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Adc digital filter characteristics, Note 5), Note 6) – Cirrus Logic CS42L51 User Manual

Page 15: Cs42l51

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DS679F1

15

CS42L51

5.

Referred to the typical full-scale voltage. Applies to all THD+N and Dynamic Range values in the table.

6.

Measured between AINxx and AGND.

ADC DIGITAL FILTER CHARACTERISTICS

7.

Response is clock-dependent and will scale with Fs. Note that the response plots (

Figure 33

to

Figure 41

)

have been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs. HPF param-
eters are for Fs = 48 kHz.

Parameter

(Note 7)

Min

Typ

Max

Unit

Passband (Frequency Response)

to -0.1 dB corner

0

-

0.4948

Fs

Passband Ripple

-0.09

-

0.17

dB

Stopband

0.6

-

-

Fs

Stopband Attenuation

33

-

-

dB

Total Group Delay

-

7.6/Fs

-

s

High-Pass Filter Characteristics (48 kHz Fs)

Frequency Response

-3.0 dB
-0.13 dB

-
-

3.7

24.2

-
-

Hz
Hz

Phase Deviation

@ 20 Hz

-

10

-

Deg

Passband Ripple

-

-

0.17

dB

Filter Settling Time

-

10

5

/Fs

0

s