SV: [sdiy] New Sample & INFINITE Hold chip!

[Ken Stone]

1) settling time is relatively slow at 11ms per volt. It likes a stable
input for that period.
2) once it calulates its voltage, it then stores it to the EEPROM which is
to the side of the calulator, not between the calculator and the d/a and
output. Still, when the EEPROM fails, more than likely its output will be
routed to the D/A via the calculator anyway, rendering it useless.

Ken


>karl dalen wrote:
>
>>--- Peter Ullrich <synpro at networld.at> skrev:
>>  
>>
>>>Bad news: It has a very small 5-SOT23 package so breadbording is a 
>>>little bit difficult - but possible.
>>>The EEPROM storage is 50000 times minimum...
>>>What happens after that?
>>>    
>>>
>>
>>Your infinite hold times becomes no hold times at all!
>>What a miss, why didnt they use a sram cell instead!
>>
>>Really, i think that chip has minor applications in 
>>analog synths! Bogus expencive stuff, why would i need
>>infinite hold time? Im perfectly happy if it holds 20-30 secs!
>>
>>Give me "one" reason to consider it in a real life application?
>>
>>  
>>
>As a replacement for a preset-trimmer designed to be set infrequently 
>during a calibration proceedure ;)
>
>Certainly no good for a S&H LFO!
>
>Seb
>
>
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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