WM8746 Wolfson Microelectronics plc, WM8746 Datasheet - Page 26

• Manufacturer Part Number: WM8746
• Description: 24-bit, 192khz 6-channel Dac With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8746
DIGITAL FILTER CHARACTERISTICS
Table 14 Digital Filter Characteristics
DAC FILTER RESPONSES
Figure 14 DAC Digital Filter Frequency Response
Figure 16 DAC Digital Filter Frequency Response
w
PARAMETER
Passband
Stopband
Passband Ripple
Stopband Attenuation
-100
-120
-20
-40
-60
-80
-20
-40
-60
-80
0
0
0
0
– 44.1, 48 and 96kHz
– 192kHz
0.5
0.2
1
0.4
Frequency (Fs)
Frequency (Fs)
1.5
0.6
SYMBOL
2
0.8
2.5
TEST CONDITIONS
f > 0.555fs
±0.05 dB
3
1
-3dB
Figure 15 DAC Digital Filter Ripple –44.1, 48 and 96kHz
Figure 17 DAC Digital Filter Ripple – 192 kHz
-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
0.05
0.05
0.444fs
MIN
0.1
0.1
0.15
0.15
0.487fs
0.2
0.2
Frequency (Fs)
Frequency (Fs)
TYP
0.25
0.25
0.3
0.3
PD, October 2008, Rev 4.2
±0.05
MAX
0.35
0.35
-60
0.4
0.4
Production Data
0.45
0.45
UNIT
dB
dB
dB
0.5
0.5
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