ISL29147_15 Datasheet, PDF (5/15 Pages) Intersil Corporation – Low Power Ambient Light and Proximity Sensor with Enhanced Infrared Rejection

ISL29147
I²C Electrical Specifications For SCL and SDA unless otherwise noted, V_DD = 3V, T_A = +25°C (Note 8). (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 10)
MAX
TYP (Note 10) UNITS
t_SU:DAT Data Set-up Time
100
ns
t_R
Rise Time of both SDA and SCL Signals
(Note 9)
20 + 0.1 x C_b
ns
t_F
Fall Time of both SDA and SCL Signals
(Note 9)
20 + 0.1 x C_b
ns
t_SU:STO Set-up Time for STOP Condition
600
ns
t_BUF
Bus Free Time Between a STOP and START Condition
1300
ns
C_b
Capacitive Load for Each Bus Line
400
pF
R_pull-up SDA and SCL System Bus Pull-Up Resistor
Maximum determined by t_R and t_F
1
kΩ
t_VD;DAT Data Valid Time
0.9
µs
t_VD:ACK Data Valid Acknowledge Time
0.9
µs
V_nL
Noise Margin at the LOW Level
0.1V_DD
V
V_nH
Noise Margin at the HIGH Level
0.2V_DD
V
NOTES:
6. Cover glass assumes fixed infrared/visible light transmissivity ratio of 10.
7. An 850nm infrared LED is used in production test for proximity/IR sensitivity testing.
8. All parameters in the I²C Electrical Specifications table are guaranteed by design and simulation.
9. C_b is the capacitance of the bus in pF.
10. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
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5
FN8409.3
January 6, 2015