LX1977IDU MICROSEMI [Microsemi Corporation], LX1977IDU Datasheet - Page 19

• Manufacturer Part Number: LX1977IDU
• Description: SMBus Ambient Light Sensor
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2010
Rev. 1.0, 2010-03-25
Chart 1 – D
250
225
200
175
150
125
100
75
50
25
0
4000
3000
2000
1000
0
0
0
LX1977 D
A L S D
A L S D
TM
COUNT
LX1977 D
1000
50
@ Different T
TINT=6.25mS
TINT=25mS
TINT=50mS
TINT=100mS
COUNT
vs Light Input, TINT=6.25mS @ Different Range
Chart 3 – D
100
C O U N T
C O U N T
COUNT
2000
vs LUX @ Fosc=40.96kHz, T
150
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
vs LUX @ Fosc=40.96kHz, 0~500 Lux
Range, Vcc = 3.3V
Vcc = 3.3V
INT
V S L I G H T I N P U T
LUX INPUT
V S L I G H T I N P U T
COUNT
200
for 0 ~ 500 lux Range
3000
LUX INPUT
250
vs Light Input
4000
300
350
INT
=6.25mS
5000
0 ~ 500 lux
0 ~ 1000 lux
0 ~ 5000 lux
0 ~ 2500 lux
400
Analog Mixed Signal Group
®
Microsemi
450
6000
500
4000
3000
2000
1000
4000
3000
2000
1000
Chart 2 – D
0
0
0
0
SMBus Ambient Light Sensor
LX1977 D
LX1977 D
A L S D
A L S D
500
TINT=6.25mS
TINT=25mS
TINT=50mS
TINT=100mS
@ Different T
1000
COUNT
1000
P
Chart 4 – D
COUNT
RODUCTION
COUNT
C O U N T
C O U N T
1500
vs Light Input, TINT=100mS @ Different
2000
vs LUX @ Fosc=40.96kHz, 0~5000 Lux
vs LUX @ Fosc=40.96kHz, T
Range, Vcc = 3.3V
2000
INT
Vcc = 3.3V
V S L I G H T I N P U T
Range
V S L I G H T I N P U T
COUNT
for 0 ~ 1000 lux Range
LUX INPUT
LUX INPUT
3000
2500
D
ATASHEET
vs Light Input
3000
4000
3500
INT
4000
=100mS
5000
0 ~ 500 lux
0 ~ 1000 lux
0 ~ 5000 lux
0 ~ 2500 lux
LX1977
4500
6000
5000
Page 19