Switching characteristics - serial audio port, Cs4271 – Cirrus Logic CS4271 User Manual
Page 18
CS4271
18
DS592F1
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT
(Logic "0" = GND = 0 V;
Logic "1" = VL, C
L
= 20 pF)
Notes: 20. In Control Port Mode, the Ratio[1:0] bits must be configured according to tables 8 and 9 on
Parameter
Symbol
Min
Typ
Max
Unit
Sample Rate
Single Speed Mode
Double Speed Mode
Quad Speed Mode
Fs
Fs
Fs
4
50
100
-
-
-
50
100
200
kHz
kHz
kHz
MCLK Specifications
MCLK Frequency
Stand-Alone Mode
(note 20)
Control Port Mode
f
mclk
f
mclk
1.024
1.024
-
-
25.600
51.200
MHz
MHz
MCLK Input Pulse Width High/Low
Stand-Alone Mode
(note 20)
Control Port Mode
t
clkhl
t
clkhl
16
8
-
-
-
-
ns
ns
MCLK Output Duty Cycle
45
50
55
%
Master Mode
LRCK Duty Cycle
-
50
-
%
SCLK Duty Cycle
-
50
-
%
SCLK falling to LRCK edge
t
slr
-10
-
10
ns
SCLK falling to SDOUT valid
t
sdo
0
-
32
ns
SDIN valid to SCLK rising setup time
t
sdis
16
-
-
ns
SCLK rising to SDIN hold time
t
sdih
20
-
-
ns
Slave Mode
LRCK Duty Cycle
40
50
60
%
SCLK Period
(note 20)
Single Speed Mode
Double Speed Mode
Quad Speed Mode
t
sclkw
t
sclkw
t
sclkw
-
-
-
-
-
-
s
s
s
SCLK Pulse Width High
t
sclkh
30
-
-
ns
SCLK Pulse Width Low
t
sclkl
48
-
-
ns
SCLK falling to LRCK edge
t
slr
-10
-
10
ns
SCLK falling to SDOUT valid
t
sdo
0
-
32
ns
SDIN valid to SCLK rising setup time
t
sdis
16
-
-
ns
SCLK rising to SDIN hold time
t
sdih
20
-
-
ns
Crystal Oscillator Specifications (XTI/XTO)
Crystal Frequency Range
f
osc
16.384
-
25.600
MHz
1
128
(
)Fs
---------------------
1
128
(
)Fs
---------------------
1
64
( )Fs
------------------