dac pcm1794 vs cs4397

evert1 · 17th October 2008, 02:00 PM

Hello,

My first post here!

I have a dac with cs4397 and replaced it with a pcm1794.
the signal is now very soft.
does anybody know how many volts AC comes out of the pcm1794
.

Evert

hifimaker · 17th October 2008, 04:09 PM

They are two completely different DAC's with the CS4397 being a voltage out part and the TI1794 as a current out part. The 1794 needs an I/V converter between the chip and the balanced to unbalanced buffer/converter in the schematic. This part puts out tons of current and is an excellent chip and in my personal experience much better sounding than any of the CS chips.

-David

evert1 · 19th October 2008, 02:36 PM

Thank for the fast reply

dus anyone have a good schematic to make this?

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17th October 2008, 04:09 PM	#2
hifimaker diyAudio Member Join Date: Oct 2003 Location: San Jose	They are two completely different DAC's with the CS4397 being a voltage out part and the TI1794 as a current out part. The 1794 needs an I/V converter between the chip and the balanced to unbalanced buffer/converter in the schematic. This part puts out tons of current and is an excellent chip and in my personal experience much better sounding than any of the CS chips. -David

19th October 2008, 02:36 PM	#3
evert1 diyAudio Member Join Date: Oct 2008	Thank for the fast reply dus anyone have a good schematic to make this?