USER MANUAL MDU2750L FCC-ID: ROO-MDU2750L IC: 10829A-MDU2750L Description The Microwave Solutions MDU2750L Motion Detector Unit is an X-
Band microwave transceiver that utilises the Doppler shift phenomenon to "sense" motion. The unit, contained in a lightweight metal 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 MDU2750L employs low cost surface mount manufacturing techniques which are field proven as being rugged and reliable. Absolute Maximum Ratings Parameter Supply Voltage Operating Temperature Storage Temperature Symbol VCC TOP TSTG Rating
+5.25
-40 to +70
-40 to +80 Units V C C Comment Performance level not guaranteed Electrical Characteristics Parameter Transmit Frequency Temperature Stability Output Power Antenna Beamwidth IF Output Offset Sensitivity Noise Supply Voltage Supply Current Pulse Width Operating Temp Symbol Min. fT f POUT VDC VCC ICC TOP 10.500
-150 4.75 5
-20 Typ. 10.525 12 72 36 0
-83 5.00 22 Units Max. 10.550 GHz MHz 5 dBm mV
+150 dBm V 10 V 5.25 mA 25 s C
+55 Comment Pre-set during manufacture. Over TOP range below EIRP
-3dB, horizontal with tab down
-3dB, vertical with tab down Into free space 10dB S/N ratio In 3Hz 80Hz bandwidth Min. duty cycle 1%
Full specification compliance MDU2750L User Manual.doc Page 1 Coverage Patterns Connections & Mechanical Outline Handling Precautions The MDU2750L 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 MDU2750L 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. MDU2750L User Manual.doc Page 2 OEM Responsibilities Manufacturers of mobile or fixed devices incorporating MDU2750L modules are authorized to use the FCC Grants and IC Certificates of the MDU2750L 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 MDU2750L 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-MDU2750L" and "Contains IC: 10829A-MDU2750L". Approved Operating Conditions to meet FCC/IC requirements The MDU2750L 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 2) specified range of +5 0.25 volts under all conditions of AC line voltage irregularities, battery voltages, ambient temperatures and worst case load conditions. If the module is operated under pulsed conditions, the rise and fall times of the power pulse shall be less than 1 s 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 1.2cm is required between the user and the module when operating at 4) 5) 100% duty cycle. If the final product is designed for use in any situation except in motor vehicles or on aircraft the module can be operated with any duty cycle up to and including 100%. If the final product is designed for use in motor vehicles or on aircraft, the module can be operated continuously with a maximum duty cycle of 25.8% (averaged over 100ms) or with any duty cycle up to and including 100% (averaged over 100ms) if 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. MDU2750L User Manual.doc Page 3