Building DAC with CS4397 and FETishizator

belgiangenius · 18th May 2010, 03:54 PM

I'm planning on building a DAC based on this.

The one thing that has been wondering is - the CS4397 has a ~ 2.5V output if you grab just one of the differential outputs (i.e., R- and L-). That's already above the 2.0V send to most amps.

What would the gain be of the Fetishizator circuit and what output level should I be aiming for?

belgiangenius · 18th May 2010, 06:15 PM

I attach the FETishizator circuit.

belgiangenius · 19th May 2010, 01:26 PM

Come on guys...at least a few comments before I dive elbow deep into my soldering station.

Will this setup deliver the clean vacuum tube sound it purports to? I realize a voltage divider will be needed at the input to drop the signal a bit and I'm following the modifications detailed in the guide (lampizator web site) for a high level, voltage input.

leo · 19th May 2010, 02:47 PM

Sorry I can't help, I was looking at the FETishizator a while ago but never got chance to try it, if you do try it please let us know what you think

Ciu · 19th May 2010, 10:24 PM

Hello !
I think this output stage was made for a TDA1541 (output current )
R2 100 Ohms is the load
May be you coud try JR Broskie Cathode follower ?

A real (for voltage DAC) Balanced to SE output stage ...Not tested ...

R.C.

18th May 2010, 03:54 PM	#1
belgiangenius diyAudio Member Join Date: Apr 2010	Building DAC with CS4397 and FETishizator I'm planning on building a DAC based on this. The one thing that has been wondering is - the CS4397 has a ~ 2.5V output if you grab just one of the differential outputs (i.e., R- and L-). That's already above the 2.0V send to most amps. What would the gain be of the Fetishizator circuit and what output level should I be aiming for?

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19th May 2010, 01:26 PM	#3
belgiangenius diyAudio Member Join Date: Apr 2010	Come on guys...at least a few comments before I dive elbow deep into my soldering station. Will this setup deliver the clean vacuum tube sound it purports to? I realize a voltage divider will be needed at the input to drop the signal a bit and I'm following the modifications detailed in the guide (lampizator web site) for a high level, voltage input.

19th May 2010, 02:47 PM	#4
leo diyAudio Member Join Date: Jun 2003 Location: notts	Sorry I can't help, I was looking at the FETishizator a while ago but never got chance to try it, if you do try it please let us know what you think

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