WM8768GEDS/RV View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'WM8768GEDS/RV' PDF : 38 Pages View PDF
Production Data
DIGITAL FILTER CHARACTERISTICS
PARAMETER
DAC Filter
Passband
Passband ripple
Stopband
Stopband Attenuation
Group Delay
TEST CONDITIONS
±0.05 dB
-3dB
f > 0.555fs
Table 17 Digital Filter Characteristics
MIN
0.555fs
-60
TYP
0.487fs
21
MAX
0.444fs
±0.05
WM8768
UNIT
dB
dB
fs
DAC FILTER RESPONSES
0
-20
-40
-60
-80
-100
-120
0
0.5
1
1.5
2
2.5
3
Frequency (Fs)
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
0
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (Fs)
Figure 21 DAC Digital Filter Frequency Response – 44.1,
48 and 96kHz
Figure 22 DAC Digital Filter Ripple –44.1, 48 and 96kHz
0.2
0
0
-20
-0.2
-40
-0.4
-60
-80
0
0.2
0.4
0.6
0.8
1
Frequency (Fs)
-0.6
-0.8
-1
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (Fs)
Figure 23 DAC Digital Filter Frequency Response – Figure 24 DAC Digital filter Ripple – 192kHz
192kHz
w
PD Rev 4.3 July 2010
33
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