[sdiy] More new Alfa chips - CEM3394

ggg at fgi.lv ggg at fgi.lv
Thu Apr 25 16:22:07 CEST 2019


Hi!
I asked them to do so 😉

Girts

-----Original Message-----
From: Robby Mai <72.6d.61 at gmail.com> 
Sent: ceturtdiena, 2019. gada 25. aprīlis 13:15
To: Neil Johnson <neil.johnson71 at gmail.com>
Cc: ggg at fgi.lv; *SYNTH DIY <synth-diy at synth-diy.org>
Subject: Re: [sdiy] More new Alfa chips - CEM3394

Hi all,

anyone an idea if there is a AS3394E presoldered at a breakout PCB to get this thing into my 2,54mm world?
Or is there a plan by Alfa Rpar to make a DIP version of AS3394E?

Kindly Robby.

Am Di., 9. Apr. 2019 um 23:22 Uhr schrieb Neil Johnson
<neil.johnson71 at gmail.com>:
>
> Hiya Girts,
>
> Thanks for the links!
>
> All the best,
> Neil
>
> On Tue, 9 Apr 2019 at 10:22, <ggg at fgi.lv> wrote:
> >
> > Dear colleagues, here you go!
> >
> >
> >
> > https://www.ericasynths.lv/shop/diy/diy-accessories/as3372e-signal-p
> > rocessor-vc-mixer-vcf-vca/
> >
> >
> >
> > https://www.ericasynths.lv/shop/diy/diy-accessories/as3394e-synthesi
> > zer-voice/
> >
> >
> >
> > Best regards,
> >
> >
> >
> > Girts, Erica Synths
> >
> >
> >
> >
> >
> > From: Synth-diy <synth-diy-bounces at synth-diy.org> On Behalf Of 
> > Walker Shurlds
> > Sent: svētdiena, 2019. gada 7. aprīlis 03:28
> > To: *SYNTH DIY <synth-diy at synth-diy.org>; Michael Zacherl 
> > <sdiy-mz01 at blauwurf.info>
> > Subject: Re: [sdiy] More new Alfa chips - CEM3394
> >
> >
> >
> > Unless I’m missing something there isn’t even enough information... that’s 1% typical, 3% max for ... what? 1V 1kHz? 100mV 500Hz? And shouldn’t the distortion vary by the control voltage?
> >
> >
> > ~Walker
> >
> > On Apr 6, 2019, 19:06 -0500, Michael Zacherl <sdiy-mz01 at blauwurf.info>, wrote:
> >
> >
> >
> >
> >
> > On 6 Apr 2019, at 20:21, David G Dixon <dixon at mail.ubc.ca> wrote:
> >
> > Oops, nevermind! I didn't see the crummy distortion specs before 
> > sending my message. I guess it is too good to be true.
> >
> >
> >
> > there’s hope that actual figures might be better and this numbers are honest conservative specs.
> > not sure, if that’s likely.
> > m.
> >
> >
> > -----Original Message-----
> > From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf 
> > Of David G Dixon
> > Sent: Saturday, April 06, 2019 10:58 AM
> > To: 'Tom Wiltshire'; 'Tom Bugs'
> > Cc: '*SYNTH DIY'
> > Subject: Re: [sdiy] More new Alfa chips - CEM3394
> >
> > Tom said:
> >
> > **AS3364: This is a linear-control version of the AS2164 Given the 
> > number of times the Gallo-Irwin circuit gets used to make a linear 
> > VCA out of the 2164, this is an excellent idea. Now you get four of 
> > them on one chip (instead of two linearised VCAs per 2164) without 
> > needing the extra op-amps. Fantastic idea. Having the option of 
> > linear or log control by choosing the chip you need is great.**
> >
> > I'm excited about this. I just wonder a) how well it shuts off at 0V 
> > CV, and b) whether it gets noticeably warm when all the VCAs are off 
> > (which the Irwin circuits will do if you don't add a current limiting resistor).
> >
> >
> >
> >
> > _______________________________________________
> > Synth-diy mailing list
> > Synth-diy at synth-diy.org
> > http://synth-diy.org/mailman/listinfo/synth-diy
> >
> > _______________________________________________
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>
>
>
> --
> http://www.njohnson.co.uk
>
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