PCM1794A
www.ti.com.cn
ZHCSEE9B –AUGUST 2004–REVISED DECEMBER 2015
6.7 Typical Characteristics
0
2
0.00002
−50
−100
−150
−200
1
0.00001
0
−1
–0.00001
−2
–0.00002
0.0
0
1
2
3
4
0.1
0.2
0.3
0.4
0.5
Frequency [× f
]
S
Frequency [× f
]
S
Figure 4. Amplitude vs Frequency
Frequency Response, Sharp Rolloff
Figure 5. Amplitude vs Frequency
Pass-Band Ripple, Sharp Rolloff
0
0
−2
−4
−50
−100
−150
−200
−6
−8
−10
−12
−14
−16
−18
−20
0
1
2
3
4
0.0
0.1
0.2
0.3
0.4
]
0.5
0.6
Frequency [× f
]
S
Frequency [× f
S
Figure 6. Amplitude vs Frequency
Frequency Response, Slow Rolloff
Figure 7. Amplitude vs Frequency
Transition Characteristics, Slow Rolloff
0
−2
0.020
15
0.015
10
0.010
5
0.005
−4
0
−6
−5
–0.005
−10
–0.010
−8
−15
–0.015
−
–0.020
−10
0
2
4
6
8
10 12 14 16 18 20
0
2
4
6
8
10 12 14 16 18 20
f – Frequency – kHz
f – Frequency – kHz
fS = 44.1 kHz
fS = 44.1 kHz
Figure 9. De-Emphasis Error vs Frequency
Figure 8. De-Emphasis Level vs Frequency
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