Cirrus Logic CS42L56 - Manual (Page 17)

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 -
- Fs
Fs
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
-
- Hz
Hz
Frequency Response - - 0.15 dB
Phase Deviation @ 20 Hz - 5.3 - Deg
Filter Settling Time (Note 13) - 10 5 /Fs - s