AK8825 Datasheet, PDF (26/162 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

(7) I²C Timing
(7-1) Timing 1
SDA
SCL
tBUF ^tHD:STA
tR
tF
tR
tLOW
[AK8825]
tF
tSU:STO
tSU:STA
Fig. 19 I²C Timing 1
parameter
Bus Free Time
Hold Time (Start Condition)
Clock Pulse Low Time
Input Signal Rise Time
Input Signal Fall Time
Setup Time(Start Condition)
Setup Time(Stop Condition)
symbol
min
max
unit
tBUF
1.3
usec
tHD:STA
0.6
usec
tLOW
1.3
usec
tR
300
nsec
tF
300
nsec
tSU:STA
0.6
usec
tSU:STO
0.6
usec
The above I2C Bus related timings are I2C Bus specifications, and they are not the device limits.
For details, refer to I2C Bus Specifications.
(7-2) Timing 2
tHD:DAT
SDA
tHIGH
SCL
tSU:DAT
Fig. 20 I²C Timing 2
parameter
Data Setup Time
Data Hold Time
Clock Pulse High Time
symbol
tSU:DAT
tHD:DAT
tHIGH
min
100 (note1)
0.0
0.6
max
0.9 (note2)
unit
nsec
usec
usec
note 1 : when to use in I2C Bus Standard mode, tSU : DAT > = 250 nsec must be satisfied.
note 2 : when the AK8825 is used on not-extended tLOW Bus (used at tLOW = minimum specification),
this condition must be satisfied.
R/W operation to the register is possible without Clock input to CLKIN-pin.
Rev-E-00
26
2008/03