cs4228a Cirrus Logic, Inc., cs4228a Datasheet - Page 8

• Manufacturer Part Number: cs4228a
• Description: 24-bit, 96 Khz Surround Sound Codec
• Manufacturer: Cirrus Logic, Inc.

SWITCHING CHARACTERISTICS
Notes: 14. See Cl1:0 register on page 22 for settings.
8
Audio ADC's and DAC's Sample Rate
MCLK Frequency
MCLK Duty Cycle
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
SCLK Period BRM
SCLK Period HRM
Master Mode
SCLK Falling to LRCK Edge
SCLK Duty Cycle
Slave Mode
SCLK High Time
SCLK Low Time
SCLK rising to LRCK Edge
LRCK Edge to SCLK Rising
15. After powering up the CS4228A, RST should be held low for 1 ms after the power supplies and clocks
16. Scales with sample rate Fs. 50 ns valid at 48 kHz, more time at slower Fs and less time at faster Fs.
17. See DCK1:0 register on page 25 for settings.
are settled.
Parameter
MCLK = 256, 512 Fs
MCLK = 128, 256 Fs
MCLK =128, 384 Fs
MCLK = 64, 192 Fs
(Inputs: Logic 0 = 0V, Logic 1 = VL)
(Note 14)
(Note 15)
(Note 16)
(Note 17)
(Note 17)
HRM
HRM
BRM
BRM
Symbol
t
t
t
t
t
t
t
t
t
sckh
lrckd
lrcks
mslr
Fs
t
t
sckl
dpd
lrpd
sck
sck
dh
ds
--------------------- -
(
------------------
(
128
64
3.84
Min
30
60
40
40
40
40
50
50
25
25
1
1
1
)Fs
)Fs
Typ
+10
50
50
50
50
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
25.6
100
CS4228A
50
60
60
60
60
50
20
10
30
-
-
-
-
-
-
-
-
-
Units
MHz
kHz
kHz
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
%