CS4398CZZR View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS4398CZZR' PDF : 46 Pages View PDF
CS4398
SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT
(Inputs: Logic 0 = GND, Logic 1 = VLC, CL = 20 pF)
Parameter
Symbol
Min
Max
Unit
SCL Clock Frequency
fscl
-
100
kHz
RST Rising Edge to Start
tirs
500
Bus Free-Time Between Transmissions
tbuf
4.7
Start Condition Hold Time (prior to first clock pulse)
thdst
4.0
Clock Low Time
tlow
4.7
Clock High Time
thigh
4.0
Setup Time for Repeated Start Condition
tsust
4.7
SDA Hold Time from SCL Falling
(Note 10) thdd
0
SDA Setup Time to SCL Rising
tsud
250
Rise Time of SCL and SDA
trc, trd
-
Fall Time SCL and SDA
tfc, tfd
-
Setup Time for Stop Condition
tsusp
4.7
Acknowledge Delay from SCL Falling
tack
300
-
ns
-
µs
-
µs
-
µs
-
µs
-
µs
-
µs
-
ns
1
µs
300
ns
-
µs
1000
ns
10. Data must be held for sufficient time to bridge the transition time, tfc, of SCL.
RST
t irs
S to p
S ta rt
SDA
SCL
t buf
t hdst
t lo w
t high
R e p e ate d
S ta rt
t rd
t hdst
Stop
t fd
t fc
t susp
t hdd
t sud
tack
t sust
t rc
Figure 8. Control Port Timing - I²C Format
DS568F1
15
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