Bucket brigade

[gagir]

I have finaly found a possible use for those neat chips but they seem to
have been discontinued by Panasonic. I could not find an equivalent.

Does anybody know of any other manufacturer of swiched capacitor delay
lines?

Thank you,

Eric Girard

 

[gagir]

I would need up to 50ms delay.

Eric Girard

 

[Jacobe Hazzard]

I would need up to 50ms delay.

Eric Girard

I think they were discontinued because the same thing can be acheived more
economically with single chip digital solutions.

 

[Garrett Mace]

I would need up to 50ms delay.

If you really run out of options and this is something that cannot be done
digitally for whatever reason, I have heard of linear CCDs being used for
this purpose.

 

[GPG]

lok at www.web-ee.com/electronicprojects/data/mn3004.pdf Similar chips
Also RS data sheets

 

[gagir]

This is a very creative idea. Thank you.

I can do without these parts and do it with ac PC.

They used to have 4096 taps brigades, that is quite a linear CCD

Eric Girard

 

[james]

I have finaly found a possible use for those neat chips but they seem to
have been discontinued by Panasonic. I could not find an equivalent.

Does anybody know of any other manufacturer of swiched capacitor delay
lines?

Thank you,

Eric Girard

what about a string of CD4031's running off a common clock? I've done
very basic delay lines in the past with this method. TI make the
devices BTW.

James

 

[gagir]

Thanks James, but my application is analog.

I want to control the phase of a 10Hz sinus clock when using a AD630 in
lock-in mode. I have not experimented with this part yet (samples due
tomorrow) but I expect the electromechanical and detection systems phase
delay would require compensation. Maybe it would work with a square wave
derived from my control sinus.

Else I would probably go with an allpass filter.

Perhaps someone can tell me if this would have worked using a bucket
brigade?

Regards,

Eric Girard