So I tried it little more and my findings are:
Stream DSD data as PCM (DOP) - plays 176,400Hz - seems OK now - ErrorLog:
13.11.2017 16:38:03 - codec=Dsd,bit stream=2,decode=False,eq=False,dsp=False,resample=0,upmix=0,tempo=0
13.11.2017 16:38:03 - bit stream set=2
13.11.2017 16:38:22 - codec=Dsd,bit stream=2,decode=False,eq=False,dsp=False,resample=0,upmix=0,tempo=0
13.11.2017 16:38:22 - bit stream set=2
Stream raw DSD data - doesn’t work - ErrorLog:
13.11.2017 16:40:00 - codec=Dsd,bit stream=1,decode=False,eq=False,dsp=False,resample=0,upmix=0,tempo=0
13.11.2017 16:40:00 - try set device dsd raw=1
13.11.2017 16:40:00 - bit stream set=1
13.11.2017 16:40:00 - set dsd rate param=True,channels=2
13.11.2017 16:40:03 - codec=Dsd,bit stream=1,decode=False,eq=False,dsp=False,resample=0,upmix=0,tempo=0
13.11.2017 16:40:03 - try set device dsd raw=1
13.11.2017 16:40:03 - bit stream set=1
13.11.2017 16:40:03 - set dsd rate param=True,channels=2