cs4228-ks Cirrus Logic, Inc., cs4228-ks Datasheet - Page 7

• Manufacturer Part Number: cs4228-ks
• Description: 24-bit, Surround Sound Codec
• Manufacturer: Cirrus Logic, Inc.

SWITCHING CHARACTERISTICS
Notes: 8. After powering up the CS4228, RST should be held low until the power supplies and clocks are settled.
DS307PP1
RST Low Time
SCLK Falling Edge to SDOUT Output Valid
LRCK Edge to MSB Valid
SDIN Setup Time Before SCLK Rising Edge
SDIN Hold Time After SCLK Rising Edge
Master Mode
SCLK Falling to LRCK Edge
SCLK Duty Cycle
Slave Mode
SCLK Period
SCLK High Time
SCLK Low Time
SCLK rising to LRCK Edge
LRCK Edge to SCLK Rising
Figure 1. Serial Audio Port Master Mode Timing
SCLK*
(output)
LRCK
(output)
SDOUT
Parameter
t
mslr
(Continued)
(DSCK=0)
(DSCK=0)
(DSCK=0)
(Note 8)
LRCK
(input)
SCLK*
(input)
SDIN1
SDIN2
SDIN3
SDOUT
*SCLK shown for DSCK = 0.
Figure 2. Serial Audio Port Slave Mode Timing
Symbol
SCLK inverted for DSCK = 1.
t
t
t
t
t
t
t
t
sckw
sckh
lrckd
lrcks
mslr
t
t
sckl
dpd
lrpd
ds
dh
t
lrckd
TBD
TBD
TBD
TBD
1
t
lrpd
t
lrcks
t
ds
Typ
+10
50
-
-
-
-
-
-
-
-
-
-
MSB
t
sckh
t
dh
t
sckw
Max
TBD
TBD
TBD
TBD
t
sckl
-
-
-
-
-
-
-
-
t dpd
CS4228
MSB-1
Units
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
7