cs4222 Cirrus Logic, Inc., cs4222 Datasheet - Page 9

• Manufacturer Part Number: cs4222
• Description: 20-bit Stereo Codec With Volume Control
• Manufacturer: Cirrus Logic, Inc.

SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE
DS236F1
RST Low Time
MCLK Frequency
MCLK Pulse Width High
MCLK Pulse Width Low
Input Sample Rate
SCLK Frequency
SCLK Pulse Width Low
SCLK Pulse Width High
SCLK rising to LRCK edge delay
SCLK rising to LRCK edge setup time
SDIN valid to SCLK rising setup time
SCLK rising to SDIN hold time
SCLK falling to SDOUT valid
SDOUT
*SCLK shown for DSCK = 0, SCLK inverted for DSCK = 1.
SCLK*
LRCK
SDIN
Parameters
t
Figure 1. Serial Audio Interface Timing
lrckd
t
lrpd
t
lrcks
MCLK = 512 Fs
MCLK = 384 Fs
MCLK = 256 Fs
MCLK = 512 Fs
MCLK = 384 Fs
MCLK = 256 Fs
t
ds
(DSCK = 0)
(DSCK = 0)
(DSCK = 0)
(DSCK = 0)
(DSCK = 0)
MSB
t
sckh
t
dh
Symbol
t
t
t
t
t
t
sckh
lrckd
lrcks
sckw
Fs
sckl
t
t
dpd
ds
dh
t
sckl
t dpd
MSB-1
1.014
Min
10
10
21
31
10
21
31
40
40
20
40
25
25
4
-
-
--------------------- -
(384) Fs
128xFs
1
Max
25.6
50
-
-
-
-
-
-
-
-
-
-
-
-
-
+
20
CS4222
Units
MHz
kHz
ms
Hz
ns
ns
ns
ns
ns
ns
ns
ns
s
9