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dCS 904 User Manual Manual for Software Version 1.5x and 1.36
dCS Ltd June 2000
Manual part no: DOC135904 iss 2B2
Page 34
135904ma2b2.pdf file available from website
Contact
dCS
on + 44 1799 531 999 email to: more@dcsltd.co.uk
(inside the UK replace + 44 with 0) web site: www.dcsltd.co.uk
DSD Format, showing Full Scale Signal
dCS 972 SW v1.54
-1.5
-1
-0.5
0
0.5
1
1.5
0 50 100 150 200 250 300 350 400 450 500
Time (usecs)
Figure 11 – DSD, showing DSD full scale
DSD has only two levels – printer artefacts make it look like more
Spot Q Noise for DSD Filters
in 400 Hz bandwidth
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
1 10 100 1000
Frequency (kHz)
Q Noise rel Full Scale DSD (dB)
F1
F2
F3
F4
F5
F6
F7
-120dB in 20 kHz
Figure 12 – DSD Output, Filter Responses (Spot Q Noise)