CS4397
SWITCHING CHARACTERISTICS (T = -10 to 70°C; Logic 0 = AGND = DGND; Logic
A
1 = VD = 5.25 to 3.0 Volts; C = 20 pF)
L
Parameter
Symbol
Min
Typ
Max
Unit
Input Sample Rate
(Single-speed mode)
(Double-speed mode)
(Quad-speed mode)
Fs
Fs
Fs
16
50
100
-
-
-
50
100
200
kHz
kHz
kHz
LRCK Duty Cycle
MCLK Frequency
45
50
55
%
(Single-speed 256 Fs,
4.096
-
12.8
MHz
Double speed 128 Fs or Quad-speed 64 Fs)
MCLK Frequency
(Single-speed 384 Fs,
Double speed 192 Fs or Quad-speed, 96 Fs
6.144
8.192
-
-
19.2
25.6
MHz
MHz
MCLK Frequency
(Single-speed 512 Fs,
Double speed 256 Fs or Quad-speed, 128 Fs
MCLK Frequency
(Single-speed 768 Fs,
12.288
40
-
38.4
60
MHz
%
Double speed 384 Fs or Quad-speed, 192 Fs
MCLK Duty Cycle
50
SCLK Frequency
(Single-speed mode)
(Double-speed mode)
(Quad-speed mode)
-
-
-
-
-
-
256×Fs
128×Fs
64×Fs
Hz
Hz
Hz
SCLK rising to LRCK edge delay
SCLK rising to LRCK edge setup time
SDATA valid to SCLK rising setup time
SCLK rising to SDATA hold time
t
20
20
20
20
-
-
-
-
-
-
-
-
ns
ns
ns
ns
slrd
t
slrs
t
sdlrs
t
sdh
LRCK
t
slrs
t
slrd
SCLK
t
t
sdh
sdlrs
SDATA
Figure 1. Serial Audio Input Timing
10
DS333F1
CIRRUS [ CIRRUS LOGIC ]
