DS1113F1
107
CS4399
9.1 Digital Filter Response
9.1.14 High-pass Filter and Deemphasis
Figure 9-67. Impulse Response
Figure 9-68. Step Response
Figure 9-69. High-pass Filter for PCM and DSD Paths
Figure 9-70. Deemphasis
0
10
20
30
40
50
60
70
80
90
100
−0.2
0
0.2
0.4
0.6
0.8
1
1.2
Time (
µ
s)
Normalized Amplitude (V)
0
10
20
30
40
50
60
70
80
90
100
−0.2
0
0.2
0.4
0.6
0.8
1
1.2
Time (
µ
s)
Normalized Amplitude (V)
0.00001
0.0001
0.001
0.01
0.1
1
−30
−25
−20
−15
−10
−5
0
Frequency (Normalized to Fs)
Magnitude (dB)
0
0.05 0.1
0.15 0.2
0.25 0.3
0.35 0.4
0.45 0.5
−10
−9
−8
−7
−6
−5
−4
−3
−2
−1
0
Frequency (Normalized to Fs)
Magnitude (dB)