Microwave Solutions MDU1720 MDU1720 X-Band Doppler Motion Detector User Manual August 11 2009

Microwave Solutions Ltd. MDU1720 X-Band Doppler Motion Detector August 11 2009

User manual

MDU1720 User Manual.doc Page 1 USER MANUAL MDU1720 FCC-ID: ROO-MDU1720 IC: 10829A-MDU1720 Description The Microwave Solutions MDU1720 Motion Detector Unit is an X-Band microwave transceiver that utilises the Doppler shift phenomenon to "sense" motion. The unit, contained in a lightweight plastic housing, features a dielectric resonator stabilised FET oscillator, which provides stable operation over a broad temperature range in either CW or low duty cycle pulse mode and a balanced mixer for enhanced sensitivity and reliability. The basic principle of operation consists of detecting the frequency shift between a transmitted and a received signal reflected back from a moving object within the field of view of the unit. The unit produces a low level output signal which can be amplified and processed to provide an audible or visual alarm signal. The MDU1720 employs low cost surface mount manufacturing techniques which are field proven as being rugged and reliable. Absolute Maximum Ratings Parameter Symbol Rating Units Comment Supply Voltage VCC +5.25 V Operating Temperature TOP -40 to +70 °C Performance level not guaranteed Storage Temperature TSTG -40 to +80 °C Electrical Characteristics Parameter Symbol Min. Typ. Max. Units Comment Transmit Frequency fT 10.500 10.525 10.500 GHz Preset during manufacture. Temperature Stability ∆f 6.5 MHz Over TOP range below Output Power POUT 18 dBm EIRP Antenna Beamwidth 72 ° -3dB, horizontal with tab down 36 ° -3dB, vertical with tab down IF Output Offset VDC -150 0 +150 mV Into free space Sensitivity -86 dBm 10dB S/N ratio Noise 10 µV In 3Hz – 80Hz bandwidth Supply Voltage VCC 4.75 5.00 5.25 V Supply Current ICC 40 60 mA Pulse Width 5 µs Min. duty cycle – 1% Operating Temp TOP -10 +55 °C Full spec. compliance
MDU1720 User Manual.doc Page 2 Coverage Patterns Connections & Mechanical Outline Handling Precautions The MDU1720 is sensitive to damage from ESD.  Normal precautions as usually applied to CMOS devices are sufficient when handling the module.  Touching the connection points should be avoided before soldering the module into circuit.  Using a multimeter (e.g. for resistance measurement) between any of the connection points may cause damage to the module. Certification Microwave Solutions Ltd. has established and maintains a Quality System that has been audited by BSI and holds ISO 9001:2008 approval under certificate FM56058. The MDU1720 complies with the requirements of the RoHS Directive European Union Directive 2011/65/EU and with the requirements of the REACH Regulations EC 1907/2006.
MDU1720 User Manual.doc Page 3 OEM Responsibilities Manufacturers of mobile or fixed devices incorporating MDU1720 modules are authorized to use the FCC Grants and IC Certificates of the MDU1720 modules for their own final products under the conditions referenced in this document. It is the responsibility of the manufacturer of the final product to ensure that the MDU1720 module is operated within the approved conditions shown below. If the FCC/IC label of the module is not visible when the module is installed inside the final product then the outside of the final product must also display a label stating "Contains FCC ID: ROO-MDU1720" and "Contains IC: 10829A-MDU1720". Approved Operating Conditions to meet FCC/IC requirements The MDU1720 module can be operated in full compliance with FCC/IC requirements (depending on the characteristics of the final product) under the following conditions: 1) The power supply voltage provided to the module (at the module terminals) must be maintained within the specified range of +5 ± 0.25 volts under all conditions of AC line voltage irregularities, battery voltages, ambient temperatures and worst case load conditions. 2) If the module is operated under pulsed conditions, the rise and fall times of the power pulse shall be less than 1 µs and, during the pulse, the power supply voltage shall be maintained within the limits of 1) above under all conditions. 3) A minimum separation distance of 2.2cm is required between the user and the module when operating at 100% duty cycle. At a duty cycle of 40%, the minimum separation distance would be 1.4cm. 4) If the final product is designed only for use only within a building or to open building doors it can be operated with any duty cycle up to and including 100% (averaged over 100ms). 5) If the final product is designed for use in any other situation except in motor vehicles or on aircraft, it can be operated with a maximum duty cycle of 40% (averaged over 100ms) 6) If the final product is designed for use in motor vehicles or on aircraft, it can be operated with a maximum duty cycle of 40% (averaged over 100ms) as long as the final product includes features to prevent continuous operation (as defined in the FCC Rules and Industry Canada Standards). FCC and Industry Canada statements:  This device complies with Part 15 of the FCC Rules and Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.  This device may only be operated using the approved integral antenna.  This device complies with FCC and Industry Canada radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance.  This device must not be co-located or operating in conjunction with any other antenna or transmitter.  Changes or modifications not expressly approved by Microwave Solutions Ltd. may void the user's authority to operate this equipment  In the event that these conditions or the Approved Operating Conditions above cannot be met, then the FCC and Industry Canada certifications are no longer considered valid and the FCC ID and IC Certification Number cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate certification.

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