wm9081 Wolfson Microelectronics plc, wm9081 Datasheet - Page 102
wm9081
Manufacturer Part Number
wm9081
Description
Mono Dac With 2.6w Class Ab/d Speaker Driver, Dynamic Range Controller And Retune Mobile Parametric Equalizer
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM9081.pdf
(109 pages)
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DAC Normal Filter
Passband
Passband Ripple
Stopband
Stopband Attenuation
DAC Sloping Stopband Filter
Passband
Passband Ripple
Stopband 1
Stopband 1 Attenuation
Stopband 2
Stopband 2 Attenuation
Stopband 3
Stopband 3 Attenuation
WM9081
DIGITAL FILTER CHARACTERISTICS
TERMINOLOGY
1.
2.
w
Mode
Normal
Sloping Stopband
4fs Mode
Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)
Pass-band Ripple – any variation of the frequency response in the pass-band region
PARAMETER
DAC FILTER GROUP DELAY
Group Delay
16.5 / fs
18 / fs
TBA
TEST CONDITIONS
F > 0.546 fs
f > 0.546 fs
+/- 0.05dB
+/- 0.03dB
F > 1.4 fs
f > 0.7 fs
0.454 fs
+/- 1dB
0.25 fs
-6dB
-6dB
0.546 fs
0.546 fs
0.25 fs
0.7 fs
1.4 fs
MIN
-50
-60
-85
-55
0
0
0.5 fs
0.5 fs
TYP
0.454 fs
0.454 fs
+/- 0.03
+/- 0.03
0.25 fs
0.7 fs
1.4 fs
MAX
PP, Rev 3.0, April 2009
UNIT
dB
dB
dB
dB
dB
dB
Pre-Production
102
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