Cirrus Logic CS42L42 Manual page 171

9.1.2 Highpass Filter—DAC
0.5
0
−0.5
−1
−1.5
−2
−2.5
−3
−3.5
0 0.2 0.4 0.6
Figure 9-5. DAC HPF Response
9.1.3 ADC, Notch Filter Disabled
0.25
0.2
0.15
0.1
0.05
0
−0.05
−0.1
−0.15
−0.2
−0.25
0 0.05 0.1 0.15
Frequency (Normalised to Fs)
Figure 9-6. Passband—ADC, Notch Disabled
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0 0.1 0.2 0.3
Frequency (Normalised to Fs)
Figure 9-8. Transition Band—ADC, Notch Disabled
DS1083F2
0.8 1 1.2 1.4 1.6 1.8
Normalised to Fs
0.2 0.25 0.3 0.35 0.4 0.45
0.4 0.5 0.6 0.7 0.8 0.9
2
−3
x 10
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0.5
0 0.5
Figure 9-7. Stopband—ADC, Notch Disabled
0
−100
−200
−300
−400
−500
−600
−700
−800
−900
1 0 5
Figure 9-9. Phase Response—ADC, Notch Disabled
9.1 Digital Filter Response
1 1.5 2 2.5
Frequency (Normalised to Fs)
10 15
Frequency (kHz)
CS42L42
3
20 25
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