how can I get DSD signal from my Sony SCD5400 ES

1. There is no such thing as a DSD analog signal. DSD is only digital, so you probably mean an analog signal converted from DSD without an intermediary conversion to PCM.

2. Most AVRs will do the D/A but few will avoid the PCM intermediary.

3. I know of no DACs that will accept HDMI and DSD.

Kal

DSD is generally NOT available on S/PDIF except for modified players.