ASAHI KASEI
[AK4370]
Parameter
Symbol
min
typ
max
Units
Control Interface Timing (I2C Bus mode): (Note 27)
SCL Clock Frequency
fSCL
tBUF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
400
-
-
-
-
-
-
-
0.3
0.3
-
400
50
kHz
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
pF
ns
Bus Free Time Between Transmissions
Start Condition Hold Time (prior to first clock pulse)
Clock Low Time
1.3
0.6
1.3
0.6
0.6
0
0.1
-
-
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tR
Clock High Time
Setup Time for Repeated Start Condition
SDA Hold Time from SCL Falling (Note 28)
SDA Setup Time from SCL Rising
Rise Time of Both SDA and SCL Lines
Fall Time of Both SDA and SCL Lines
Setup Time for Stop Condition
tF
tSU:STO
Cb
0.6
-
0
Capacitive Load on Bus
Pulse Width of Spike Noise Suppressed by Input Filter
tSP
Power-down & Reset Timing
PDN Pulse Width (Note 29)
tPD
150
-
-
ns
Note 27. I2C is a registered trademark of Philips Semiconductors.
Note 28. Data must be held long enough to bridge the 300ns-transition time of SCL.
Note 29. The AK4370 can be reset by bringing PDN pin = “L” to “H” only upon power up.
MS0595-E-00
2007/03
- 12 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
