AK8857VQ Datasheet, PDF (17/105 Pages) Asahi Kasei Microsystems – Dual Channel Digital Video Decoder

[AK8857VQ]
(7) I²C bus input timing
(DVDD=1.70V~2.00V, PVDD1=DVDD~3.60V, PVDD2=DVDD~3.60V, -40~85˚C)
(7-1) Timing 1
tBUF tHD : STA
tR
tF
tSU : STO
VIH
SDA
VIL
tF
tR
VIH
SCL
VIL
tLOW
tSU : STA
Parameter
Symbol
Min
Max
Bus Free Time
tBUF
1.3
Hold Time (Start Condition)
tHD:STA
0.6
Clock Pulse Low Time
tLOW
1.3
Input Signal Rise Time
tR
300
Input Signal Fall Time
tF
300
Setup Time(Start Condition)
tSU:STA
0.6
Setup Time(Stop Condition)
tSU:STO
0.6
Note. The timing relating to the I²C bus is as stipulated by the I²C bus specification,
and not determined by the device itself. For details, see I²C bus specification.
(7-2) Timing 2
tHD : DAT
Units
Usec
Usec
Usec
Nsec
Nsec
Usec
Usec
VIH
SDA
VIL
tHIGH
VIH
SCL
VIL
TSU : DAT
Parameter
Data Setup Time
Data Hold Time
Symbol
tSU:DAT
tHD:DAT
Min
100¹
0.0
Max
0.9²
Units
nsec
usec
Clock Pulse High Time
tHIGH
0.6
usec
1 _{If I}2_{C is used in standard mode, tSU: DAT ≥ 250 ns is required.}
2 _{This condition must be met if the AK8854 is used with a bus that does not extend tLOW (to use}
tLOW at minimum specification).
MS1189-E-01
-17-
2010/12