14
DS700PP1
CS53L21
ADC DIGITAL FILTER CHARACTERISTICS
6. Response is clock-dependent and will scale with Fs. Note that the response plots (Figures 23 to 26) 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.
SWITCHING SPECIFICATIONS - SERIAL PORT
(Inputs: Logic 0 = DGND, Logic 1 = VL, SDOUT CLOAD = 15 pF.)
Parameter (Note 6)
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
Phase Deviation
@ 20 Hz
-10-
Deg
Passband Ripple
-
0.17
dB
Filter Settling Time
-105/Fs
0
s
Parameters
Symbol
Min
Max
Units
RESET pin Low Pulse Width
1-
ms
MCLK Frequency
1.024
38.4
MHz
MCLK Duty Cycle
45
55
%
Slave Mode
Input Sample Rate (LRCK)
Quarter-Speed Mode
Half-Speed Mode
Single-Speed Mode
Double-Speed Mode
Fs
4
8
4
50
12.5
25
50
100
kHz
LRCK Duty Cycle
45
55
%
SCLK Frequency
1/tP
-64Fs
Hz
SCLK Duty Cycle
45
55
%
LRCK Setup Time Before SCLK Rising Edge
ts(LK-SK)
40
-
ns
LRCK Edge to SDOUT MSB Output Delay
td(MSB)
-52
ns
SDOUT Setup Time Before SCLK Rising Edge
ts(SDO-SK)
20
-
ns
SDOUT Hold Time After SCLK Rising Edge
th(SK-SDO)
30
-
ns
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