CS5571-ISZ(2007) 데이터 시트보기 (PDF) - Cirrus Logic

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CS5571-ISZ
(Rev.:2007)

±2.5 V / 5 V, 100 kSps, 16-bit, High-throughput ∆Σ ADC

Cirrus Logic 

6/25/07

14:12

CS5571

introduce distortion components unless there is an appropriate amount of dither present. DITHER in the

CS5571 can be set to ON for AC signal measurement or for averaging DC signals. DITHER can be set to

OFF for improved resolution when performing a single conversion on a DC signal.

3.10 Digital Filter Characteristics

The digital filter is designed for fast settling, therefore it exhibits very little in-band attenuation. The filter

attenuation is 1.040 dB at 50 kHz when sampling at 100 kSps.

0.00

-0.25

-0.0414 dB

-0.1660 dB

fs = 100 kSps

-0.50

-0.3740 dB

-0.75

-0.6660 dB

-1.00

-1.25

-1.040 dB

-1.50

0

10k

20k

30k

40k

50k

Frequency (Hz)

Figure 12. CS5571 Spectral Response (DC to fs/2)

0.00

-0.001650 dB

-0.01

-0.00700 dB

fs = 100 kSps

-0.02

-0.01490 dB

-0.03

-0.02643 dB

-0.04

-0.04140 dB

-0.05

0

2k

4k

6k

8k

10k

Frequency (Hz)

Figure 13. CS5571 Spectral Response (DC to 10 kHz)

0

-20

fs = 100 kSps

-40

-60

-80

-100

-120

0

100k

200k

300k

400k

Frequency (Hz)

Figure 14. CS5571 Spectral Response (DC to 4fs)

22

DS768A5

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