S11059-01WT Datasheet, PDF (3/9 Pages) Hamamatsu Corporation – I2C interface-compatible color sensor

Color sensor
S11059-01WT
I²C section (Ta=25 °C, Vdd=3.3 V, unless otherwise noted)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
I²C address
ADDR 7 bits
0x2A (0101010)
I²C clock frequency
fclk
1
-
400
kHz
SDA, SCL output
High level Voh Rp=2.2 k:
0.7Vbus
-
-
V
voltage
Low level Vol Rp=2.2 k:
0
-
0.4
V
Input/output terminal capacitance Ci
-
-
20
pF
SDA/SCL output fall time *⁵
tf Rp=2.2 k:, Cp=400 pF
-
-
250
ns
*5: SCL/SDA output rise time is determined by a time constant of Cbus × Rp.
Note: The I²C interface (SDA, SCL) timings conform to the "I²C bus speci¿cation version 2.1".
Register map
Adrs
Function
bit
7
6
5
4
3
2
1
0
00 Control
ADC reset
1: Reset
0: Operation
Standby function
1: Standby mode
0: Operating mode
Standby function
monitor
-
Gain selection Integration mode Integration time setting
1: High gain 1: Manual setting mode (00) 87.5 Njs, (01) 1.4 ms
0: Low gain 0: Fixed period mode (10) 22.4 ms, (11) 179.2 ms
01
02
Manual timing register
Integration time manual setting register (MSB)
Integration time manual setting register (LSB)
03 Sensor data register
04 (red)
05 Sensor data register
06 (green)
Output data (red, MSB)
Output data (red, LSB)
Output data (green, MSB)
Output data (green, LSB)
07 Sensor data register
08 (blue)
Output data (blue, MSB)
Output data (blue, LSB)
09 Sensor data register
0A (infrared)
Output data (infrared, MSB)
Output data (infrared, LSB)
Adrs 00 bit 7: Asserting this bit to “1”, the ADC block is reset. The register data is not reset. To start the operation, set this bit to “0”.
Adrs 00 bit 6: Asserting this bit to “1” the device goes into standby mode. The ADC block stops its operation. The register data is not reset.
To start the operation, set this bit to “0”.
Adrs 00 bit 5: This monitors auto standby function. “1” means standby mode. This is read only.
Adrs 00 bit 3: Gain selection bit. “1” is high gain mode and “0” is low gain mode. This bit is selecting the photodiode area. The size ratio of
high gain photodiode area and low gain photodiode area is 10 : 1. Therefore the gain ratio is 10 times from low to high.
Adrs 00 bit 2: Asserting this bit to “1”, the device goes into manual setting mode. Deasserting this bit to 0, goes into ¿xed period mode. In
manual setting mode, the S11059-01WT automatically goes to standby mode after a measurement is made. In ¿xed period
mode, measurements are continuously repeated.
Adrs 00 bit 1,0: These bits select the period of internal basis clock. The period is equal to integration time per color in ¿xed period mode. “00”
is 87.5 us, “01” is 1.4 ms, “10” is 22.4 ms, “11” is 179.2 ms. In manual setting mode, “00” is 175 —s, “01” is 2.8 ms, “10” is
44.8 ms, “11” is 368 ms. The integration time per color is set to multiple value (Adrs 01 & 02) with the period.
Adrs 01 & 02: This is a multiple value setting in manual setting mode, and can be set to a minimum of 0x0000 and a maximum of 0xFFFF
(65535). This is used to set how far to expand the integration time per color which speci¿ed by “Integration time setting”
(Tint). For example, if you want to set the integration time per color to 546 ms, set 175 —s by Tint=“00” and then set this
register to N=3120 (0xC30).
Mode
Fixed period mode
Manual setting mode
Manual timing register
(Adrs 01 & 02)
Disabled
N
00
87.5 Njs
175 × N Njs
Integration time setting (Tint)
01
10
1.4 ms
22.4 ms
2.8 × N ms
44.8 × N ms
11
179.2 ms
358.4 × N ms
Adrs 03 to 0A: These bytes are register for sensor data. S11059-01WT measurement result is stored in these registers when the I²C
command is changed to read mode. The values are kept until next read cycle.
Initial setting [Low gain, manual setting mode, Tint=00 (175 Njs), integartion time 546 ms/ch]
Adrs
Function
7
6
5
bit
4
3
2
1
0
Hex
00 Control
1
1
1
-
0
1
0
0
0xE4
01
02
Manual timing register
0
0
0
0
0
1
0
1
1
0
1
0
0
0
0
0x0C
0
0x30
3