WM8959
Pre-Production
DIGITAL FILTER CHARACTERISTICS
PARAMETER
DAC Normal Filter
Passband
TEST CONDITIONS
MIN
TYP
MAX
UNIT
+/- 0.03dB
-6dB
0
0.454 fs
+/- 0.03
0.5 fs
Passband Ripple
Stopband
0.454 fs
dB
dB
0.546 fs
-50
Stopband Attenuation
DAC Sloping Stopband Filter
Passband
F > 0.546 fs
+/- 0.03dB
+/- 1dB
-6dB
0
0.25 fs
0.25 fs
0.454 fs
0.5 fs
Passband Ripple
Stopband 1
0.25 fs
+/- 0.03
0.7 fs
dB
dB
dB
dB
0.546 fs
-60
Stopband 1 Attenuation
Stopband 2
f > 0.546 fs
f > 0.7 fs
0.7 fs
-85
1.4 fs
Stopband 2 Attenuation
Stopband 3
1.4 fs
-55
Stopband 3 Attenuation
F > 1.4 fs
DAC FILTERS
MODE
Normal
GROUP DELAY
18 / fs
Sloping Stopband
18 / fs
PP, May 2008, Rev 3.1
148
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