Cirrus-logic CS5344 Manuel d'utilisateur télécharger pdf (Page 16)

16 DS687F4

CS5343/4

Draft

2/1/11

4.6 Synchronization of Multiple Devices

In systems where multiple ADCs are required, care must be taken to achieve simultaneous sampling. To

ensure synchronous sampling, the MCLK, SCLK, and LRCK signals must be the same for all of the CS5343

and CS5344 devices in the system.

5. FILTER PLOTS - ALL SPEED MODES

Figure 8. Stopband Rejection Figure 9. Transition Band

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Frequency (normalized to Fs)

Amplitude (dB)

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0.40 0.42 0.44 0.46 0.48 0.50 0.52 0.54 0.56 0.58 0.60

Frequency (normalized to Fs)

Amplitude (dB)

Figure 10. Transition Band (Detail) Figure 11. Passband Ripple

-0.10

-0.08

-0.06

-0.04

-0.02

0.00

0.02

0.04

0.06

0.08

0.10

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50

Frequency (normalized to Fs)

Amplitude (dB)

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

0.46 0.47 0.48 0.49 0.50 0.51 0.52

Frequency (normalized to Fs)

Amplitude (dB)

1 2 ... 11 12 13 14 15 16 17 18 19 20 21

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Cirrus-logic CS5344 Manuel d'utilisateur Page 16

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