AK9720 Datasheet, PDF (12/31 Pages) Asahi Kasei Microsystems – IR Sensor Module with I2C I/F

[AK9720]
3) Digital AC Characteristics (1)：Standard mode （100kHz）
Unless otherwise specified VDD = 1.71 to 3.63V, DVDD = 1.65 to VDD;
Ta = -30 to +85C
Parameter
Code
Min.
Typ.
Max.
Unit
SCL frequency
fSCL
Noise suppression time
tI
SDA bus idle time to the next
tBUF
4.7
command input
Start condition Hold time
tHD:STA
4.0
Clock low period
tLOW
4.7
Clock high period
tHIGH
4.0
Start condition set-up time
tSU:STA
4.7
Data hold time
tHD:DAT
0
Data setup time
tSU:DAT
250
Rise time
tR
SDA, SCL note)
Fall time
tF
SDA, SCL note)
Stop condition setup time
tSU:STO
4.0
100
kHz
50
ns
µs
µs
µs
µs
µs
µs
ns
1.0
µs
0.3
µs
µs
Note) Reference data only, not tested
4) Digital AC Characteristics (2)： Fast mode (400kHz)
Unless otherwise specified, VDD = 1.71 to 3.63V, DVDD = 1.65 to VDD;
Ta = -30 to +85C
Parameter
Code
Min.
Typ.
Max.
Unit
SCL Frequency
fSCL
Noise suppression time
tI
SDA bus idle time to the nest
tBUF
1.3
command input
Start condition hold time
tHD:STA
0.6
Clock low period
tLOW
1.3
Clock high period
tHIGH
0.6
Start condition set-up time
tSU:STA
0.6
Data in hold time
tHD:DAT
0
Data in setup time
Rise time
SDA, SCL (note)
Fall time
SDA, SCL (note)
Stop condition setup time
tSU:DAT
100
tR
tF
tSU:STO
0.6
Note) Reference data not tested
400
kHz
50
ns
µs
µs
µs
µs
µs
µs
ns
0.3
µs
0.3
µs
µs
Rev.02
AKM Confidential
- 12 -
2012/11