CS5321-BL(2005) 데이터 시트보기 (PDF) - Cirrus Logic

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CS5321-BL
(Rev.:2005)

24-bit, Variable-bandwidth A/D Converter Chipset

Cirrus Logic 

CS5321/22

CS5322 FILTER CHARACTERISTICS (TA = (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

f0 (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

RPB (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. GSB = -130 dB for all Output Word Rates.

dB

0

-3

G SB

-130

f1 f2 f3

f

Figure 3. CS5322 Filter Response

Figure 4. CS5322 Digital Filter Passband Ripple

f0 = 62.5 Hz

Figure 5. CS5322 Digital Filter Passband Ripple

f0 = 125 Hz

8

Figure 6. CS5322 Digital Filter Passband Ripple

f0 = 250 Hz

DS454F2

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