PLANAR TRANSCEIVERS TM MDU1420 Series ® Features Low cost Small and Flat Profile Rugged, Reliable Construction Low Power Consumption High Sensitivity Meets FCC Part 15 reqts. Description The MDU (Motion Detector Unit) is an X-Band microwave transceiver that utilizes the Doppler shift phenomenon to "sense" motion. The unit consists of a circuit board with a lightweight plastic housing. The circuit features a dielectric resonator stabilized 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. Applications Intrusion Alarms (Room, Vehicle) Automatic Door Openers Speed Measurement Collision Avoidance Traffic Control Presence Sensing This document only gives a general description of the product and shall not form part of any contract. Microwave Solutions pursue a policy of continuous product improvement and reserve the right from time to time to amend the specifications of products. Copyright 2008 Rev: 2009-02-10 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 1 PLANAR TRANSCEIVERS MDU1420 Series ® TM Operation 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 IF output signal which can be amplified and processed to provide an audible or visual alarm signal and employs low cost surface mount manufacturing techniques which are field proven as being rugged and reliable. Electrical Characteristics Transmitter Frequency Frequency Setting Accuracy Power Output (Min.) Operating Voltage Operating Current (CW) Harmonic Emissions Pulse Mode Operation Average Current (5% DC) Width (Min.) Cycle (Min.) Receiver Sensitivity (10dB S/N ratio) 3Hz to 80Hz bandwidth) Antenna Gain -3dB Beamwidth H Plane E Plane Mechanical Characteristics Weight Tab Connections Model MDU1420 Copyright 2008 Rev: 2009-02-10 : : : : : : : see table 3MHz 13dBm EIRP +5V ±0.25V 60mA max. 45mA typ. < -7.3dBm : : : 2mA typ. Pulse 5µSec Duty 1% : : -86dBm Noise 10µV (Both in : Environmental Characteristics Power/Temp. Coefficient (over operating temp. range) : 3dB Frequency/Temp. Coefficient (over operating temp. range) : 6.5MHz Operating Temperature : -10ºC to +55ºC Storage Temperature : -30ºC to +70ºC NOTES Detection range is dependent on size and reflectivity of target and S/N ratio Doppler shift at 10.525GHz is 31Hz/m.p.h. Unit functions over -30ºC to +70ºC but performance may be degraded above +55C. Outline Drawing 8dBi :36deg :72deg : : 9grams 0.1” spacing Application Order Code USA,CANADA, ETC C910605 C910603 C910606 Frequency 10.515GHz 10.525Ghz 10.535GHz Comments USA FCC Part 15 Indoors Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 2