CS4398-CZZR Cirrus Logic Inc, CS4398-CZZR Datasheet - Page 16

• Manufacturer Part Number: CS4398-CZZR
• Description: IC,D/A CONVERTER,DUAL,24-BIT,TSSOP,28PIN
• Manufacturer: Cirrus Logic Inc

16
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI
(Inputs: Logic 0 = GND, Logic 1 = VLC, C
CCLK Clock Frequency
RST Rising Edge to CS Falling
CCLK Edge to CS Falling
CS High Time Between Transmissions
CS Falling to CCLK Edge
CCLK Low Time
CCLK High Time
CDIN to CCLK Rising Setup Time
CCLK Rising to DATA Hold Time
Rise Time of CCLK and CDIN
Fall Time of CCLK and CDIN
Transition time from CCLK to CDOUT valid
Time from CS rising to CDOUT high-Z
11. t
12. Data must be held for sufficient time to bridge the transition time of CCLK.
13. For F
14. CDOUT should not be sampled during this time period.
15. This time is by design and not tested.
spi
only needed before first falling edge of CS after RST rising edge. t
SCK
< 1 MHz.
C D O U T
C C L K
C D IN
R S T
C S
Parameter
Figure 9. Control Port Timing - SPI Format (Read/Write)
t srs
t sp i
t r2
t css
L
= 20 pF)
t
t scl
scdov
t f2
t dsu
(Note 12)
(Note 13)
(Note 13)
(Note 14)
(Note 15)
(Note 11)
t sch
t dh
t
scdo v
Symbol
t
t
scdov
cscdo
f
t
t
t
t
t
t
t
sclk
t
csh
sch
dsu
t
t
srs
css
spi
scl
dh
r2
f2
t cscd o
spi
t csh
= 0 at all other times.
Min
500
500
1.0
20
66
66
40
15
-
-
-
-
-
H i-Im pedance
™
FORMAT
Max
100
100
40
20
6
-
-
-
-
-
-
-
-
CS4398
DS568F1
MHz
Unit
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns