WM8741
Product Preview
DSD PLUS MODE FILTER CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DSD Plus Filter Response 1
Passband
0.020423 dB
22.48
kHz
dB
0.020423
Passband Ripple
Stopband
127.69
-38.51
kHz
dB
Stopband Attenuation
Filter Cut-off
-3dB point
58.91
71
kHz
fs
Group Delay
DSD Plus Filter Response 2
0.011308dB
23.04
kHz
dB
Passband
0.011308
Passband Ripple
Stopband
120.41
-44.52
kHz
dB
Stopband Attenuation
Filter Cut-off
-3dB point
49.83
127
kHz
fs
Group Delay
DSD Plus Filter Response 3
0.004140 dB
20.24
kHz
dB
Passband
0.004140
Passband Ripple
Stopband
70.03
kHz
dB
-48.05
Stopband Attenuation
Filter Cut-off
-3dB point
49.78
127
kHz
fs
Group Delay
DSD Plus Filter Response 4
0.019762 dB
27.35
kHz
dB
Passband
0.019762
Passband Ripple
Stopband
70.14
kHz
dB
-26.28
Stopband Attenuation
Filter Cut-off
-3dB point
49.74
46
kHz
fs
Group Delay
Table 65 DSD Plus Filter Characteristics
DSD DIRECT MODE FILTER CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DSD Direct Filter (Low Gain Mode)
0.006714 dB
20.07
kHz
dB
Passband
0.006714
Passband Ripple
Stopband
116.45
-13.82
kHz
dB
Stopband Attenuation
Filter Cut-off
-3dB point
83.72
9
kHz
fs
Group Delay
Table 66 DSD Direct Filter Characteristics
PP Rev 1.3 October 2007
52
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
