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SFH-7779 Datasheet(PDF) 3 Page - OSRAM GmbH

Part # SFH-7779
Description  Ambient Light and Proximity Sensor with Integrated 940nm IR Emitter
PDF  35 Pages
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Manufacturer  OSRAM [OSRAM GmbH]
Direct Link  http://www.osram.com
Logo OSRAM - OSRAM GmbH

SFH-7779 Datasheet(HTML) 3 Page - OSRAM GmbH

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Version 1.2
SFH 7779
2016-04-25
3
Short Evaluation program
I
2C interface
• I/O-pins are open drain type and logic high level is set with external pull-up resistor
• SFH 7779 operates in slave mode. Slave address is 0111001 (0x39h)
• Designed for the I
2C Fast mode (400 kb/s)
• Interrupt pin (INT): open-drain output (like SDA and SCL)
Block diagram
Adress
Command
Action
0x42
0x3F
set LED pulse current to 200mA and ALS gain to x128
0x41
0x06
activate ALS & PS with a measurement repetition time of 100ms
Wait 100ms
0x44
read data
read LSB of proximity measurement data
0x45
read data
read MSB of proximity measurement data
0x46
read data
read LSB of ambient light measurement of VIS diode
0x47
read data
read MSB of ambient light measurement of VIS diode
0x48
read data
read LSB of ambient light measurement of IR diode
0x49
read data
read MSB of ambient light measurement of IR diode
8
Analog / amplifier
digital
+
data-
register
proximity
ambient
light
I2C
LED
driver
4
5
SDA
SCL
7
6
INT
GND
V LED
CATH
5
Analog / amplifier
digital
+
data-
register
proximity
ALS
VIS
I2C
LED
driver
7
2
SDA
SCL
3
1
14
8
INT
GND
V
DD
V
DD
LED_A
LED_C
ALS
IR
86
LDR
8
Analog / amplifier
digital
+
data-
register
proximity
ambient
light
I2C
LED
driver
4
5
SDA
SCL
7
6
INT
GND
V LED
CATH
5
Analog / amplifier
digital
+
data-
register
proximity
ALS
VIS
I2C
LED
driver
7
2
SDA
SCL
3
1
14
8
INT
GND
V
DD
V
DD
LED_A
LED_C
ALS
IR
86
LDR



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