WM8766 Wolfson Microelectronics plc, WM8766 Datasheet - Page 31

• Manufacturer Part Number: WM8766
• Description: 24-bit, 192khz 6-channel Dac
• Manufacturer: Wolfson Microelectronics plc

Production Data
DIGITAL FILTER CHARACTERISTICS
Table 17 Digital Filter Characteristics
DAC FILTER RESPONSES
Figure 21 DAC Digital Filter Frequency Response
Figure 23 DAC Digital Filter Frequency Response
w
PARAMETER
Passband
Passband ripple
Stopband
Stopband Attenuation
Group Delay
-100
-120
-20
-40
-60
-80
-20
-40
-60
-80
0
0
0
0
– 192KHz
– 44.1, 48 and 96KHz
0.5
0.2
1
0.4
Frequency (Fs)
Frequency (Fs)
1.5
TEST CONDITIONS
0.6
f > 0.555fs
2
0.05 dB
-3dB
0.8
2.5
DAC Filter
3
1
0.555fs
MIN
-60
Figure 22 DAC Digital Filter Ripple –44.1, 48 and 96kHz
Figure 24 DAC Digital Filter Ripple – 192kHz
-0.05
-0.15
0.15
0.05
-0.1
-0.2
-0.2
-0.4
-0.6
-0.8
0.2
0.1
0.2
-1
0
0
0
0
0.487fs
0.05
0.05
TYP
21
0.1
0.1
0.15
0.15
0.444fs
MAX
0.05
0.2
0.2
Frequency (Fs)
Frequency (Fs)
0.25
0.25
0.3
0.3
UNIT
dB
dB
fs
0.35
0.35
PD Rev 4.1 July 2005
0.4
0.4
WM8766
0.45
0.45
0.5
0.5
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