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Longer record time in Loophole?

Started by fafer88, April 27, 2013, 05:11:53 PM

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fafer88

Hi everyone,

I've got one question about Loophole. In my country is impossible to buy ISD1020,
so I started searching on ebay & I found ISD2560 - similar price but 3 times longer record.
I compare datasheets & I think is possible to use it in Loophole, but in electronic I'm  rookie.
So here is my question, is it possible to use ISD2560 in Loophole?
In attachment I send You modified schematic&layout could You check it?












best regards

fafer88

DutchMF

This might help:

http://www.madbeanpedals.com/forum/index.php?topic=2184.0

No definitive answer, but at least it has a source for the ISD1020

Paul
"If you can't stand the heat, stay away from the soldering iron!"

the3secondrule

It can be done. I'm running the GGG mobius trip looper with an ISD2590 for 90 seconds loop time, and i've used the same chip for a loophole too

according to my notes (i'm not gonna crack the mobius open right now):

"ISD25xx connect pins 7 and 8 to ground."

that's it.  ;D

Jeremy
"I have many leatherbound books, and my apartment smells of rich mahogany"

fafer88

Quote from: the3secondrule on April 28, 2013, 10:12:28 AM
It can be done. I'm running the GGG mobius trip looper with an ISD2590 for 90 seconds loop time, and i've used the same chip for a loophole too

according to my notes (i'm not gonna crack the mobius open right now):

"ISD25xx connect pins 7 and 8 to ground."

that's it.  ;D

Jeremy

thanks Jeremy, it's exactly like I thought  :)

Peteyboy

Quote from: the3secondrule on April 28, 2013, 10:12:28 AM

"ISD25xx connect pins 7 and 8 to ground."

that's it.  ;D

Jeremy

Yep,
I currently finishing up my loophole,
and I used a ISD2560 with grounded pins 7 and 8.
Works just fine.

madbean

The 2560 looks like it will be a good option for the LoopholeII (as well as work in Loophole1). The record/playback functions are simplified somewhat.

There's also the 2590 and 25120, but the sampling frequency on those are extremely low.

the3secondrule

Hmmmm. I found the isd2590 actually sounded a lot cleaner than the 1020 in my builds. None if the repetitive clicks/pops, and a lot less hiss. Ymmv though  ;)


J
"I have many leatherbound books, and my apartment smells of rich mahogany"