[sdiy] [OT] LM13700 spotted in commercial product of big Manufacturer

[mskala at northcoastsynthesis.com]

On Tue, 17 May 2022, mskala at northcoastsynthesis.com wrote:

> I don't think they designed in the DIP version.  The schematic says
> LM13700M, which is the SOIC version and is still officially on "active"

I also note that the schematic is dated 2013, and the same PDF file
contains a picture of the board on which all the ICs and nearly all the
other components appear to be surface-mount.  So the DIP LM13700N would
have been eight years away from discontinuation at the time anyway, even
though they didn't use it, and the SOIC version at least nine years
(assuming they discontinue it this year, which we have no strong reason to
expect).

Steve, the thread starter, has said that he thought it unwise for them to
use the LM13700 *even in SOIC* because the chip is ultimately doomed, but
that decision would have looked better in 2013 than it might today.

-- 
Matthew Skala
North Coast Synthesis Ltd.