Data Sheet

© RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LD7 | data sheet 12 / 2020 – Revision B | Page 2 / 23
Characteristics
Parameter Conditions / Notes Symbol Min Typ Max Unit
Operating Conditions
Supply voltage V
cc
3.2 5.5 V
RMS current Depending on speed range setting I
cc
20 60 mA
Peak current At start-up I
pp
116 200 mA
Operating temperature T
Op
-40 +85 °C
Storage temperature T
St
-40 +105 °C
Relative humidity Non-condensing, given by design RH 10 90 %
Transmitter
Transmitter frequency T
amb
= -40 ° C .. + 85 ° C f
TX
24.050 24.250 GHz
Frequency drift vs. temperature ∆f
TX
0.6 MHz/°C
Output power EIRP P
TX
6 10 dBm
Spurious emissions According to ETSI 300 440 P
spur
-30 dBm
Receiver
LNA gain G
LNA
19 dB
Mixer conversion loss f
IF
= 1kHz D
mixer
10 dB
Antenna gain f
TX
= 24.15 GHz G
Ant
8.6 dBi
Receiver sensitivity f
IF
= 500 Hz, B = 1 kHz, S / N = 6 dB P
RX
-112 dBm
Overall sensitivity f
IF
= 500 Hz, B = 1 kHz, S / N = 6 dB D
system
-127 dBc
Detection distance
σ = 1 m
2
(Person)
R 15 m
Signal Processing
Modulation FSK
Velocity processing 256 point complex FFT
Speed range Max value adjustable r
speed
0.1 100 km/h
Speed resolution Depending on speed range setting ∆r
speed
0.1 0.8 km/h
Distance range Max value adjustable r
distance
0.005 100 m
Distance resolution Depending on distance range setting ∆r
distance
5 100 cm
Angular resolution ∆r
angle
1 deg
Tracking range Limited to one target r
tracking
0.005 30 m
Antenna
Horizontal –3dB beam width E-Plane
W
φ
80 °
Vertical –3dB beam width H-Plane
W
θ
34 °
Horiz. side lobe suppression
D
φ
-12 -20 dB
Vertical side lobe suppression D
θ
-12 -20 dB
Rx1 / Rx2 spacing l 6.223 mm
Interface
Digital output high level voltage V
OH@8mA
2.4 3 V
Digital output low level voltage V
OL@8mA
0 0.4 V
Digital output high level voltage V
OH@20mA
1.7 3 V
Digital output low level voltage V
OL@20mA
0 1.3 V
Digital input high level voltage V
IH
1.7 4 V
Digital input low level voltage V
IL
-0.3 1.3 V
Digital I/O source/sink current I
OH
, I
OL
-20 20 mA
Body
Outline dimensions 37 × 25 × 13.5 mm³
Weight 5 g
Connector 3pin 2.54mm / 8pin 2.54mm
ESD rating
Electrostatic discharge Human body model class 2 V
ESD
2000 V