CS42L55 Просмотр технического описания (PDF) - Cirrus Logic

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CS42L55

Ultra Low Power, Stereo CODEC w/Class H Headphone Amp

Cirrus Logic 

ADC DIGITAL FILTER CHARACTERISTICS

CS42L55

Parameter (Note 8)

Frequency Response (20 Hz to 20 kHz)

Passband

Stopband

Stopband Attenuation

Total Group Delay

High-Pass Filter Characteristics (48 kHz Fs) (Note 9)

Passband

Passband Ripple

Phase Deviation

Filter Settling Time (Note 10)

@ 20 Hz

to -0.05 dB corner

to -3 dB corner

Min

-0.07

-

-

0.52

33

-

Typ

-

0.421

0.495

-

-

7.6/Fs

Max

+0.02

-

-

-

-

-

Unit

dB

Fs

Fs

Fs

dB

s

to -3.0 dB corner -

to -0.05 dB corner -

-

-

-

1.87

-

Hz

17.15

-

Hz

-

0.15

dB

5.3

-

Deg

105/Fs

-

s

Notes:

8. Response is clock-dependent and will scale with Fs. Note that the response plots (Figures 27 to 30 on

page 70) have been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.

HPF parameters are for Fs = 48 kHz.

9. Characteristics are based on the default setting in register “HPF Control (Address 09h)” on page 47.

10. Settling time decreases at higher corner frequency settings.

DS773F1

13

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