="t m0 x9 ha yb ff4 fs7 fc0 sc0 ls2 ws0"> </div><div class="t m0 xa h9 yc ff4 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 yd ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h8 ye ff4 fs6 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 hb yf ff4 fs8 fc0 sc0 ls8 ws0">Keywords </div><div class="t m0 x6 h6 y10 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y11 ff5 fs4 fc0 sc0 ls2 ws0">•<span class="ff3"> <span class="_ _1"> </span><span class="ff6 ls9 ws7">Modulation bandwidth </span></span></div><div class="t m0 x6 h6 y12 ff5 fs4 fc0 sc0 ls2 ws0">•<span class="ff3"> <span class="_ _1"> </span><span class="ff6 lsa ws8">Occupied bandwidth </span></span></div><div class="t m0 x6 h6 y13 ff5 fs4 fc0 sc0 ls2 ws0">•<span class="ff3"> <span class="_ _1"> </span><span class="ff6 lsb ws9">ETSI EN 300 220 </span></span></div><div class="t m0 xb h6 y14 ff5 fs4 fc0 sc0 ls2 ws0">•<span class="ff3"> <span class="_ _1"> </span><span class="ff6 lsc">OOK/ASK </span></span></div><div class="t m0 xb h6 y15 ff5 fs4 fc0 sc0 ls2 ws0">•<span class="ff3"> <span class="_ _1"> </span><span class="ff6 lsd">GFSK </span></span></div><div class="t m0 x6 h6 y16 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y17 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y18 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 hb y19 ff4 fs8 fc0 sc0 ls2 wsa">1 Introduction </div><div class="t m0 x6 h6 y1a ff3 fs4 fc0 sc0 ls9 wsb">The CC1100 is a truly low-cost, highly </div><div class="t m0 x6 h6 y1b ff3 fs4 fc0 sc0 ls2 wsc">integrated and very flexible RF </div><div class="t m0 x6 h6 y1c ff3 fs4 fc0 sc0 lse wsd">transceiver. The CC1100 is primarily </div><div class="t m0 x6 h6 y1d ff3 fs4 fc0 sc0 lsf wse">designed for use in low-power applications </div><div class="t m0 x6 h6 y1e ff3 fs4 fc0 sc0 ls9 wsf">in the 315, 433, 868 and 915MHz ISM </div><div class="t m0 x6 h6 y1f ff3 fs4 fc0 sc0 lse ws10">bands. The CC1150 is the transmitter </div><div class="t m0 x6 h6 y20 ff3 fs4 fc0 sc0 lse ws11">version of the CC1100, and is also </div><div class="t m0 x6 h6 y21 ff3 fs4 fc0 sc0 ls2 ws12">covered in this document. </div><div class="t m0 x6 h6 y22 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 xb h6 y1a ff3 fs4 fc0 sc0 lsa ws13">This application note describes how to use </div><div class="t m0 xb h6 y1b ff3 fs4 fc0 sc0 lsa ws14">the CC1100 and CC1150 in the European </div><div class="t m0 xb h6 y1c ff3 fs4 fc0 sc0 lse ws15">433 and 868 MHz ISM bands and comply </div><div class="t m0 xb h6 y1d ff3 fs4 fc0 sc0 ls10 ws16">with relevant regulations. </div><div class="t m0 xb h6 y1e ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 xb h6 y1f ff3 fs4 fc0 sc0 ls9 ws17">The limiting factors caused by the ETSI </div><div class="t m0 xb h6 y20 ff3 fs4 fc0 sc0 ls11 ws18">regulations are discussed, and different </div><div class="t m0 xb h6 y21 ff3 fs4 fc0 sc0 ls12 ws19">sets of transmit data rate, output power </div><div class="t m0 xb h6 y22 ff3 fs4 fc0 sc0 lsf ws1a">and other transceiver parameters are </div><div class="t m0 xb h6 y23 ff3 fs4 fc0 sc0 ls13 ws0">given.</div><div class="t m0 x6 h6 y24 ff3 fs4 fc0 sc0 ls2 ws0"> </div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div> </body> </html>

<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b36e2ff7f9c46a6d98c94/bg2.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span> </div><div class="t m1 x2 h3 y1 ff2 fs1 fc0 sc0 ls1 ws1">Application Note</div><div class="t m2 x3 h4 y2 ff2 fs2 fc0 sc0 ls2 ws0"> </div><div class="t m1 x4 h3 y1 ff2 fs1 fc0 sc0 ls3 ws2"> AN039</div><div class="t m0 x5 h5 y3 ff1 fs3 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y4 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y5 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x7 h7 y6 ff3 fs5 fc0 sc0 ls4 ws0"> SWRA054 P<span class="ws3">age 2 of 20 </span></div><div class="t m0 x6 h8 y7 ff4 fs6 fc0 sc0 ls14 ws1b">Table of Contents </div><div class="t m0 x6 h8 y8 ff4 fs6 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 hc yc ff4 fs4 fc0 sc0 ls12 ws0">KEYWO<span class="ls15">RDS.......................................................................................................................<span class="ls16">.......<span class="_ _2"> </span>1<span class="ff7 fs8 ls2"> </span></span></span></div><div class="t m0 x6 hc y25 ff4 fs4 fc0 sc0 ls2 ws0">1<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ls17">INTRODUCT<span class="ls16">ION<span class="_ _4"></span>.............................................................................................................<span class="_ _2"> </span>1</span></span><span class="ff7 fs8"> </span></div><div class="t m0 x6 hc y26 ff4 fs4 fc0 sc0 ls2 ws0">2<span class="ff7 fs8"> <span class="_ _3"> </span></span>ABBREVIATIO<span class="ls15">NS...........................................................................................................<span class="_"> </span>2<span class="_ _5"></span><span class="ff7 fs8 ls2"> </span></span></div><div class="t m0 x6 hc y27 ff4 fs4 fc0 sc0 ls2 ws0">3<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ls18 ws1c">SELECTION OF OPERATING <span class="lsa ws8">FREQUENCY AND </span></span><span class="ls19">CRYSTAL<span class="_ _6"> </span>....................................<span class="_ _2"> </span>3</span><span class="ff7 fs8"> </span></div><div class="t m0 x6 hc y28 ff4 fs4 fc0 sc0 ls2 ws0">4<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ls9 ws7">LIMITING FACTORS TOWARDS RE<span class="ls1a ws1d">GULATORY REQU</span></span><span class="ls19">IREMENTS<span class="_ _4"></span>..........................<span class="_ _2"> </span>3</span><span class="ff7 fs8"> </span></div><div class="t m0 xc hc y29 ff3 fs4 fc0 sc0 ls1b ws0">4.1<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">S<span class="fs5 ls1c ws1e">PURIOUS EMISSIONS<span class="_"> </span></span><span class="ls16">................................................................................................<span class="_"> </span>3<span class="_ _5"></span><span class="ff7 fs8 ls2"> </span></span></span></div><div class="t m0 xc hc y2a ff3 fs4 fc0 sc0 ls1b ws0">4.2<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">P<span class="fs5 ls1d ws1f">HASE NOISE<span class="_ _4"></span></span><span class="ls16">.............................................................................................................<span class="_ _6"> </span>3</span><span class="ff7 fs8"> </span></span></div><div class="t m0 xc hc y2b ff3 fs4 fc0 sc0 ls1b ws0">4.3<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">O<span class="fs5 ls1e ws20">CCUPIED BANDWIDTH AND MODULATION BANDWIDTH<span class="_ _6"> </span></span><span class="ls16">.................................................<span class="_ _6"> </span>4</span><span class="ff7 fs8"> </span></span></div><div class="t m0 xc hc y2c ff3 fs4 fc0 sc0 ls1b ws0">4.4<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">O<span class="fs5 ls1e ws20">THER CONSIDERATIONS<span class="_"> </span></span><span class="ls16">...........................................................................................<span class="_"> </span>4<span class="_ _5"></span><span class="ff7 fs8 ls2"> </span></span></span></div><div class="t m0 x6 hc y2d ff4 fs4 fc0 sc0 ls2 ws0">5<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ls1b ws21">SUGGESTED SE</span><span class="ls15">TTINGS<span class="_ _4"></span>...............................................................................................<span class="_ _2"> </span>5</span><span class="ff7 fs8"> </span></div><div class="t m0 xc hc y2e ff3 fs4 fc0 sc0 ls1b ws0">5.1<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">E<span class="fs5 ls1f">UROPEAN </span><span class="lsa">433</span><span class="fs5"> </span><span class="ls7">MH<span class="fs5 ls20 ws22">Z BAND<span class="_"> </span></span><span class="ls16">........................................................................................<span class="_ _2"> </span>6</span></span><span class="ff7 fs8"> </span></span></div><div class="t m0 xc hc y2f ff3 fs4 fc0 sc0 ls1b ws0">5.2<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">E<span class="fs5 ls1f">UROPEAN </span><span class="ls1a">868MH<span class="fs5 ls20 ws22">Z BAND<span class="_ _8"> </span></span><span class="ls15">.......................................................................................<span class="_ _2"> </span>11</span></span><span class="ff7 fs8"> </span></span></div><div class="t m0 x6 hc y30 ff4 fs4 fc0 sc0 ls2 ws0">6<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ls21">CONCLUSIO<span class="ls15">NS<span class="_ _4"></span>............................................................................................................<span class="_ _2"> </span>18</span></span><span class="ff7 fs8"> </span></div><div class="t m0 x6 hc y31 ff4 fs4 fc0 sc0 ls2 ws0">7<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ws12">GENERAL INFO</span><span class="ls22">RMATION<span class="_ _2"> </span>..........................................................................................<span class="_ _2"> </span>19</span><span class="ff7 fs8"> </span></div><div class="t m0 xc hc y32 ff3 fs4 fc0 sc0 ls1b ws0">7.1<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">D<span class="fs5 ls23">OCUMENT </span>H<span class="fs5 ls23">ISTORY</span><span class="ls15">................................................................................................<span class="_ _2"> </span>19</span><span class="ff7 fs8"> </span></span></div><div class="t m0 xc hc y33 ff3 fs4 fc0 sc0 ls1b ws0">7.2<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">D<span class="fs5 ls1d">ISCLAIMER<span class="_ _4"></span></span><span class="ls15">.............................................................................................................<span class="_ _2"> </span>19<span class="_ _5"></span><span class="ff7 fs8 ls2"> </span></span></span></div><div class="t m0 xc hc y34 ff3 fs4 fc0 sc0 ls1b ws0">7.3<span class="ff7 fs8 ls2"> <span class="_ _7"> </span></span><span class="ls2">T<span class="fs5 ls24">RADEMARKS<span class="_"> </span></span><span class="ls15">..........................................................................................................<span class="_ _2"> </span>19</span><span class="ff7 fs8"> </span></span></div><div class="t m0 x6 hc y35 ff4 fs4 fc0 sc0 ls2 ws0">8<span class="ff7 fs8"> <span class="_ _3"> </span></span><span class="ls1a ws1d">ADDRESS INFORM</span><span class="ls22">ATION<span class="_ _2"> </span>..........................................................................................<span class="_ _2"> </span>20</span><span class="ff7 fs8"> </span></div><div class="t m0 x6 h6 y36 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y37 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y38 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y39 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y3a ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y3b ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y3c ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y3d ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y3e ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y3f ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 hb y40 ff4 fs8 fc0 sc0 ls25 ws23">2 Abbreviations </div><div class="t m0 x6 h6 y41 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y42 ff3 fs4 fc0 sc0 ls18 ws24">ASK <span class="_ _9"> </span>Amplitude Shift Keying (In this document the term ASK refers to a </div><div class="t m0 xd h6 y43 ff3 fs4 fc0 sc0 ls13 ws25">special ASK case, i.e. OOK with pulse shaping) </div><div class="t m0 x6 h6 y44 ff3 fs4 fc0 sc0 ls18 ws26">EM <span class="_ _a"></span> Evaluation <span class="_ _b"></span>module </div><div class="t m0 x6 h6 y45 ff3 fs4 fc0 sc0 ls1a ws27">ERC <span class="_ _c"></span> European <span class="_ _b"></span>Radiocommunications <span class="_ _b"></span>Committee </div><div class="t m0 x6 h6 y46 ff3 fs4 fc0 sc0 ls2 ws12">ETSI <span class="_ _d"> </span> <span class="_ _e"> </span> <span class="_ _e"> </span>European Telecommunications Standards Institute </div><div class="t m0 x6 h6 y47 ff3 fs4 fc0 sc0 ls10 ws16">GFSK <span class="_ _f"> </span> <span class="_ _e"> </span> <span class="_ _e"> </span>Gaussian Frequency Shift Keying </div><div class="t m0 x6 h6 y48 ff3 fs4 fc0 sc0 ls18 ws26">ISM <span class="_ _10"></span> Industrial, <span class="_ _b"></span>Scientific, <span class="_ _b"></span>Medical </div><div class="t m0 x6 h6 y49 ff3 fs4 fc0 sc0 ls12 ws28">MBW <span class="_ _11"></span> Modulation <span class="_ _b"></span>Bandwidth </div><div class="t m0 x6 h6 y4a ff3 fs4 fc0 sc0 ls11 ws29">OBW <span class="_ _12"></span> Occupied <span class="_ _b"></span>Bandwidth </div><div class="t m0 x6 h6 y4b ff3 fs4 fc0 sc0 ls7 ws2a">OOK <span class="_ _13"></span> On <span class="_ _b"></span>Off <span class="_ _b"></span>Keying </div><div class="t m0 x6 h6 y4c ff3 fs4 fc0 sc0 lsa ws2b">PLL <span class="_ _10"></span> Phase <span class="_ _b"></span>Locked <span class="_ _b"></span>Loop </div><div class="t m0 x6 h6 y4d ff3 fs4 fc0 sc0 lse ws2c">RBW <span class="_ _14"></span> Resolution <span class="_ _b"></span>Bandwidth </div><div class="t m0 x6 h6 y4e ff3 fs4 fc0 sc0 ls2 ws0"> </div><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" 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false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div>

<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b36e2ff7f9c46a6d98c94/bg3.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span> </div><div class="t m1 x2 h3 y1 ff2 fs1 fc0 sc0 ls1 ws1">Application Note</div><div class="t m2 x3 h4 y2 ff2 fs2 fc0 sc0 ls2 ws0"> </div><div class="t m1 x4 h3 y1 ff2 fs1 fc0 sc0 ls3 ws2"> AN039</div><div class="t m0 x5 h5 y3 ff1 fs3 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y4 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y5 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x7 h7 y6 ff3 fs5 fc0 sc0 ls4 ws0"> SWRA054 P<span class="ws3">age 3 of 20 </span></div><div class="t m0 x6 hb y4f ff4 fs8 fc0 sc0 ls26 ws2d">3 <span class="_ _15"> </span>Selection of operating frequency and cry<span class="_ _5"></span>stal </div><div class="t m0 x6 h6 y50 ff3 fs4 fc0 sc0 ls11 ws2e">The CC1100/CC1150 will, as any transceiver or<span class="lse ws2f"> transmitter using a frequency synthesizer </span></div><div class="t m0 x6 h6 y51 ff3 fs4 fc0 sc0 ls12 ws30">with high resolution, show some variation <span class="ls11 ws31">in performance across the usable frequency range. </span></div><div class="t m0 x6 h6 y52 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y53 ff3 fs4 fc0 sc0 ls11 ws32">The CC1100/CC1150 does allow selection of vi<span class="ls12 ws33">rtually any channel/frequency within the 400 </span></div><div class="t m0 x6 h6 y54 ff3 fs4 fc0 sc0 lsa ws34">to 464 MHz and 800 to 928 MHz operating ranges, but so<span class="ls21 ws35">me variations in TX spurious levels </span></div><div class="t m0 x6 h6 y55 ff3 fs4 fc0 sc0 ls13 ws36">and RX sensitivity must be expec<span class="ls21 ws37">ted. Therefore it is nece<span class="ws38">ssary to select TX and RX </span></span></div><div class="t m0 x6 h6 y56 ff3 fs4 fc0 sc0 ls21 ws1d">frequencies with care to optimize performance. </div><div class="t m0 x6 h6 y57 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y58 ff3 fs4 fc0 sc0 ls2 ws39">Alternatively it is possible to use a differ<span class="lse ws3a">ent crystal than the 26 MHz crystal used on the </span></div><div class="t m0 x6 h6 y59 ff3 fs4 fc0 sc0 ls11 ws3b">CC1100EM/CC1150EM. When changing from 26 MHz <span class="ls12 ws3c">to another crystal frequency within the </span></div><div class="t m0 x6 h6 y5a ff3 fs4 fc0 sc0 ls27 ws3d">26 to 27 MHz range, spurious component<span class="lse ws3e">s generated by the CC1100/CC1150 will move </span></div><div class="t m0 x6 h6 y5b ff3 fs4 fc0 sc0 ls9 ws3f">along the frequency axis. Thus a specified <span class="ls2 ws40">channel/frequency will have slightly different </span></div><div class="t m0 x6 h6 y5c ff3 fs4 fc0 sc0 ls1a ws41">performance for different crystal frequencies, i.e. selection of crystal frequency can be used </div><div class="t m0 x6 h6 y5d ff3 fs4 fc0 sc0 ls1a ws42">as a tool to improve the CC1100/CC1150 performance for a given channel. </div><div class="t m0 x6 h6 y5e ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y5f ff3 fs4 fc0 sc0 lsf ws43">The channels suggested in this document are <span class="ls11 ws44">mainly based on usage of a 26 MHz <span class="_ _5"></span>crystal </span></div><div class="t m0 x6 h6 y60 ff3 fs4 fc0 sc0 lse ws45">frequency. When selecting other crystal frequencie<span class="lsf ws46">s it is necessary to ensure TX and RX </span></div><div class="t m0 x6 h6 y61 ff3 fs4 fc0 sc0 lsa ws47">performance for the selected channels. This <span class="ws48">is required to ensure compliance with </span></div><div class="t m0 x6 h6 y62 ff3 fs4 fc0 sc0 ls1a ws1d">regulations, and confirm performance in<span class="ls13 ws25"> line with specifications. </span></div><div class="t m0 x6 h6 y63 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y64 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 hb y65 ff4 fs8 fc0 sc0 ls28 ws49">4 <span class="_ _15"> </span>Limiting factors toward<span class="ls26 ws2d">s regulatory requirements </span></div><div class="t m0 x6 h9 y66 ff4 fs4 fc0 sc0 ls29 ws4a">4.1 Spurious <span class="_ _16"></span>emissions </div><div class="t m0 x6 h6 y67 ff3 fs4 fc0 sc0 ls2 ws4b">Regulatory limits specify the allowed RF level <span class="ls2a ws4c">of spurious emissions (spurs) produced by a </span></div><div class="t m0 x6 h6 y68 ff3 fs4 fc0 sc0 lsa ws34">transmitter or receiver. The spurs are def<span class="ls1a ws4d">ined as frequency components outside the intended </span></div><div class="t m0 x6 h6 y69 ff3 fs4 fc0 sc0 ls1a ws42">operating range. </div><div class="t m0 x6 h6 y6a ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y6b ff3 fs4 fc0 sc0 ls21 ws4e">In short the applicable TX limits are -36 <span class="ws4f">and -54dBm in the European ISM bands. The spur </span></div><div class="t m0 x6 h6 y6c ff3 fs4 fc0 sc0 ls21 ws50">level is measured with the <span class="_ _17"></span>transmitter outputting an unmodulated carrier (if possible). The </div><div class="t m0 x6 h6 y6d ff3 fs4 fc0 sc0 lsa ws51">resolution bandwidth (RBW) used on the spectr<span class="ls2b ws52">um analyzer is 100 kHz for frequencies below </span></div><div class="t m0 x6 h6 y6e ff3 fs4 fc0 sc0 lsa ws8">1 GHz, and 1 MHz for frequencies above 1 GHz. </div><div class="t m0 x6 h6 y6f ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y70 ff3 fs4 fc0 sc0 lsa ws53">For the specific details on spurious limits <span class="ls1a ws54">and measurement methods, please refer to the </span></div><div class="t m0 x6 h6 y71 ff3 fs4 fc0 sc0 ls13 ws25">ETSI EN 300 220 standard. </div><div class="t m0 x6 h6 y72 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h9 y73 ff4 fs4 fc0 sc0 ls2 ws55">4.2 Phase <span class="_ _16"></span>noise </div><div class="t m0 x6 h6 y74 ff3 fs4 fc0 sc0 ls11 ws56">The phase noise produced by the transceiver will <span class="lse ws57">in some cases be a limiting factor for the </span></div><div class="t m0 x6 h6 y75 ff3 fs4 fc0 sc0 ls9 ws58">transmitted output power, even if there is no s<span class="ls13 ws59">pecific regulatory limit to phase noise. If a </span></div><div class="t m0 x6 h6 y76 ff3 fs4 fc0 sc0 ls1a ws5a">transmitter is operating close to the frequency band edge, or in a narrow frequency band, the </div><div class="t m0 x6 h6 y77 ff3 fs4 fc0 sc0 ls1a ws5b">power level measured at the band edge will to <span class="ws5c">some degree be determined by the transmitter </span></div><div class="t m0 x6 h6 y78 ff3 fs4 fc0 sc0 lse ws5d">phase noise. </div><div class="t m0 x6 h6 y79 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y7a ff3 fs4 fc0 sc0 ls21 ws5e">In a sufficiently wide band this is simply so<span class="_ _5"></span><span class="ws5f">lved by selecting frequencies away from the band </span></div><div class="t m0 x6 h6 y7b ff3 fs4 fc0 sc0 ls9 ws60">edges. In a narrow frequency band, it may however<span class="ls21 ws61"> be necessary to transmit with an output </span></div><div class="t m0 x6 h6 y7c ff3 fs4 fc0 sc0 ls18 ws1c">power below the maximum limit to comply with the regulatory limits. </div><div class="t m0 x6 h6 y7d ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y7e ff3 fs4 fc0 sc0 ls2 ws0"> </div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div>

<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b36e2ff7f9c46a6d98c94/bg4.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span> </div><div class="t m1 x2 h3 y1 ff2 fs1 fc0 sc0 ls1 ws1">Application Note</div><div class="t m2 x3 h4 y2 ff2 fs2 fc0 sc0 ls2 ws0"> </div><div class="t m1 x4 h3 y1 ff2 fs1 fc0 sc0 ls3 ws2"> AN039</div><div class="t m0 x5 h5 y3 ff1 fs3 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y4 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y5 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x7 h7 y6 ff3 fs5 fc0 sc0 ls4 ws0"> SWRA054 P<span class="ws3">age 4 of 20 </span></div><div class="t m0 x6 h9 y7f ff4 fs4 fc0 sc0 ls10 ws16">4.3 <span class="_ _18"> </span>Occupied bandw<span class="_ _17"></span>idth and modulation bandw<span class="_ _17"></span>idth </div><div class="t m0 x6 h6 y80 ff3 fs4 fc0 sc0 lse ws45">The occupied bandwidth or modulation bandwidth <span class="ls1a ws62">is to a certain degree a function of the </span></div><div class="t m0 x6 h6 y81 ff3 fs4 fc0 sc0 lse ws5d">phase noise. </div><div class="t m0 x6 h6 y82 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y83 ff3 fs4 fc0 sc0 ls12 ws63">In Europe ETSI EN 300 <span class="_ _19"></span>220 specifies a limit fo<span class="ls9 ws64">r modulation bandwidth (MBW). Note that the </span></div><div class="t m0 x6 h6 y84 ff3 fs4 fc0 sc0 ls1a ws65">ETSI requirement is ambiguous as it spec<span class="lse ws66">ifies the measurement to be done with “wide </span></div><div class="t m0 x6 h6 y85 ff3 fs4 fc0 sc0 lsa ws67">enough” resolution bandwidth (RBW) on the spec<span class="ls1a ws68">trum analyzer. And the used RBW has a </span></div><div class="t m0 x6 h6 y86 ff3 fs4 fc0 sc0 lse ws69">strong impact on the measured MBW. There are <span class="ls21 ws6a">indications that this requirement will be </span></div><div class="t m0 x6 h6 y87 ff3 fs4 fc0 sc0 ls9 ws6b">relaxed and more clearly defined in the new ve<span class="ls21 ws6c">rsion of EN 300 <span class="_ _1a"></span>220 that is expected early </span></div><div class="t m0 x6 h6 y88 ff3 fs4 fc0 sc0 ls12 ws0">2006. </div><div class="t m0 x6 h6 y89 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y8a ff3 fs4 fc0 sc0 lsa ws6d">The conducted MBW measurements presented in<span class="ws6e"> this document are carried out using an </span></div><div class="t m0 x6 h6 y8b ff3 fs4 fc0 sc0 ls12 ws6f">R&S FSIQ7 spectrum analyzer, with the RBW main<span class="lse ws70">ly set to 3 kHz. The spectrum analyzer is </span></div><div class="t m0 x6 h6 y8c ff3 fs4 fc0 sc0 ls9 ws71">set to maximum hold mode as specified in <span class="ls12 ws72">ETSI EN 300 220. The transmitter is modulated </span></div><div class="t m0 x6 h6 y8d ff3 fs4 fc0 sc0 ls9 ws7">with a PN sequence. </div><div class="t m0 x6 h6 y8e ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y8f ff3 fs4 fc0 sc0 ls12 ws72">As mentioned above the ETSI EN 300 <span class="_ _1a"></span>220 standard does not specify the exact RBW to be </div><div class="t m0 x6 h6 y90 ff3 fs4 fc0 sc0 ls1a ws73">used when performing the MBW measurement. The <span class="ls9 ws74">exact term given in the standard is “The </span></div><div class="t m0 x6 h6 y91 ff3 fs4 fc0 sc0 ls9 ws75">test laboratory shall ensure that the spectr<span class="ls1a ws76">um analyser’s span and bandwidth is sufficiently </span></div><div class="t m0 x6 h6 y92 ff3 fs4 fc0 sc0 lsa ws77">wide enough and scan time slow enough, to ensur<span class="ls1a ws78">e that the emission and all its major </span></div><div class="t m0 x6 h6 y93 ff3 fs4 fc0 sc0 lse ws5d">modulation side bands are captured”. </div><div class="t m0 x6 h6 y94 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 y95 ff3 fs4 fc0 sc0 ls1a ws79">Outside the modulated spectrum the power le<span class="lse ws7a">vel measured by such a MBW measurement </span></div><div class="t m0 x6 h6 y96 ff3 fs4 fc0 sc0 lse ws7b">will scale with the spectrum analyzer‘s RBW. Th<span class="lsf ws7c">is is the case since a spectrum analyzer will </span></div><div class="t m0 x6 h6 y97 ff3 fs4 fc0 sc0 lse ws7d">receive a higher amount of random noise when measuring in a larger bandwidth, and thus </div><div class="t m0 x6 h6 y98 ff3 fs4 fc0 sc0 ls12 ws3c">accumulate a higher power level due to the maximum hold detection. The definition within the </div><div class="t m0 x6 h6 y99 ff3 fs4 fc0 sc0 ls11 ws7e">standard indicates that the RBW should be dec<span class="lsf ws7f">reased as much as possible while still </span></div><div class="t m0 x6 h6 y9a ff3 fs4 fc0 sc0 ls12 ws80">retaining the level of the modulated si<span class="ls21 ws81">gnal and modulation sidebands. As mentioned above </span></div><div class="t m0 x6 h6 y9b ff3 fs4 fc0 sc0 lsf ws82">using a 3 kHz RBW should be sufficient <span class="ls21 ws42">for measuring the modulation bandwidth. </span></div><div class="t m0 x6 h6 y9c ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h9 y9d ff4 fs4 fc0 sc0 ls9 ws83">4.4 Other <span class="_ _16"></span>considerations </div><div class="t m0 x6 h6 y9e ff3 fs4 fc0 sc0 ls1a ws1d">The results presented in this document ar<span class="lsf ws82">e based on conducted measurements performed on </span></div><div class="t m0 x6 h6 y9f ff3 fs4 fc0 sc0 ls2 ws12">CC1100EM modules that are tuned to zero frequency offset. </div><div class="t m0 x6 h6 ya0 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 ya1 ff3 fs4 fc0 sc0 ls11 ws31">Using conducted measurements will in some <span class="lsf ws82">cases give results that can be seen as </span></div><div class="t m0 x6 h6 ya2 ff3 fs4 fc0 sc0 ls21 ws42">conservative. For instance does a typical <span class="ls11 ws31">CC1100 application use antennas with less than </span></div><div class="t m0 x6 h6 ya3 ff3 fs4 fc0 sc0 ls18 ws1c">0dBi gain, e.g. PCB antennas. In this case<span class="ls9 ws7"> the output power from the CC1100 can be </span></div><div class="t m0 x6 h6 ya4 ff3 fs4 fc0 sc0 ls11 ws31">increased when doing radiated measurements, while<span class="ls13 ws25"> still meeting the regulatory limits due to </span></div><div class="t m0 x6 h6 ya5 ff3 fs4 fc0 sc0 ls1a ws1d">the antenna losses. </div><div class="t m0 x6 h6 ya6 ff3 fs4 fc0 sc0 ls2 ws0"> </div><div class="t m0 x6 h6 ya7 ff3 fs4 fc0 sc0 lse ws5d">For a practical application it is necessary <span class="ls13 ws25">to include the expected frequency drift of the </span></div><div class="t m0 x6 h6 ya8 ff3 fs4 fc0 sc0 ls29 ws84">transmitter, i.e. the crystal tolerances. T<span class="_ _17"></span><span class="lse ws5d">he measurements presented in this document are </span></div><div class="t m0 x6 h6 ya9 ff3 fs4 fc0 sc0 ls7 ws6">given for 0 crystal offset. </div><div class="t m0 x6 h6 yaa ff3 fs4 fc0 sc0 ls2 ws0"> </div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div>