<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV><BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">- Aaron, who is spending the first 1/2 (at least) of his synth design course focusing entirely on analog circuits</DIV></BLOCKQUOTE><DIV><BR class="khtml-block-placeholder"></DIV>From <A href="http://dictionary.reference.com/search?q=analogue">http://dictionary.reference.com/search?q=analogue</A><BR><BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV></BLOCKQUOTE><BR></DIV><P style="margin: 0.0px 0.0px 16.0px 0.0px"><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"><B>analogue</B></SPAN></FONT></P><P style="margin: 0.0px 0.0px 16.0px 0.0px"><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"><BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"><BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> <electronics> (US: "analog") A description of a continuously<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> variable signal or a circuit or device designed to handle such<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> signals. The opposite is "discrete" or "</SPAN></FONT><A href="http://dictionary.reference.com/search?q=digital"><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"><FONT class="Apple-style-span" color="#0037FF">digital</FONT></SPAN></FONT></A><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;">".<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"><BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> Analogue circuits are much harder to design and analyse than<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> digital ones because the designer must take into account<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> effects such as the gain, linearity and power handling of<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> components, the resistance, capacitance and inductance of PCB<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> tracks, wires and connectors, interference between signals,<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> power supply stability and more. A digital circuit design,<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> especially for high switching speeds, must also take these<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> factors into account if it is to work reliably, but they are<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> usually less critical because most digital components will<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> function correctly within a range of parameters whereas such<BR></SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="4"><SPAN class="Apple-style-span" style="font-size: 16px;"> variations will corrupt the outputs of an analogue circuit.</SPAN></FONT></P></BODY></HTML>