<p class="MsoNormal" style="margin-top:13.2pt"><span style="font-size:10.5pt;
mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial;color:#333740">作者：</span><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;font-family:"Arial","sans-serif";
color:#333740">Marty Richardson</span><span style="font-size:10.5pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#333740">，</span><span style="font-size:10.5pt;mso-bidi-font-size:
11.0pt;font-family:"Arial","sans-serif";color:#333740">ADI </span><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#333740">高级应用工程师</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">简介</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></h1>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">市场对更高带宽和更高数据速率的需求日益增加，系统频率和调制速率要求不断提高。随着曾经用于军事和国防领域的应用进入消费市场，低功耗变得至关重要。在满足这些要求的同时，还需要保证：不会牺牲电气性能或功能。为了满足这些要求，除了改善进信噪比</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(SNR)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">、误码率</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(BER)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">和用户熟悉的优质服务外，还必须改善本地振荡器</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(LO)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">的相位噪声。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">新推出的</span><a href="https://www.analog.com/en/products/adf5610.html"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";
color:#009BD0;letter-spacing:-.15pt;text-decoration:none;text-underline:none">ADF5610</span></a><span style="mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">是一款集成式锁相环</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">(PLL)</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">和压控振荡器</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(VCO)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">，充分体现了</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADI</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">致力于解决这些问题最终取得的成果。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">频率覆盖范围</span><span style="font-size:10.5pt;font-family:
"Arial","sans-serif""><o:p></o:p></span></h1>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">总共覆盖</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">8</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">个倍频，</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">VCO</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">基波频率范围为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">3.65 GHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">至</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">7.3 GHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">，此频率可反馈给</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">PLL</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">，以最小化相位噪声。单端输出</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(RFOUT)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">使基波频率翻倍，可提供</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">7.3 Ghz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">至</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">14.6 GHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">频率，而差分输出通过使用</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">1/2/4/8/16/32/64/128</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">分频设置，同时支持</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">57 MHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">至</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">14.6 GHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">全频率范围。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p><img src="http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108493-294390…; /></p>
![http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108493-294390…](http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108493-294390-fig-01.jpg"){kind=link}
<p class="MsoNormal" style="margin-top:5.0pt"><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#231F20">图</span></i><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-size:10.5pt;
mso-bidi-font-size:11.0pt;font-family:"Arial","sans-serif";color:#231F20;
mso-ansi-language:EN-US">1.ADF5610</span></i><i style="mso-bidi-font-style:
normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#231F20">的功能框图。</span></i><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-size:10.5pt;
font-family:"Arial","sans-serif";mso-ansi-language:EN-US"><o:p></o:p></span></i></p>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">ADF5610 </span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">的</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">VCO</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">架构可实现出色的宽带频率合成器性能，同时保持行业领先的相位噪声性能，在</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">10 GHz </span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">、</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">100 kHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">偏置时，标称开环相位噪声为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">–114 dBc/Hz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">。在仅使用一个无源环路滤波器的情况下，内部状态机就可以使频率建立时间低于</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">40 μs</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">；除非需要更快的建立时间，否则无需使用额外的电路或查找表</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(LUT)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="mso-bookmark:_Hlk40804176"><span style="font-size:10.5pt;mso-bidi-font-size:12.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#006FB9">适合转换器时钟应用的出色</span></span><span style="mso-bookmark:_Hlk40804176"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;font-family:"Arial","sans-serif";color:#006FB9">PLL</span></span><span style="mso-bookmark:_Hlk40804176"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">性能</span></span><span style="mso-bookmark:_Hlk40804176"><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></span></h1>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">虽然</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">内部的锁相环</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(PLL)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">具有中等品质因数</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(FOM)–229 dBc/Hz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">（高电流模式下为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">–232 dBc/Hz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">），但考虑到</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">1/f</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">噪声</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(–129 dBc/Hz)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">和出色的</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">VCO</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">相位噪声特性，则可以实现低于</span><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">38 fs</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">（</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">1 kHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">至</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">100 MHz</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">集成限值）的</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">rms</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">抖动。因此，</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">非常适合要求严苛的转换器时钟应用。环路滤波器电阻值应保持最小，以在高频率</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(100 MHz)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">范围内实现较低的热噪声。为了达到这个性能水平，必须使用超低噪声基准电压源。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p><img src="http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108494-294390…; /></p>
![http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108494-294390…](http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108494-294390-fig-02.jpg"){kind=link}
<p class="MsoNormal"><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#231F20">图</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:
11.0pt;font-family:"Arial","sans-serif";color:#231F20">2.RMS</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#231F20">抖动：</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;font-family:"Arial","sans-serif";
color:#231F20">8.0 GHz</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#231F20">。</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;font-family:
"Arial","sans-serif""><o:p></o:p></span></i></p>
<p><img src="http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108495-294390…; /></p>
![http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108495-294390…](http://new.eetrend.com/files/2020-10/wen_zhang_/100054921-108495-294390-fig-03.jpg"){kind=link}
<p class="MsoNormal"><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#231F20">图</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:
11.0pt;font-family:"Arial","sans-serif";color:#231F20">3.RMS</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:
11.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#231F20">抖动：</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;font-family:"Arial","sans-serif";
color:#231F20">14.4 GHz</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:#231F20">。</span></i><i style="mso-bidi-font-style:normal"><span style="font-size:10.5pt;font-family:
"Arial","sans-serif""><o:p></o:p></span></i></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">通信和仪器仪表</span><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;font-family:"Arial","sans-serif";color:#006FB9">LO</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></h1>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">除了很宽的频率覆盖范围、行业领先的相位噪声和极快的锁定时间之外，</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">还具有其他特性，因此非常适合无线和仪器仪表应用。在这些应用中，</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">一般作为本地振荡器使用。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">24</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">位小数分辨率相当不错，与</span><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">的精确频率模式功能配合使用时，有可能实现零</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(0 Hz)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">误差频率生成。将</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">用作本地振荡器时，因为标称输出功率为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">5 dBm</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">，所以可以直接通过</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">RFOUT</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">端口驱动有源混频器，这样无需额外的放大电路，可以节省宝贵的电路板空间。采用单端方式使用时，差分分频器</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(PDIVOUT/NDIVOUT)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">的标称输出功率为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">2 dBm</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">，但是，在窄带应用中，可以通过低损耗巴伦或混合耦合器将差分进行组合，以实现</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">1~2dB</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">输出功率的增加。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;letter-spacing:-.15pt">如今低功耗非常重要，</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";letter-spacing:-.15pt">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;letter-spacing:-.15pt">在低电流模式、禁用输出分频器时，只消耗低于</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";
letter-spacing:-.15pt">700 mW</span><span style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;letter-spacing:-.15pt">的功率，即使在最坏情况（高性能模式，输出分频器设为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";
letter-spacing:-.15pt">128</span><span style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;letter-spacing:-.15pt">分频）下，（）其功耗稍高于</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";letter-spacing:-.15pt">1 W</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;letter-spacing:
-.15pt">。即使在低电流模式下，</span><span style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;font-family:"Arial","sans-serif";letter-spacing:-.15pt">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;letter-spacing:-.15pt">的相位噪声性能在同类产品中也处于领先水平，仅增加</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";
letter-spacing:-.15pt">2 dBc/Hz</span><span style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;letter-spacing:-.15pt">。</span><span style="font-size:10.5pt;font-family:
"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">还具有出色的杂散性能，</span><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">PFD</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">杂散低至</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">-105 dBc</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">，带内未滤波的整数边界杂散标称值为</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">-45 dBc</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">小尺寸</span><span lang="EN-US" style="font-size:10.5pt;
font-family:"Arial","sans-serif";mso-ansi-language:EN-US"><o:p></o:p></span></h1>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">ADF5610 PLL/VCO</span><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">采用</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">7 mm × 7 mm</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">、</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">48</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">引脚基板栅格阵列</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(LGA)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">封装。工作时只需极少的外部去耦，因此可以使用小型解决方案实现出色性能。为实现最佳性能，建议使用优质低压降</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(LDO)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">稳压器，例如</span><a href="https://www.analog.com/en/products/adm7150.html"><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";color:#009BD0;
text-decoration:none;text-underline:none">ADM7150</span></a><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">、</span><a href="https://www.analog.com/en/products/LT3045.html"><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";color:#009BD0;
text-decoration:none;text-underline:none">LT3045</span></a><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">/</span><a href="https://www.analog.com/en/products/LT3042.html"><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";color:#009BD0;
text-decoration:none;text-underline:none">LT3042</span></a><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">或</span><a href="https://www.analog.com/en/products/HMC1060.html"><span style="font-size:
10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";color:#009BD0;
text-decoration:none;text-underline:none">HMC1060</span></a><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">。</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">VCO</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">需要</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">5 V</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">电源，其余的电路则使用</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">3.3 V</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">电轨供电。</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">可以使用</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">ADIsimPLL™</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">进行仿真，以帮助用户设计实现完整的</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">PLL</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">频率合成器所需的适当外部元件电路。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">结论</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></h1>
<p class="MsoBodyText"><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
font-family:"Arial","sans-serif"">ADF5610</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">具备行业领先的频率覆盖范围、出色的相位噪声性能、高输出功率、低功耗和小尺寸，因此能够满足新通信和仪器仪表系统的严苛要求。</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<h1 style="margin-top:12.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:
0cm;margin-bottom:.0001pt"><span style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;color:#006FB9">作者简介</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif""><o:p></o:p></span></h1>
<p class="MsoBodyText"><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;font-family:"Arial","sans-serif";mso-ansi-language:EN-US">Marty Richardson</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;
mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">于</span><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;font-family:"Arial","sans-serif";mso-ansi-language:EN-US">2014</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">年加入</span><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";
mso-ansi-language:EN-US">ADI</span><span style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial;mso-ansi-language:EN-US">，</span><span style="font-size:10.5pt;
mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;mso-bidi-font-family:Arial">担任微波频率生成部的高级应用工程师。他在射频</span><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif";
mso-ansi-language:EN-US">/</span><span style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family:
Arial">微波领域工作已超过</span><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
9.0pt;font-family:"Arial","sans-serif";mso-ansi-language:EN-US">35</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">年</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;mso-ansi-language:EN-US">，</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">之前曾从事设计和可靠性技术方面的工作。目前，他主要负责锁相环</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(PLL)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">、压控振荡器</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">(VCO)</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">和倍频器产品。他是</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;font-family:"Arial","sans-serif"">IEEE</span><span style="font-size:10.5pt;mso-bidi-font-size:9.0pt;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial">的高级会员，闲暇时陪伴家人，他喜欢修整家园、打猎、钓鱼和骑山地自行车</span></p>