CS4397
SWITCHING CHARACTERISTICS - CONTROL PORT
(T = 25 °C; VD = 5.25 V to 3.0 Volts; Inputs: logic 0 = AGND, logic 1 = VD, C = 30 pF)
A
L
Parameter
Symbol
Min
Max
Unit
2
®
I C Mode
SCL Clock Frequency
f
-
100
KHz
ns
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
scl
RST Rising Edge to Start
t
500
4.7
4.0
4.7
4.0
4.7
0
-
irs
Bus Free Time Between Transmissions
Start Condition Hold Time (prior to first clock pulse)
Clock Low time
t
-
buf
t
-
hdst
t
-
low
Clock High Time
t
-
high
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
t
-
sust
(Note 11)
t
-
hdd
t
250
-
-
1
sud
t
r
t
-
300
-
f
t
4.7
susp
Notes: 11. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
RST
t
irs
Repeated
Stop
Start
Stop
Start
SDA
SCL
t
t
t
t
t
buf
t
high
hdst
f
susp
hdst
t
t
t
t
sust
t
sud
r
low
hdd
2
Figure 4. I C Control Port Timing
DS333F1
13
CIRRUS [ CIRRUS LOGIC ]
