ADJD-S312-CR999 데이터 시트보기 (PDF) - Avago Technologies
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ADJD-S312-CR999 Datasheet PDF : 18 Pages
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Detail Description
A hardware reset (by asserting XRST) should be per-
formed before starting any operation.
The user controls and configures the device by program-
ming a set of internal registers through a serial interface.
At the start of application, the following setup data must
be written to the setup registers:
Address (Hex)
03
04
0C
0D
0E
Register
SETUP0
SETUP1
SETUP2
SETUP3
SETUP4
Setup Data (Hex)
01
01
01
01
01
Sensor Gain Settings
The sensor gain can be adjusted by varying the photo-
diode size and integration time of the sensor manually
through the following registers.
Sensor Sensitivity ~ Photodiode Size x Integration Time Slot
Address
(Hex)
0B
0A
09
11
10
0F
Register
PDASR
PDASG
PDASB
TINTR
TINTG
TINTB
Description
Red Channel Photodiode Size
Green Channel Photodiode Size
Blue Channel Photodiode Size
Red Channel Integration Time
Green Channel Integration Time
Blue Channel Integration Time
Setup Value for Photodiode Size
The following value can be written to each of the photo-
diode size registers to adjust the gain of the sensor. The
default value after reset for these registers is 07H.
Value (Hex)
01
03
07
0F
Photodiode Size
¼
½
¾
Full
Setup Value for Integration Time
The following value can be written to each of the integra-
tion time registers to adjust the gain of the sensor. The
default value after reset for these registers is 07H.
Value (Hex)
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
Integration Time Slot
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Sensor ADC Output Registers
To obtain sensor ADC value, ‘02’ Hex must be written
to ACQ register before reading the Sensor ADC Output
Registers.
Address
(Hex)
02
Register
ACQ
44
ADCR
43
ADCG
42
ADCB
Description
Acquire sensor analog to digital
converter (ADC) values when 02H is
written. Reset to 00H when sensor
acquisition is completed
Sensor Red channel ADC value.
Sensor Green channel ADC value.
Sensor Blue channel ADC value.
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