dCS 904 User Manual

Manual for Software Version 1.5x and 1.36

dCS Ltd

June 2000

 

 

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

Q Noise rel Full Scale DSD (dB)

0

in 400 Hz bandwidth

 

 

F1

-20

F2

 

F3

-40

F4

F5

 

 

F6

-60

F7

 

-120dB in 20 kHz

-80

 

-100

-120

-140

-160

-180

-200

1

10

100

1000

Frequency (kHz)

Figure 12 – DSD Output, Filter Responses (Spot Q Noise)

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