SUZHOULZYTECHNOLOGYCO.,LTD DMM324 User Manual 1.Features Based on 24GHzISM StandardsDoppler Microwave The range of Transmit Power is applicableto worldwide standards Low power consumption, Operating Voltage: 5V Page1of6 Average Current: 33mA Small size, 30mm(L)* 30mm(W)* 12mm(H) Detectiondistance is adjustable between 0.1m and 4m 2.Description The 24GHz Microwave Moduleis a K-band moving detection radar production within intelligent decision unit, used for detecting the moving objects with the speeds ranging from 0.05m/s to 7m/s, and the detectiondistance is adjustable between 0.1m and 4m. The device widely used in many fields such as Automatic control, Human detection with features including high sensitivity, low cost,low power consumption and small size. Page2of6 Table of Contents 1. Specifications............................................................................................................................4 ElectricalCharacteristics:..................................................................................................................4 2. 3. 4. DetectionArea..........................................................................................................................4 Interface....................................................................................................................................6 InterfereFactorsCaution..........................................................................................................6 Page3of6 24G Microwave Module 1. Specifications Electrical Characteristics:
Parameter Tx Frequency Field Strength Detection Distance Symbol f0 Pout Dr Min 10%
TYP 24.125 85.69 Unit GHz dBV/m Max
10%
Notes
@3m Detection Distance will change with the panel material and the chamber environment, need to regulate in the actual environment. 2. Detection Area Too many external factors will interfere the signal transmit by the antenna, such as attenuation caused by going through air, plastic;
metal reflection and shielding; paint or colorant absorption. These factors all will have a negative effect on detection Area, therefore, in ideal situation, the detection area as below:
Page4of6 24G Microwave Module Page5of6 24G Microwave Module 3. Interface This module use the TJC4interface:
NO. PIN NOTE A/D GND GND 4 3 En Enable H/L Level Output Out 2 1 VCC 5V Power Supply Interface Pin I/O I I O I 4. Interfere Factors Caution The radar signal is easily disturbed by fluorescent lamp, metal leaf fan, vibration, should avoid them when using it. The antenna Tx surface cannot be shielded and reflected by metal, graphite glass, and also should consider the attenuation when using plastic or glass. Note : the device is used within a building . FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This device complies with part 15 of the FCC Rules. 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. Page6of6