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Volumes ! The Chinese IC manufacturers won't bother with anything less than millions/year.
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Todd Sines <sines_list@scale.la><br>
<b>Sent:</b> 14 June 2023 04:48<br>
<b>To:</b> synth-diy@synth-diy.org <synth-diy@synth-diy.org><br>
<b>Cc:</b> Mike Bryant <mbryant@futurehorizons.com><br>
<b>Subject:</b> Re: [sdiy] Another LM13700?</font>
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<div style="line-break:after-white-space">Then what’s keeping someone from doing the Reticon SAD1024/4096? :)
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<div>Todd<br>
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<div>On Jun 13, 2023, at 10:16 PM, Mike Bryant <mbryant@futurehorizons.com> wrote:</div>
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I've used that company's 5532 and it was fine - met all the specs of the original. As Neil said they are probably just absolute copies of one version or another. There's a company in Singapore which will take any chip and strip away the layers so as to produce
an exact set of masks (and a schematic);</div>
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<font face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b><span class="x_Apple-converted-space"> </span>Synth-diy <synth-diy-bounces@synth-diy.org> on behalf of Mike Beauchamp <list@mikebeauchamp.com><br>
<b>Sent:</b><span class="x_Apple-converted-space"> </span>13 June 2023 23:13<br>
<b>To:</b><span class="x_Apple-converted-space"> </span>synth-diy@synth-diy.org <synth-diy@synth-diy.org><br>
<b>Subject:</b><span class="x_Apple-converted-space"> </span>[sdiy] Another LM13700?</font>
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<div class="x_PlainText">Just came across this today:<br>
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<a href="https://www.lcsc.com/product-detail/Operational-Amplifier_HGSEMI-LM13700M-TR_C5160094.html">https://www.lcsc.com/product-detail/Operational-Amplifier_HGSEMI-LM13700M-TR_C5160094.html</a><br>
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No clue what the deal is with them, and the price isn't much better than<span class="x_Apple-converted-space"> </span><br>
ordering direct from TI. But could this be another actual manufacturer<span class="x_Apple-converted-space"> </span><br>
of this chip? Might be nice for those like me that love and rely on this<span class="x_Apple-converted-space"> </span><br>
part #.<br>
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Mike<br>
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