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AMS OSRAM TSL2522 EVM kit User Manual

Highly sensitive ambient light sensor with light flicker detection
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TSL2522 EVM kit
User Guide
Highly sensitive ambient light sensor with light flicker detection
Published by ams-OSRAM AG
Tobelbader Strasse 30, 8141 Premstaetten, Austria
Phone +43 3136 500-0
ams-osram.com
© All rights reserved

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Summary of Contents for AMS OSRAM TSL2522 EVM kit

  • Page 1 TSL2522 EVM kit User Guide Highly sensitive ambient light sensor with light flicker detection Published by ams-OSRAM AG Tobelbader Strasse 30, 8141 Premstaetten, Austria Phone +43 3136 500-0 ams-osram.com © All rights reserved...
  • Page 2: Table Of Contents

    TSL2522 EVM kit Table of contents Table of contents Introduction .............. 3 Kit content ................3 Ordering information ............... 4 Getting started ............4 Hardware description ..........4 Software description..........5 Software to hardware connection ........... 6 System menus ................ 7 System level controls ..............
  • Page 3: Introduction

    TSL2522 EVM kit Introduction Introduction The TSL2522 evaluation kit features ambient light sensing and comes in a low-profile and small footprint, L2.0 mm X W1.0 mm X H 0.5mm optical QFN package. Kit content Figure 1: Evaluation kit contents Item Description TSL2522 Daughter Board PCB with TSL2522 sensor installed...
  • Page 4: Ordering Information

    When the EVM controller is connected to the PC through USB, a green LED on the board lights up to indicate the system is getting power. Please refer to the ams OSRAM website for additional technical documents on the TSL2522 sensor, including the schematics and layout.
  • Page 5: Software Description

    TSL2522 EVM kit Software description Figure 2: Evaluation kit hardware Software description The main window (Figure 3) contains the system menus, system-level controls, device information, and logging status. The Configuration tab contains controls to set up both ALS and Flicker detection parameters. The ALS tab and SW Flicker tab display ALS and Flicker data.
  • Page 6: Software To Hardware Connection

    TSL2522 EVM kit Software description Figure 3: GUI main window Software to hardware connection On startup, the software automatically connects to the hardware. On successful initialization, the software displays a main window -- containing controls pertinent to the connected device. If the software detects an error, an error window appears.
  • Page 7: System Menus

    TSL2522 EVM kit Software description If the EVM board disconnects from the USB bus while the program is running, the program displays an error message and then terminates. Reconnect the EVM board and restart the program. System menus At the top of the window there are pull-down menus labeled “File”, “Log”, and “Help”. The File menu provides basic application-level control.
  • Page 8 TSL2522 EVM kit Software description Figure 5: Log menu Click Start Logging to start the logging function. Each time the program polls the output information from the device, it creates a new log entry showing the raw data values, the values of various control registers, and the values entered by the user into the text fields near the bottom right corner of the window.
  • Page 9: System Level Controls

    TSL2522 EVM kit Software description The About function displays a dialog box (Figure 7) showing the version and copyright information for the application and library. Click the OK button to close this window and continue. Figure 7: About window System level controls Immediately below the top menu bar are checkboxes used to control the system-level functions of the TSL2522 device.
  • Page 10: Auto Polling

    TSL2522 EVM kit Software description Auto polling The application automatically polls the TSL2522 raw data of ALS and Flicker if enabled. The Poll Interval at the upper right corner of the form displays the actual time between the device reads. Device ID information The lower left corner of the window displays the ID number of the EVM Controller board and identifies the device being used.
  • Page 11: Configuration" Tab

    TSL2522 EVM kit Software description number of entries in the log reaches this value, the program will automatically stop logging and display a file dialog box to specify where to store the logged data. You may change the file name if desired. The maximum value that can be entered in this field is 32000. “Configuration”...
  • Page 12 TSL2522 EVM kit Software description 4.7.1 Configuration controls ALS Enable control enables the ALS detection if checked. Flicker Enable control enables the Flicker detection if checked. The SAMPLE TIME control sets the time of one flicker measurement. It also defines the measurement time of the step for ALS measurements.
  • Page 13 TSL2522 EVM kit Software description • AGC group box has two checkboxes. One is the Prediction checkbox for enabling the prediction of the AGC function for all steps of the sequence if checked. The second is the Saturation checkbox which enables AGC analog saturation if checked. •...
  • Page 14: Als" Tab

    TSL2522 EVM kit Software description “ALS” tab The ALS tab displays measurement data as shown in Figure 10. Figure 10: ALS tab 4.8.1 ALS group box The left-hand side of the ALS tab displays the ALS measurement data with the following items: •...
  • Page 15 TSL2522 EVM kit Software description • Photopic Saturation status: A green color means no saturation happened. A red color means otherwise. • IR 1 Saturation status: A green color means no saturation happened. A red color means otherwise. • Lux: Calculated Lux value. 4.8.2 Flicker sampling group box The following items are displayed in the Flicker Sampling group box:...
  • Page 16 TSL2522 EVM kit Software description Figure 11: ALS data plot The scale of the plot’s Y-axis can be adjusted by clicking on the small up and down arrows at the top left-hand corner of the plot. The scale can be set to any power of 2 from 64 through 1048576.
  • Page 17: Sw Flicker" Tab

    TSL2522 EVM kit Software description “SW flicker” tab The main portion of the screen contains a tab labeled SW Flicker. Figure 12: SW flicker tab 4.9.1 Flicker information The left-hand side of the SW Flicker tab displays the ALS and Flicker information as in the ALS tab.
  • Page 18 TSL2522 EVM kit Software description 4.9.2 Flicker output data The top right-hand section of the SW Flicker tab displays a plot of the original flicker data and the data after FFT. The peak Flicker Frequency is also displayed there. Figure 13: SW flicker data plot The scale of the plot’s Y-axis can be adjusted by clicking on the small up and down arrows at the top left-hand corner of the plot.
  • Page 19: Resources

    TSL2522 EVM kit host application software please refer to the TSL2522 EVM kit Quick Start Guide. Designer’s Notebooks dealing with various aspects of optical measurement and optical measurement applications are available. All content is available on the ams OSRAM website, ams-osram.com Referring documents: •...
  • Page 20: Revision Information

    Draft / Preliminary: The draft / preliminary status of a document indicates that the content is still under internal review and subject to change without notice. ams-OSRAM AG does not give any warranties as to the accuracy or completeness of information included in a draft / preliminary version of a document and shall have no liability for the consequences of use of such information.
  • Page 21: Legal Information

    No obligation or liability to recipient or any third party shall arise or flow out of ams- OSRAM AG rendering of technical or other services.