Almost from the beginning, Behringer had sourced VCA's and RMS detectors made by different foundries than those used by THAT, and even before, TASCAM had done the same; these chips were made under license, but were not supposed to be available to the public. Indeed, knowing the proverbial observance of agreements of Chinese subcontractors at the time, these chips soon flooded the (semi) open market.Cardinen said:Hi all,
Does anyone have experience with these ICs ? I never used one but i saw many times, they are pretty cheap compared to THAT;
I need some 2181, Coolaudio V2181 seem a good choice, anyone has ever tried it?
thanks
gyraf said:Thanks for the background scan, BenB - I was wondering why I hadn't heard of them before (after all, pro audio silicon is a pretty small business)
Does anyone know if they have genuine wafer production, or if they just buy finished silicon and package..? All the hype on their page seems to point towards them wishing they had..
arnyk said:
(..) This makes anything they they sell somewhat mystery meat, unless you choose to just trust them
I'm shocked...(not) I've had finished goods copied, and seen many similar examples.Rochey said:those f*ckers knocked off one of my TI chips, and copied the datasheet almost word for word.
I'm not bitter.
/R
This only adds to my strong suspicion that the company has never actually designed any new part, it only "second sources" (whether it's authorized to do so or not, and generally it looks like not) other parts.JohnRoberts said:Cool audio has knocked off many iconic ICs.
Some companies start out copying other people's work but if successful eventually run out of items to copy. Also along the way they may absorb smaller company's technology. It is not unheard of for a serial copier to do something novel, while I wouldn't expect much from a culture that doesn't respect creativity.benb said:This only adds to my strong suspicion that the company has never actually designed any new part, it only "second sources" (whether it's authorized to do so or not, and generally it looks like not) other parts.
Earlier I mentioned the "distributors" that sell Cool Audio parts, I think a better name for them is retailers.
That is weird. The 2162/64 is a close derivative of the 2150 family; the main cause for output offset is actually due to the input offset, that's why the input signal must be either DC decoupled with a capacitor, or receive offset adjustment.saint gillis said:the real problem I had with those chips was that the output signal had several volts of DC offset
Have you used the circuit how it is intended, i.e. with an opamp I-V converter at the output?saint gillis said:So i'll test them again, my input signal was clean IIRC
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