threshold PCR1

bagigios · 13th September 2006, 02:18 PM

Anyone knows something about it?

Schematics, specifications, etc...

thanks

Nelson Pass · 13th September 2006, 11:38 PM

PCR1: repeating an earlier email response:

Yes, that's what it looks like. There were a few built
and floated around, and the circuits used massively parallel
stages to do the job, but the parts consumption was enormous
and we didn't consider it practical enough to commit to market.

Magura · 14th September 2006, 05:07 PM

Any chance to see a "back o' napkin" of the schematic or just the basic topology?

Magura

Nelson Pass · 14th September 2006, 05:30 PM

Something like 25 parallel gain stages, each using a diff pair
driving a voltage gain device.

Magura · 14th September 2006, 07:10 PM

What was the benefit of that? I can only come up with drawbacks like monster capacitance issues???

Magura

Zen Mod · 14th September 2006, 07:14 PM

Quote:

Originally posted by Magura
What was the benefit of that? I can only come up with drawbacks like monster capacitance issues???

Magura

noise
transconductance
driving capability

anyway-what I know

14th September 2006, 05:07 PM	#3
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	Any chance to see a "back o' napkin" of the schematic or just the basic topology? Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

14th September 2006, 07:10 PM	#5
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	What was the benefit of that? I can only come up with drawbacks like monster capacitance issues??? Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

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13th September 2006, 11:38 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	PCR1: repeating an earlier email response: Yes, that's what it looks like. There were a few built and floated around, and the circuits used massively parallel stages to do the job, but the parts consumption was enormous and we didn't consider it practical enough to commit to market.

14th September 2006, 05:30 PM	#4
Nelson Pass The one and only Join Date: Mar 2001	Something like 25 parallel gain stages, each using a diff pair driving a voltage gain device.

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