Product
Document
Published by
ams OSRAM Group
ams Datasheet Page 1
[v1-01] 2018-Mar-14 Document Feedback
TCS3200
Programmable
Color Light-to-Frequency Converter
The TCS3200 programmable color light-to-frequency converter
combines configurable silicon photodiodes and a
current-to-frequency converter on a 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.
In the TCS3200, the light-to-frequency converter reads an 8 × 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
photodiodes of the same color are connected in parallel. Pins
S2 and S3 are used to select which group of photodiodes (red,
green, blue, clear) are active. Photodiodes are 110μm × 110μm
in size and are on 134μm centers.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of TCS3200 Programmable Color
Light-to-Frequency Converter are listed below:
Figure 1:
Added Value of Using TCS3200
Benefits Features
• Enables High-Resolution Conversion of Light
Intensity to Frequency
• Programmable Color Light-to-Frequency Converter
• Disables the Output into a Hi-Impedance State
when OE Input Pin is Low
• Output Enable (OE) Pin
• Enables Output Range to be Optimized for a
Variety of Low-Cost Measurement Techniques
• Output Frequency Scaling
• Reduces Board Space Requirements while
Simplifying Designs
• Available in 5mm x 6.2mm SOIC (D) Package
General Description