[sdiy] Latvian CEM Synth IC clones

[Mikko Helin]

QFN soldering by using a hot plate?

On Tue, Mar 13, 2018 at 1:20 PM, chris <chris at chrismusic.de> wrote:

> Can QFN be hand-soldered without an oven?
>
> Chris
>
>
>
> On Tue, 13 Mar 2018 11:10:51 +0000 paula at synth.net wrote:
>
> > Tom,
> >
> >   For me it's a size thing. I mean consider, a VCO, VCF, VCA and ADSR in
> > a 4mm squared package?? I mean you've got a synth voice in such a small
> > space. Small space = lower cost and better thermal coupling if you have
> > multiple voices.
> >
> > Paula
> >
> > On 2018-03-13 10:22, Tom Bugs wrote:
> > > Can you expand a bit on that Paula?
> > > I've never really considered them...
> > > Is it mainly a size thing or am I missing something
> > > interesting/important?
> > >
> > >
> > > On 13/03/2018 10:16, paula at synth.net wrote:
> > >> QFNs are awesome.
> > >>
> > >> On 2018-03-13 09:00, Roman Sowa wrote:
> > >>> I've read somewhere that they don't do SOIC for anything greater than
> > >>> 16 pins, but can't remember exact explanation. In general it was in a
> > >>> spirit of "SOIC sucks". In every Alfa QFN chip they say about center
> > >>> pad greatly improving thermal stability.
> > >>>
> > >>> Roman
> > >>>
> > >>> W dniu 2018-03-12 o 22:34, Jay Schwichtenberg pisze:
> > >>>> Wonder why they didn't do the AS3320 as a SOIC. Maybe they didn't
> > >>>> have 18 pin SOIC packages and had QFN packages.
> > >>>>
> > >>>> Jay S.
> > >>>>
> > >>>> *From:*Synth-diy [mailto:synth-diy-bounces at synth-diy.org] *On
> Behalf
> > >>>> Of *cheater00 cheater00
> > >>>> *Sent:* Monday, March 12, 2018 12:27 PM
> > >>>> *To:* synth-diy mailing list
> > >>>> *Subject:* [sdiy] Latvian CEM Synth IC clones
> > >>>>
> > >>>> Of interest
> > >>>>
> > >>>> http://www.alfarzpp.lv/eng/sc/application.php
> > >>>>
> > >>>>
> > >>>>
> > >>>> _______________________________________________
> > >>>> Synth-diy mailing list
> > >>>> Synth-diy at synth-diy.org
> > >>>> http://synth-diy.org/mailman/listinfo/synth-diy
> > >>>>
> > >>> _______________________________________________
> > >>> Synth-diy mailing list
> > >>> Synth-diy at synth-diy.org
> > >>> http://synth-diy.org/mailman/listinfo/synth-diy
> > >> _______________________________________________
> > >> Synth-diy mailing list
> > >> Synth-diy at synth-diy.org
> > >> http://synth-diy.org/mailman/listinfo/synth-diy
> > >
> > > --
> > > BugBrand LTD
> > > UK company No. 07199808
> > > VAT No. GB 988 2629 57
> > > 1 Ninetree Hill
> > > BRISTOL BS1 3SB
> > > United Kingdom
> > > www.bugbrand.co.uk
> > >
> > >
> > > ---
> > > This email has been checked for viruses by AVG.
> > > http://www.avg.com
> > >
> > > _______________________________________________
> > > Synth-diy mailing list
> > > Synth-diy at synth-diy.org
> > > http://synth-diy.org/mailman/listinfo/synth-diy
> > _______________________________________________
> > Synth-diy mailing list
> > Synth-diy at synth-diy.org
> > http://synth-diy.org/mailman/listinfo/synth-diy
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20180313/4f2f2d9d/attachment.htm>