CS5321/22
CS5322 FILTER CHARACTERISTICS
(T
A
= (See Note 1); VD+ = 5.0 V; GND = 0 V;
CLKIN = 1.024 MHz; transfer function shown in Figure 3; unless otherwise specified.)
Output Word Rate
f
0
(Hz)
4000
2000
1000
500
250
125
62.5
Passband f1
(Hz)
1500
750
375
187.5
93.8
46.9
23.4
Passband Flatness
R
PB
(dB)
0.2
0.04
0.08
0.1
0.1
0.1
0.1
-3dB Freq. f2 Stopband f3 (Hz)
(Hz)
(Note 22)
1652.5
824.3
411.9
205.9
102.9
51.5
25.7
2000
1000
500
250
125
62.5
31.25
Group Delay
(ms)
7.25
14.5
29
58
116
232
464
Notes: 22. G
SB
= -130 dB for all Output Word Rates.
dB
0
-3
G
SB
-13 0
f1
f2
f3
f
Figure 3. CS5322 Filter Response
Figure 4. CS5322 Digital Filter Passband Ripple
f
0
= 62.5 Hz
Figure 5. CS5322 Digital Filter Passband Ripple
f
0
= 125 Hz
Figure 6. CS5322 Digital Filter Passband Ripple
f
0
= 250 Hz
8
DS454F2