Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com 28th May 2009 IRPS Infra Red reflective proximity sensor This simple IR proximity sensor uses 'modulated burst' sensing method to avoid false triggering and interference. It has a range of about 4 -12cm (depending on the type of reflective surface), and will not respond at all to matt black. Response time is around 10mS, and a small amount of hysteresis (about 1cm) is included to avoid 'chattering' at limit range Vertical and horizontal axis of 'sight' versions will be available. Figure 1: IRPS Features ! ! ! ! Up to 12cm range Simple interface (2.7 - 3.6V at 7mA nominal, cmos output). Low current consumption: 6mA average (20mA peak) 0.5mA (reset) Small size: 22 x 17 x 13 mm Applications ! ! ! ! Robotics Alarms Optical switches Industrial sensing Figure 2: IRPS demo board Radiometrix Ltd IRP Sensor Data Sheet page 1 Figure 3: IRS footprint (top view) Pin description Pin 1 2 3 4 5 6 Name OBJ GND RST LED GND Vcc Function 'high' when reflective object is in view Ground pull low to reset, and disable, the module as pin 4, with series 470R resistor Ground 2.7 -3.6v in (4 - 5v version available) A B GND GND Ground Ground Notes: 1. Pin 1 (OBJ) is a cmos logic output 2. Pin 3 (n_RST) has a 100K pullup to Vcc 3. An optional light emitting diode (low current, 1206 package) can be fitted on the PCB When fitted, it is connected between Pin 4 (LED) and GND 4. The module pinout fits on a 0.1" pitch matrix 5. Vertical and horizontal view versions are available Technical Specifications Range Emission Response time Supply voltage current Interface user Operating temperature Size Radiometrix Ltd 2 - 8cm initial detection (depending on surface sensed) approx 1-2cm of hysteresis is present 940nM OOK modulated datastream (approx 20kbit/sec) < 10mS 2.7 - 3.6v (4 - 5v version available) 6mA average (20mA peak) 0.5mA (reset) 3, 3, 2 pin 0.1" pitch headers -20 to +70 degrees centigrade (Storage -30 to +70 degrees) 22 x 17 x 13 mm (vertical view version) IRP Sensor Data Sheet page 2 Radiometrix Ltd Hartcran House 231 Kenton Lane Harrow, Middlesex HA3 8RP ENGLAND Tel: +44 (0) 20 8909 9595 Fax: +44 (0) 20 8909 2233 [email protected] www.radiometrix.com Copyright notice This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in whole or in part must give clear acknowledgement to the copyright owner. Limitation of liability The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the right to make changes or improvements in the design, specification or manufacture of its subassembly products without notice. Radiometrix Ltd does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. This data sheet neither states nor implies warranty of any kind, including fitness for any particular application. These radio devices may be subject to radio interference and may not function as intended if interference is present. We do NOT recommend their use for life critical applications. The Intrastat commodity code for all our modules is: 8542 6000. R&TTE Directive After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance to the essential requirements specified in Article 3 of the Directive, as appropriate to the particular equipment. Further details are available on The Office of Communications (Ofcom) web site: http://www.ofcom.org.uk/radiocomms/ifi/ Information Requests Ofcom Riverside House 2a Southwark Bridge Road London SE1 9HA Tel: +44 (0)845 456 3000 or 020 7981 3040 Fax: +44 (0)20 7783 4033 [email protected] European Radiocommunications Office (ERO) Peblingehus Nansensgade 19 DK 1366 Copenhagen Tel. +45 33896300 Fax +45 33896330 [email protected] www.ero.dk