MAX44000GDT(2011) データシートの表示（PDF） - Maxim Integrated
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MAX44000GDT Datasheet PDF : 24 Pages
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Ambient and Infrared Proximity Sensor
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 1.8V, TMIN – TMAX = -40°C to +105°C, TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
I2C TIMING CHARACTERISTICS
Serial-Clock Frequency
Bus Free Time Between STOP
and START
SYMBOL
fSCL
tBUF
CONDITIONS
MIN TYP MAX UNITS
400
kHz
1.3
Fs
Hold Time (Repeated) START
Condition
tHD,STA
0.6
Fs
Low Period of the SCL Clock
High Period of the SCL Clock
tLOW
tHIGH
1.3
Fs
0.6
Fs
Setup Time for a REPEATED
START
tSU.STA
0.6
Fs
Data Hold Time
Data Setup Time
tHD,DAT
tSU,DAT
0
0.9
Fs
100
ns
SDA Transmitting Fall Time
tF
ISINK P 6mA, tR and tF between 0.3 x VDD
and 0.7 x VDD
100
ns
Setup Time for STOP Condition
Pulse Width of Suppressed Spike
tSU,STO
tSP
0.6
Fs
0
50
ns
Note 2: All devices are 100% production tested at TA = +25NC. Temperature limits are guaranteed by design.
Note 3: Guaranteed by design. Green 538nm LED chosen for production so that the IC responds to 100 lux flourescent light with
100 lux.
Typical Operating Characteristics
(VDD = 1.8V, TMIN – TMAX = -40°C to +85°C, unless otherwise noted. All devices are 100% production tested at TA = +25°C.
Temperature limits are guaranteed by design.)
SPECTRUM RESPONSE
120
GREEN CHANNEL
100
RED CHANNEL
CIE CURVE
80
60
40
20
0
270 370 470 570 670 770 870 970 1070
WAVE LENGTH (nm)
ADC COUNT vs. DISTANCE
vs. LED DRIVE CURRENT
300
250
200
IOUT = 110mA
150
IOUT = 50mA
100
IOUT = 20mA
50
0
0 20 40 60 80 100 120 140
DISTANCE (mm)
ADC COUNT vs. DISTANCE vs. OBJECT
300
250
200
WHITE CARD
150
100
GREY CARD
50
0
0 10 20 30 40 50 60 70 80 90 100
DISTANCE (mm)
4 _______________________________________________________________________________________
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