AK8817_09 Datasheet, PDF (17/50 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
(5) I2C Bus Input/Output Timing < Ta = -30 ~ +85 °C >
[AK8817/18]
tBUF ^tHD:STA
tR
tF
tSU:STO
SDA
SCL
(5-1) Timing 1
VSDAH: 0.8PVDD
VSDAL : 0.2PVDD
tF
tR
tLOW
tSU:STA
Parameter
Symbol
Min.
Max.
Unit
Bus Free Time
tBUF
1.3
usec
Hold Time (Start Condition)
tHD:STA
0.6
usec
Clock Pulse Low Time
tLOW
1.3
usec
Input Signal Rise Time
tR
300
nsec
Input Signal Fall Time
tF
300
nsec
Setup Time(Start Condition)
tSU:STA
0.6
usec
Setup Time(Stop Condition)
tSU:STO
0.6
usec
The above I2C bus related timing is specified by the I2C Bus Specification, and it is not limited by the device
performance. For details, please refer to the I2C Bus Specification.
(5-2) Timing 2
tHD:DAT
VSDAH
VSDAL
VSDAH
VSDAL
SDA
SCL
tHIGH
VSDAH
VSDAL
VSDAH
VSDAL
VSDAH: 0.8PVDD
VSDAL : 0.2PVDD
tSU:DAT
Parameter
Symbol
Min.
Max.
Unit
Data Setup Time
tSU:DAT 100 (note1)
nsec
Data Hold Time
tHD:DAT
0.0
0.9 (note2)
usec
Clock Pulse High Time
tHIGH
0.6
usec
note 1 : when to use I2C Bus Standard mode, tSU:DAT >- 250 ns must be met.
note 2 : when the AK8817/18 is used in such bus interface where tLOW is not extended ( at minimum specification of
tLOW ), this condition must be met.
Rev.001E
17
2009 / 12