[sdiy] Latvian CEM Synth IC clones

Roman Sowa modular at go2.pl
Tue Mar 13 13:27:08 CET 2018


yes

Roman

W dniu 2018-03-13 o 12:20, chris pisze:
> 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
>>>>>>
>>>>>>
>>>>>>
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