Switching specifications - serial audio interface, Figure 17. serial input timing, Cs4340a – Cirrus Logic CS4340A User Manual
Page 17
CS4340A
DS590F2
17
SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE
Notes: 6. Speed mode is detected automatically, based on the input sample rate.
7. Only required for Quad-Speed Mode.
Parameters
Symbol Min
Max
Units
MCLK Frequency
1.024
38.4
MHz
MCLK Duty Cycle
45
55
%
Input Sample Rate
Single-Speed Mode
(Note 6)
Double-Speed Mode
Quad-Speed Mode
Fs
Fs
Fs
4
84
170
50
100
200
kHz
kHz
kHz
LRCK Duty Cycle
40
60
%
SCLK Frequency
Single-Speed Mode
Double-Speed Mode
-
-
128xFs
64xFs
Hz
Hz
Quad-Speed Mode
-
Hz
SCLK Pulse Width Low
t
sclkl
20
-
ns
SCLK Pulse Width High
t
sclkh
20
-
ns
SCLK rising to LRCK edge delay
t
slrd
20
-
ns
SCLK rising to LRCK edge setup time
t
slrs
20
-
ns
SDIN valid to SCLK rising setup time
t
sdlrs
20
-
ns
SCLK rising to SDIN hold time
t
sdh
20
-
ns
SCLK rising to MCLK edge delay (Note 7)
t
smd
8
-
ns
MCLK
2
------------------
sclkh
t
slrs
t
slrd
t
sdlrs
t
sdh
t
sclkl
t
SDATA
SCLK
LRCK
sm d
t
M CLK
Figure 17. Serial Input Timing