Filter
Top Products
dCS 974 User Manual Manual for Software Version 1.0x
dCS Ltd May 2001
Manual part no: DOC1241121A1
Page 97
Document No: OS-MA-A0124-112.1A1
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
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 36 – DSD output, spot Q Noise for the various Filter options
Integrated Q Noise for DSD Filters
normalised for Full Scale DSD at 0dB
-180.00
-160.00
-140.00
-120.00
-100.00
-80.00
-60.00
-40.00
-20.00
0.00
20.00
1 10 100 1000
Frequency (kHz)
Integrated Q Noise Power (dB)
F1
F2
F3
F4
F5
F6
F7
Figure 37 – DSD Output, integrated Q Noise for the various Filter options