CS4270_06 CIRRUS [Cirrus Logic], CS4270_06 Datasheet - Page 20

• Manufacturer Part Number: CS4270_06
• Description: 24-Bit, 192 kHz Stereo Audio CODEC
• Manufacturer: CIRRUS [Cirrus Logic]

20
SWITCHING CHARACTERISTICS - I²C MODE CONTROL PORT
(Inputs: logic 0 = DGND, logic 1 = VLC)
I²C Mode
SCL Clock Frequency
RST Rising Edge to Start
Bus Free Time Between Transmissions
Start Condition Hold Time (prior to first clock pulse)
Clock Low time
Clock High Time
Setup Time for Repeated Start Condition
SDA Hold Time from SCL Falling
SDA Setup time to SCL Rising
Rise Time of Both SDA and SCL Lines
Fall Time of Both SDA and SCL Lines
Setup Time for Stop Condition
19. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
RST
SDA
SCL
Stop
t irs
t buf
Parameter
Start
t hdst
t
low
Figure 12. I²C Mode Control Port Timing
t
hdd
t high
(Note 19)
t sud
Symbol
t
t
t
t
t
t
Repeated
t
t
susp
f
hdst
high
sust
t
hdd
sud
low
buf
scl
t sust
irs
t
t
r
f
Start
t
hdst
Min
500
250
4.7
4.0
4.7
4.0
4.7
4.7
t r
0
-
-
-
t f
Max
100
300
1
-
-
-
-
-
-
-
-
-
Stop
t susp
CS4270
DS686PP1
Unit
kHz
ns
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs