CS42448-CQZR Cirrus Logic Inc, CS42448-CQZR Datasheet - Page 22

• Manufacturer Part Number: CS42448-CQZR
• Description: IC,Soundcard Circuits,CMOS,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

22
SWITCHING SPECIFICATIONS - CONTROL PORT - SPI FORMAT
VLC = 1.8 V - 5.0 V, VLS = VD = 3.3 V, VA = 5.0 V; Inputs: Logic 0 = DGND, Logic 1 = VLC, CDOUT C
Notes:
CCLK Clock Frequency
RST Rising Edge to CS Falling
CS Falling to CCLK Edge
CS High Time Between Transmissions
CCLK Low Time
CCLK High Time
CDIN to CCLK Rising Setup Time
CCLK Rising to DATA Hold Time
CCLK Falling to CDOUT Stable
Rise Time of CDOUT
Fall Time of CDOUT
Rise Time of CCLK and CDIN
Fall Time of CCLK and CDIN
24. Data must be held for sufficient time to bridge the transition time of CCLK.
25. For f
sck
CDOUT
CCLK
CDIN
<1 MHz.
RST
CS
Parameter
t
srs
t
css
Figure 9. Control Port Timing - SPI Format
t
sch
t
pd
t
scl
t
(Note 24)
(Note 25)
(Note 25)
dsu
MSB
MSB
t
dh
t
f2
Symbol
t
t
f
t
t
t
t
t
t
sck
css
csh
sch
dsu
t
t
t
t
srs
scl
dh
pd
r1
r2
f1
f2
t
r2
Min
1.0
20
20
66
66
40
15
0
-
-
-
-
-
t
csh
Max
100
100
6.0
50
25
25
-
-
-
-
-
-
-
CS42448
L
DS648F3
= 30 pF.
Units
MHz
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns