WM8726 Datasheet, PDF (15/20 Pages) Wolfson Microelectronics plc – 24-bit 192kHz Stereo DAC

WM8726
Production Data
DIGITAL FILTER CHARACTERISTICS
PARAMETER
Passband Edge
Passband Ripple
Stopband Attenuation
SYMBOL TEST CONDITIONS
MIN
-3dB
f < 0.444fs
f > 0.555fs
-60
Table 6 Digital Filter Characteristics
DAC FILTER RESPONSES
0.2
0
0.15
-20
0.1
-40
0.05
TYP
0.487fs
MAX
±0.05
UNIT
dB
dB
-60
-80
-100
0
-0.05
-0.1
-0.15
-120
0
0.5
1
1.5
2
2.5
Frequency (Fs)
Figure 9 DAC Digital Filter Frequency Response
-44.1, 48 and 96kHz
0
-0.2
3
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (Fs)
Figure 10 DAC Digital Filter Ripple
-44.1, 48 and 96kHz
0.2
0
-20
-0.2
-40
-0.4
-0.6
-60
-80
0
0.2
0.4
0.6
0.8
1
Frequency (Fs)
Figure 11 DAC Digital Filter Frequency Response -192kHz
-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 12 DAC Digital Filter Ripple -192kHz
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PD Rev 4.1 September 2005
15