ꢀ ꢁꢂ ꢃ ꢄ ꢅ ꢆ
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SLES080B – MAY 2003 – REVISED NOVEMBER 2003
TYPICAL PERFORMANCE CURVES
DIGITAL FILTER
Digital Filter Response
AMPLITUDE
AMPLITUDE
vs
vs
FREQUENCY
FREQUENCY
0
−50
2
0.00002
1
0.00001
−100
−150
−200
0
−1
–0.00001
−2
–0.00002
0
1
2
3
4
0.0
0.1
0.2
0.3
0.4
0.5
Frequency[× f ]
Frequency[× f ]
S
S
Figure 1. Frequency Response, Sharp Rolloff
Figure 2. Pass-Band Ripple, Sharp Rolloff
AMPLITUDE
vs
AMPLITUDE
vs
FREQUENCY
FREQUENCY
0
−50
0
−2
−4
−6
−8
−100
−150
−200
−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 ]
Frequency[× f ]
S
S
Figure 3. Frequency Response, Slow Rolloff
Figure 4. Transition Characteristics, Slow Rolloff
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