[sdiy] DG switch app notes?

[Scott Nordlund]

The +5 and ground are for the logic level stuff.  The DG211, etc. use TTL-compatible input levels (unlike, say, a 4016 where the logic levels depend on the power supply voltages).  So internally it's got a TTL-compatible input and then a level shifter to drive the MOSFETs that connect the inputs together.  I think you need to hook up all the supply connections regardless of what you're doing with it, selecting + and - voltages depending on the signal levels that will be applied (though I didn't see minimum voltages specified in the datasheet)....

----------------------------------------
> From: subjectivity at hotmail.com
> To: synth-diy at dropmix.xs4all.nl
> Date: Mon, 11 May 2009 19:37:11 +0000
> Subject: [sdiy] DG switch app notes?
>
>
>
> hey there
>
> i finally remembered to get a bunch of DG switches in my latest parts order.
>
> but i am a bit confused as to how to wire up the DG201/202 and dg211.
>
>
> on the 211 there is a PLUS and negative rail AND a 5volt and a grnd.
>
> on the 201/202 there is +/- and grnd
>
> my question is..besides + and grnd when do i need to hook up the negative rail or the +5 in?
>
> i assume that when sending audio through it which has a plus and minus swing, i should connect the grnd, pos and neg.
>
> is this correct?
>
> i couldnt find any application notes for these and obviously they are a little different than 4066's.
>
> thanks!
> --------------------------------------------
> check out various dan music at:
>
> http://www.myspace.com/lossnyc
>
> (updated monthly)
>
> http://www.soundclick.com/lossnyc.htm
>
>
>
> http://www.indie911.com/dan-snazelle
>
> (or for techno) http://www.myspace.com/snazelle
>
> ALSO check out Dan synth/Fx projects:
>
> AUDIO ARK:
>
> www.youtube.com/watch?v=TJRpvaOcUic
>
> www.youtube.com/watch?v=BqIa_lXQNTA&feature=channel_page
>
> www.youtube.com/watch?v=V4nJPjGgOcU&feature=channel_page
>
> and soundtrack/design work:
>
> NEW: check out Dan's sound design from the 1998 award winning film SAFARI by catherine chalmers
>
> http://www.catherinechalmers.com/videos.cfm
>
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy

_________________________________________________________________
Hotmail® has a new way to see what's up with your friends.
http://windowslive.com/Tutorial/Hotmail/WhatsNew?ocid=TXT_TAGLM_WL_HM_Tutorial_WhatsNew1_052009