BBD Question - How to chain them?

[coxter]

I'm sure you know about the new coolaudio chips. I've bought some, and I dont really have any experience with BBDs
just buying them to learn and experiment with.

I've tried doing a search with the Keyword "BBD" and it only returns 6 results...
So I didnt bother with words like "Chain" or "Delay" LoL

200ms of delay is seriously too little. I was hoping to at least chain 2 to get 400ms.
Can anyone help out a little? Even if its just a link to some article so I can get more insights.

I really hope I can get 800ms out of an analog delay though.

[Dirk_Hendrik]

Refer to the Scott Schwartz AD80 to see how it's done.

[Serge]

or the AD3208 at GGG

there's also an interesting post from Mark in this thread: http://www.diystompboxes.com/smfforum/index.php?topic=55837.0

[coxter]

May I also ask why the need / function of a compander in a delay unit?

[Sir H C]

Increase the dynamic range.

[coxter]

I guess, having a narrow dynamic range is part of the flaws relating to BBD's ?

So far the only delays thats you guys pointed me to that Chains BBD is the AD3208.
I sorta understand how to chain then now.



Let me say it in brief layman's terms. Please correct me if Im wrong, I still struggling actually.

The 3101 driver has 2 clock drivers that drives both BBD's
and then the way to chain them is to connect the out of the first BBD to the in of the next ?
(minus all the intricacies of the filters and stuffs)


Oh this is beginnin to sound like a project thats too deep for me to embark on...
Hopefully My Hero, Mr RG could write a short "Technology of analog delays" soon.