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參數(shù)資料
| 型號(hào)： | KA3128 |
| 廠商： | Optek Technology |
| 英文描述： | Reflective Color Sensor Assembly |
| 中文描述： | 反射顏色傳感器大會(huì) |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大小： | 295K |
| 代理商： | KA3128 |
Reflective Color Sensor Assembly
OPB780Z
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.3 04/07
Page 1 of 6
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Features:
High-resolution conversion of light intensity to frequency
Selectable color output frequency
Communicates directly with a microcontroller
Sensor power supply operation (2.7 V to 5.5 V)
LED power separate input
Includes LED, Sensor and interface cable
Ordering Information
OPB780Z
OPB780 with 10” Long Flat Flex Cable
KA3128
10” Long Flat Flex Cable
RoHS
Description:
The
OPB780Z
color sensor uses a light-to-frequency converter that combines 64 configurable silicon photodiodes
(on a 144 um center and measuring 120 um x 120 um each), with a white LED in a small, lightweight package that
makes it ideal for using in miniature applications.
The output is a square wave (50% duty cycle) with a frequency directly proportional to reflected light intensity
(irradiance).
The light-to-frequency converter reads an 8 x 8 array of photodiodes that consists of four groups of 16 photodiodes
each, segregated by color: 16 photodiodes with red filters, 16 photodiodes with green filters, 16 photodiodes with
blue filters and 16 clear photodiodes with no filters. Each color’s group of 16 photodiodes is interdigitated to
minimize the effect of non-uniformity of the incident irradiance. Each color’s group is also connected in parallel.
The type of photodiode used during operation is pin-selectable.
The output of the device is designed to drive a standard TTL or CMOS logic input over short distances.
The internal photodiode used by the device is controlled by two logic inputs, S2 and S3. See page 4 for more
information.
A 10 “ [25.4 cm] Flat Flexible Cable (FFC) is included for easy hook-up.
The FFC is designed to interface with an AVX (ELCO) part number 04 6249 0080 00 800 connector.
For more information, contact your local representative or OPTEK.
Applications:
Photographic equipment
Colormetry
Chemical analyzers
Display contrast controls
High resolution digital measurement of light
intensity
Photodiode Array
Current-to-Frequency
Converter
S3
S2
Out
Light
6
4
3
Block Diagram
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