Archive Press Release
(Products mentioned in this Archive Press Release may or may not be available from the manufacturer.)
Release date: February 13, 2003
TCS230 Programmable Color Light-To-Frequency Converter• High-Resolution Conversion of Light 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/°C Temperature Coefficient
• Low-Profile Surface-Mount Package
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 mm x 120 mm in size and are on 144-mm centers.
Company Information:
Name: Texas Advanced Optoelectronic Solutions
Address: 800 Jupiter Rd., Suite 205
City: Plano
State: TX
ZIP: 75074
Country: USA
Phone: 972-673-0759
FAX: 972-943-0610
http://www.taosinc.com
Related keywords:
CIRCUIT
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CMOS
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COLOR
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CONVERTER
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FREQUENCY
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INTEGRATED
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LIGHT
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MONOLITHIC
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PHOTODIODES
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PROGRAMMABLE
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SURFACE MOUNT
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LIGHT TO FREQUENCY
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| Search the industrial web for: "CIRCUIT, CMOS, COLOR, CONVERTER, FREQUENCY, INTEGRATED, LIGHT, MONOLITHIC, PHOTODIODES, PROGRAMMABLE, SURFACE MOUNT, LIGHT TO FREQUENCY" |
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| More New Product News from this company: | | Dec 12, 2006 | Evaluation Module is suited for light-to-frequency converters. |
| Nov 1, 2006 | Light-to-Frequency Converter comes in 4-pin T SMT package. |
| Feb 28, 2006 | Light-to-Digital Converters measure from 0.1-40,000 lux. |
| Jan 4, 2006 | Light-to-Frequency Converter offers output enable option. |
| Mar 1, 2005 | Light-to-Digital Converters aid in ambient light sensing. |
| Jun 15, 2004 | Light-to-Voltage Converters simplify board design. |
| Mar 19, 2004 | Converter senses ultra-low light levels. |
| Oct 10, 2003 | Light-to-Voltage Converters come in 8-pin SOIC packages. |
| Apr 28, 2003 | Evaluation Module can be used as development platform. |
| Sep 23, 2002 | Light Sensor converts light intensity to digital signals. |
| Sep 18, 2002 | Light Sensor converts light intensity to digital signal. |
| May 31, 2002 | Linear Sensor Arrays operate at 5 MHz clock. |
| Feb 27, 2002 | Reflective Color Sensors detect red, blue or green. |
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