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TCS230D Datasheet

  • TCS230D

  • PROGRAMMABLE COLOR LIGHTTOFREQUENCY CONVERTER

  • 8頁

  • ETC

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t
t
TCS230
PROGRAMMABLE
COLOR LIGHT TO FREQUENCY CONVERTER
TAOS046 鈥?JANUARY 2003
D
High-Resolution Conversion of Light
D
D
D
D
D
D
D
Intensity to Frequency
Programmable Color and Full-Scale Output
Frequency
Communicates Directly With a Microcontroller
Single-Supply Operation (2.7 V to 5.5 V)
Power Down Feature
Nonlinearity Error Typically 0.2% at 50 kHz
Stable 200 ppm/擄C Temperature Coefficient
Low-Profile Surface-Mount Package
SO 1
S1 2
OE 3
GND 4
SOIC PACKAGE
(TOP VIEW)
8 S3
7 S2
6 OUT
5 V
DD
Description
The TCS230 programmable color light-to-frequency converter combines configurable silicon photodiodes and
a current-to-frequency converter on single monolithic CMOS integrated circuit. The output is a square wave
(50% duty cycle) with frequency directly proportional to light intensity (irradiance). The full-scale output
frequency can be scaled by one of three preset values via two control input pins. Digital inputs and digital output
allow direct interface to a microcontroller or other logic circuitry. Output enable (OE) places the output in the
high-impedance state for multiple-unit sharing of a microcontroller input line.
The light-to-frequency converter reads an 8 x 8 array of photodiodes. Sixteen photodiodes have blue filters, 16
photodiodes have green filters, 16 photodiodes have red filters, and 16 photodiodes are clear with no filters.
The four types (colors) of photodiodes are interdigitated to minimize the effect of non-uniformity of incident
irradiance. All 16 photodiodes of the same color are connected in parallel and which type of photodiode the
device uses during operation is pin-selectable. Photodiodes are 120
碌m
x 120
碌m
in size and are on 144-碌m
centers.
Functional Block Diagram
Output
Light
Photodiode
Array
Current-to-Frequency
Converter
S2
S3
S0
S1
OE
The
LUMENOLOGY
r
Company
t
Copyright
E
2003, TAOS Inc.
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205
S
Plano, TX 75074
S
(972) 673-0759
t
www.taosinc.com
1

TCS230D 產(chǎn)品屬性

  • TAOS

  • 光頻率和光電壓

  • + 70 C

  • - 40 C

  • SOIC-8

  • Reel

  • 1000

  • TCS230D-TR

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