CS4270-CZZR Cirrus Logic Inc, CS4270-CZZR Datasheet - Page 21

• Manufacturer Part Number: CS4270-CZZR
• Description: 24-bit, 192kHz Stereo Codec
• Manufacturer: Cirrus Logic Inc

DS686PP1
SWITCHING CHARACTERISTICS - SPI
(Inputs: logic 0 = DGND, logic 1 = VLC)
SPI Mode
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
20. t
21. Data must be held for sufficient time to bridge the transition time of CCLK.
22. For F
spi
only needed before first falling edge of CS after RST rising edge. t
SCK
< 1 MHz
CCLK
CDIN
RST
CS
Parameter
t srs
t spi
t r2
Figure 13. SPI Control Port Timing
t css
(Note 20)
(Note 21)
(Note 22)
(Note 22)
t scl
t f2
t dsu t
TM
t sch
dh
CONTROL PORT
Symbol
f
t
t
t
t
t
t
t
t
sclk
dsu
csh
css
sch
t
t
srs
spi
scl
dh
r2
f2
Min
500
500
1.0
20
82
82
40
15
-
-
-
spi
t csh
= 0 at all other times.
Max
100
100
6
-
-
-
-
-
-
-
-
CS4270
MHz
Unit
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
21