Cirrus Logic CS4398 - Manual (Page 12)

12 DS568F1
CS4398
SWITCHING CHARACTERISTICS
(Inputs: Logic 0 = GND, Logic 1 = VLS, CL = 20 pF)
Parameters Symbol Min Typ Max Units
Input Sample Rate Single-Speed Mode
Double-Speed Mode
Quad-Speed Mode
Fs
Fs
Fs 30
50
100
-
-
- 54
108
216
kHz
kHz
kHz
MCLK Frequency See Tables 1 & 2 (page 21) for compatible frequencies
MCLK Duty Cycle 40% - 60%
LRCK Duty Cycle 45% 50 55%
SCLK Pulse Width Low t
sclkl
20 - - ns
SCLK Pulse Width High t
sclkh
20 - - ns
SCLK Period Single-Speed Mode
t
sclkw
- - ns
Double-Speed Mode
t
sclkw
- - ns
Quad-Speed Mode
t
sclkw
- - ns
SCLK rising to LRCK edge delay t
slrd
20 - - ns
SCLK rising to LRCK edge setup time t
slrs
20 - - ns
SDATA valid to SCLK rising setup time t
sdlrs
22 - - ns
SCLK rising to SDATA hold time t
sdh
20 - - ns
sclkh
t
slrs
t
slrd
t
sdlrs
t sd h
t
sclkl
t
S D A TA
S C LK
LR C K
Figure 2. Serial Mode Input Timing
1
128
( )Fs
---------------------
1
64
( )Fs
------------------
2
MCLK
-----------------