WM8768 Wolfson Microelectronics plc, WM8768 Datasheet - Page 33

• Manufacturer Part Number: WM8768
• Description: 24-bit, 192khz 8-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 – 44.1,
48 and 96kHz
Figure 23 DAC Digital Filter Frequency Response –
192kHz
w
PARAMETER
DAC Filter
Passband
Passband ripple
Stopband
Stopband Attenuation
Group Delay
-100
-120
-20
-40
-60
-80
-20
-40
-60
-80
0
0
0
0
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
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 4.2 July 2005
0.4
0.4
WM8768
0.45
0.45
0.5
0.5
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