Analog Devices ADAU1961 Manual page 17

0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0 0.1
Figure 20. DAC Interpolation Filter, 128× Oversampling, Normalized to f
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0 0.1
Figure 21. DAC Interpolation Filter, 128× Oversampling, Double-Rate Mode,
90
80
70
60
50
40
30
20
10
0
Figure 22. Input Impedance vs. Gain for Analog Inputs
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0.2 0.3 0.4 0.5 0.6 0.7 0.8
f
FREQUENCY (NORMALIZED TO )
S
0.2 0.3 0.4 0.5 0.6 0.7 0.8
f
FREQUENCY (NORMALIZED TO )
S
Normalized to f
S
GAIN (dB)
0.05
0.04
0.03
0.02
0.01
0
−0.01
−0.02
−0.03
−0.04
−0.05
0.9 1.0
Figure 23. DAC Interpolation Filter Pass-Band Ripple, 128× Oversampling,
S
0.20
0.15
0.10
0.05
0
−0.05
−0.10
−0.15
−0.20
0.9 1.0
Figure 24. DAC Interpolation Filter Pass-Band Ripple, 128× Oversampling,
Rev. 0 | Page 17 of 76
0 0.05 0.10 0.15 0.20 0.25 0.30
FREQUENCY (NORMALIZED TO
Normalized to f
S
0 0.05 0.10 0.15 0.20 0.25
FREQUENCY (NORMALIZED TO
Double-Rate Mode, Normalized to f
ADAU1961
0.35 0.40 0.45 0.50
f
)
S
0.30 0.35 0.40
f
)
S
S