Adc digital filter characteristics, Cs5345 adc digital filter characteristics – Cirrus Logic CS5345 User Manual
Page 11
DS658F4
11
CS5345
ADC DIGITAL FILTER CHARACTERISTICS
8.
Filter response is guaranteed by design.
9.
Response shown is for Fs = 48 kHz.
10. Response is clock-dependent and will scale with Fs. Note that the response plots (
to
) are
normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.
Symbol
Min
Typ
Max
Unit
Single-Speed Mode
Passband
(-0.1 dB)
0
-
0.4896
Fs
Passband Ripple
-
-
0.035
dB
Stopband
0.5688
-
-
Fs
Stopband Attenuation
70
-
-
dB
Total Group Delay (Fs = Output Sample Rate)
t
gd
-
12/Fs
-
s
Double-Speed Mode
Passband
(-0.1 dB)
0
-
0.4896
Fs
Passband Ripple
-
-
0.025
dB
Stopband
0.5604
-
-
Fs
Stopband Attenuation
69
-
-
dB
Total Group Delay (Fs = Output Sample Rate)
t
gd
-
9/Fs
-
s
Quad-Speed Mode
Passband
(-0.1 dB)
0
-
0.2604
Fs
Passband Ripple
-
-
0.025
dB
Stopband
0.5000
-
-
Fs
Stopband Attenuation
60
-
-
dB
Total Group Delay (Fs = Output Sample Rate)
t
gd
-
5/Fs
-
s
High-Pass Filter Characteristics
Frequency Response
-3.0 dB
-0.13 dB
-
1
20
-
-
Hz
Hz
Phase Deviation
@ 20 Hz
-
10
-
Deg
Passband Ripple
-
-
0
dB
Filter Settling Time
10
5
/Fs
s