Delta Sigma DACs


Can a Delta-Sigma DAC translate both DSD and PCM streams to analog?  If so, how does it handle the inherent differences in their coding formats? If not, are there any brands of DAC that accept both formats?
128x128cheeg
Hi Cheeg, no I haven't used an external DAC with the CXU, infact I use it as a DAC for a Virgin Tivo box (HDMI) and my old MacBook (optical) for playing mainly ripped CD's and other files. It does this and plays SACD, DVD Audio and Blu-ray discs pretty darn well. I run it all out analogue bootlaced to a Cambridge CXR120 as I'm a multichannel advocate.
I'm planning on ripping all my discs to files when I can find a simple way of storing and playing it back out, audio and video content.
I'm keen to experience DSD and have some great DSF files ready to go but I'd rather do its right and I'm wary of these hybrid Dac's that claim to to do everything but make the tea. It seems to me that PCM and DSD are different enough to warrant separate DACs....
@angelwars  I send the CXU Digital Coaxial Output to the Benchmark Coaxial Input, then use the RCA outputs from the Benchmark to my preamp. 
That's true -- I don't know why, but the CXU only allows me to send DSD via HDMI, and not by Digital Coax.  If I could take the DSD stream from the HDMI output of the CXU, and convert it to coax, I suppose I could feed that into the Benchmark and see how it sounds (not sure if that's possible; does anyone know?).  It's not a big deal, though, because the CXU's DAC does a nice job on my SACD's, so I can just send the analog output from the CXU to my preamp.