S9706 Datasheet, PDF (2/3 Pages) Hamamatsu Corporation – Digital color sensor 12-bit digital output

Digital color sensor S9706
˙ Sensitivity setting
Range
Mode
Effective active area *
High
High sensitivity
9 × 9 elements
Low
Low sensitivity
3 × 3 elements
* The active area of S9706 consists of 9 × 9 elements in a mosaic pattern.
The effective active area changes depending on which sensitivity mode is
used, “high” or “low”, as explained below.
· High sensitivity mode: 9 × 9 elements
· Low sensitivity mode: 3 × 3 elements in center
s Details of active area (unit: µm)
132
110
Pin No. 1 side
Pin No. 6 side
3 × 3 elements in
low sensitivity mode
9 × 9 elements in
high sensitivity mode
Pin No. 3 side
Pin No. 4 side
Note: Spaceing between elements is light-shielded.
s Spectral response
1.0
0.8
BLUE
0.6
(Typ. Ta=25 ˚C)
GREEN
RED
0.4
0.2
0
300
400
500
600
700
800
s Output vs. illuminance
Low range
10000
(Typ. A light source, Green)
Tg=100 s
1000
10 s
1s
100 ms
100
10 ms
1 ms
10
100 µs
10 µs
WAVELENGTH (nm)
KPICB0089EA
1
0.1 1 10 100 1000 10000 100000 1000000
ILLUMINANCE (lx)
KPICB0099EA
KPICC0124EB
10000
High range
(Typ. A light source, Green)
Tg=100 s
1000
10 s
1s
100
100 ms
10 ms
1 ms
10
100 µs
10 µs
1
0.01 0.1
1 10 100 1000 10000 100000
ILLUMINANCE (lx)
KPICB0100EA
s Timing chart
Range
Gate
t4
tg
CK
Dout
t5
t3
12 PULSE
12 PULSE
12 PULSE
····
····
····
t1
t2
tck
tw
RED OUTPUT (12 bit OUTPUT) GREEN OUTPUT (12 bit OUTPUT) BLUE OUTPUT (12 bit OUTPUT)
LSB
····
MSB LSB
····
MSB LSB
····
MSB
Operating sequence
1) Set the Gate terminal and CK terminal to “Low”.
2) Select the desired sensitivity with the Range terminal.
3) Set the Gate terminal from “Low” to “High”, to start integrating the light intensity.
4) After the desired integration time (tg) has passed, set the Gate terminal from “High” to “Low” to end the light intensity integration.
5) Measurement data is output from the Dout terminal by inputting 36 CK pulses to the CK terminal.
Note 1: A total of 36 CK pulses are required to read out 3-color measurement data. Red data is output by the first 12 pulses,
green data by the next 12 pulses, and blue data by the last 12 pulses. Measurement data is output from the LSB side.
Note 2: Measurement data changes at the CK pulse rising edge.
Note 3: Do not switch the Range terminal during integration time (tg).
KPICC0115EB
2