TSL2550-RS232EVM TAOS, TSL2550-RS232EVM Datasheet - Page 5

• Manufacturer Part Number: TSL2550-RS232EVM
• Description: Optical Sensor Development Tools Evaluation Module TSL2550
• Manufacturer: TAOS

Specifications of TSL2550-RS232EVM

• Maximum Operating Temperature: + 55 C
• Minimum Operating Temperature: 0 C
• Description/function: Ambient Light Sensor
• For Use With/related Products: TSL2550
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

An Evaluation System for the TSL2550 Ambient Light Sensor
S
D
OFTWARE
ESCRIPTION
To start the TSL2550EVM software, click:
Start -> Programs -> TSL2550EVM -> TSL2550 Evaluation Module.
See Figure 3 regarding a sample screen capture of the software.
The EVM application constantly monitors the ambient light level through the use of two photodiodes
on the TSL2550. One of the photodiodes (Channel 0) is sensitive to both visible and infrared light,
while the second photodiode (Channel 1) is sensitive primarily to infrared light. An integrating ADC
converts the photodiode currents to Channel 0 and Channel 1 digital outputs. Channel 1 digital output
is used to compensate for the effect of the infrared component of light on the Channel 0 digital
output.
Figure 3. TSL2550 EVM Application
L
E
UX
QUATION
The TSL2550 is designed for use with broad wavelength light sources, and the formula to obtain
illuminance describes a best fit curve for fluorescent, incandescent, and sunlight ambient conditions to
approximate the human eye response.
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