New MDU2750LCM

MDU2750LCM

The Microwave Solutions MDU2750LCM Motion Detector Unit is a low power X-Band microwave transceiver that utilises the Doppler shift phenomenon to "sense" motion. The reduced current consumption enables the use of this module in battery powered applications (with suitable duty cycle management). These modules are optimised for Ceiling Mount applications.
£20.00

In stockAvailability: In stock


Details

The Microwave Solutions MDU2750LCM Motion Detector Unit is a low power X-Band microwave transceiver that utilises the Doppler shift phenomenon to "sense" motion. The reduced current consumption enables the use of this module in battery powered applications (with suitable duty cycle management). These modules are optimised for Ceiling Mount applications.

The unit, contained in a cast 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.

This module family is available with either a +3V or +5V supply voltage.


Additional Information

Introduction

Operation

The basic principle of operation consists of detecting the frequency shift between a transmitted and a received signal refelected back from a moving object within the field of view of the unit. 

 

Key Features

  • Low Current
  • Low Cost
  • High Sensitivity
  • High Stability
  • Ceiling Mount
  • Small and Flat Profile
  • Rugged Reliable Construction
  • 3V and 5V versions available
  • RoHS Compliant
  • Meets EN300 440 & FCC 15.245

 

Applications

  • Intrusion Alarms (Rooms, vehicles)
  • Automatic Door Openers
  • Speed Measurement
  • Collision Avoidance
  • Traffic Control, Prssence Sensing
Characteristics

Electrical Characteristics

Transmitter

 

Frequency See available modules tab
Frequency Setting Accuracy 3 MHz
Power Output (Min.) 9 dBm EIRP
Operating Voltage +5 V ± 0.25 V (C920***)
  +3 V ± 0.15 V (C920***)
Operating Current (CW) 25mA (max)
  22mA (typ)
Harmonic Emissions <-30dBm



Pulse Mode Operation

 

Average Current (5% DC) 1 mA typ.
Pulse Width (Min.) 5 μsecs
Duty Cycle (Min.) 1%



Receiver (Bandwidth DC - ~3KHz)

 

Sensitivity (10dB S/N ration) -77 dBm (C920***)
  -76 dBm (C923***)
 Noise  <10μV



Antenna: Standard

 

Gain 5 dBi
-3 dB Beamwidth  
E Plane 72o
H Plane 72o

 


Mechanical Characteristics

 

Weight 16g
Tab Connections 0.1" spacing
Metallisation Sn+Ni+Cu
  JEDEC JESD97 (e2)



Environmental Characteristics

 

RoHS Compliant  
Power/Temp. Coefficient (over operating temp. range) 3 dB
Frequency/Temp. Coefficient (over operating temp. range) 5 MHz
Operating Temperature -20°C to +55°C
Storage Temperature -40°C to +80°C



Available Modules
Country Frequency Product Code
UK 10.587 GHz (5V) C920209
USA, Belgium, Holland, Italy,   10.525 GHz (5V) C920210
UK 10.587 GHz (3V) C923209
USA, Belgium, Holland, Italy,   10.525 GHz (3V) C923210
Coverage Pattern
Outline Drawing

You can view the full outline drawing here