<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1521051572918_22945">Beyond analyzing the datasheet has anyone done an evaluation of the SSI2164 chip?</div><div id="yui_3_16_0_ym19_1_1521051572918_22945"><br></div><div id="yui_3_16_0_ym19_1_1521051572918_22945">Thanks,</div><div id="yui_3_16_0_ym19_1_1521051572918_22945">Mike</div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Wednesday, February 14, 2018 6:15 AM, Mattias Rickardsson <mr@analogue.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv0366160842"><div><div dir="ltr"><div class="yiv0366160842gmail_extra"><div class="yiv0366160842gmail_quote">On 14 February 2018 at 00:59, electronicpresskit <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:electronicpresskit@gmail.com" target="_blank" href="mailto:electronicpresskit@gmail.com">electronicpresskit@gmail.com</a>></span> wrote:<br clear="none"><blockquote class="yiv0366160842gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><span class="yiv0366160842">> On Feb 14, 2018, at 12:25 AM, Neil Johnson <<a rel="nofollow" shape="rect" ymailto="mailto:neil.johnson71@gmail.com" target="_blank" href="mailto:neil.johnson71@gmail.com">neil.johnson71@gmail.com</a>> wrote:<br clear="none">
><br clear="none">>> I saw their CEO claim this in a NAMM video and the datasheet claims it, but<br clear="none">
>> then specs .025% THD which is .005% worse than the ssm2164 and V2164. I also<br clear="none">
>> compared a few of the graphs to see if there was a particular context in<br clear="none">
>> which it was improved but I did not find one.<br clear="none">
>><br clear="none">
>> That has me wondering how it works!<br clear="none">
><br clear="none">
> And you believe the ADI datasheet because.....?<br clear="none">
><br clear="none">
> See if you can make sense of Figure 6 in the ADI datasheet.<br clear="none"><br clear="none"></span>So we’ve got datasheet errors from both manufacturers right?<br clear="none"></blockquote><div><br clear="none"></div><div>All tree manufacturers.</div><div>ADI happened to put a 20-20k axis in their diagram, and Coolaudio just copied all the diagrams including the obvious error... :-)</div><div class="yiv0366160842yqt0271445160" id="yiv0366160842yqtfd99735"><div> </div></div><blockquote class="yiv0366160842gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="yiv0366160842yqt0271445160" id="yiv0366160842yqtfd04199">The reason I asked the question is because I don’t know what to believe.</div><br clear="none"></blockquote><div><br clear="none"></div><div>Understandable. But the THD curves differs a lot from unit to unit, so I wouldn't compare those numbers very much. I'm not even sure how I would choose a number to publish, are there any engineering "rules" for this or is it up to the marketing departments? :-) </div><div>Anyway, the THD statistics I've seen so far from SSI (not in the datasheet) indicate that most SSI chips are indeed performing better in this regard than most SSM and V chips. So far I have found exactly zero reasons to keep using the Coolaudio part.</div><div><br clear="none"></div><div>/mr</div><div class="yiv0366160842yqt0271445160" id="yiv0366160842yqtfd76480"><div><br clear="none"></div></div></div></div></div></div></div><div class="yqt0271445160" id="yqtfd74185">_______________________________________________<br clear="none">Synth-diy mailing list<br clear="none"><a shape="rect" ymailto="mailto:Synth-diy@synth-diy.org" href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a><br clear="none"><a shape="rect" href="http://synth-diy.org/mailman/listinfo/synth-diy" target="_blank">http://synth-diy.org/mailman/listinfo/synth-diy</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>