User Manual

DS851F2 17

CS42L56

ADC DIGITAL FILTER CHARACTERISTICS

Notes:

11. Response is clock-dependent and will scale with Fs. Note that the response plots (Figures 41 to Note 44

on page 90) have been normalized to Fs and can be denormalized by multiplying the X-axis scale by Fs.

HPF parameters are for Fs = 48 kHz.

12. Characteristics are based on the default setting in register “HPF Control (Address 1Bh)” on page 75.

13. Settling time decreases at higher corner frequency settings.

Parameter (Note 11) Min Typ Max Unit

Frequency Response (20 Hz to 20 kHz) -0.07 - +0.02 dB

Passband to -0.05 dB corner

to -3 dB corner

0.421

0.495

Stopband 0.52 - - Fs

Stopband Attenuation 33 - - dB

Total Group Delay - 4.3/Fs - s

High-Pass Filter Characteristics (48 kHz Fs) (Note 12)

Passband to -3.0 dB corner

to -0.05 dB corner

1.87

17.15

Frequency Response - - 0.15 dB

Phase Deviation @ 20 Hz - 5.3 - Deg

Filter Settling Time (Note 13)

/Fs

-s