K-LC5.pdf 데이터시트 (총 5 페이지) - 파일 다운로드 K-LC5 데이타시트 다운로드

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K-LC5 RADAR TRANSCEIVER
Features
24 GHz short range transceiver
Beam aperture 80°/34°
Pin-compatible with K-LC2
150 MHz typical sweep rate
High sensitive LNA receiver
More than double K-LC2 sensitivity
I/Q IF outputs
Low cost design
Compact size: 25mm x 25mm x 6mm
Datasheet
Applications
Security systems
Directional object speed measurement systems
Directional movement detectors
Ranging of moving objects
Industrial sensors
Description
K-LC5 is an extended range dual channel
Doppler Radar module with an asymmetrical
beam for short distance sensors. It is ideally
suited for person movement sensors.
Dual IF I and Q allow movement direction
detection and high performance signal
processing. FM input allows FSK ranging
applications.
An extremely slim construction with only 6mm
depth gives you maximum flexibility in your
equipment design.
Powerful starterkits with signal conditioning
and visualization are also available. (see
www.rfbeam.ch Download Section)
Blockdiagram
Tx Rx
LNA
VCO 24 GHz
I
Q
FM Input
Fig. 1: K-LC5 Blockdiagram
© RFbeam Microwave GmbH, Schuppisstrasse 7, CH-9016 St. Gallen
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K-LC5 RADAR TRANSCEIVER
Datasheet
Characteristics
Parameter
Operating conditions
Supply voltage
Supply current
VCO input voltage
VCO pin resistance
Operating temperature
Storage temperature
Transmitter
Transmitter frequency
Frequency drift vs temp.
Frequency tuning range
VCO sensitivity
VCO Modulation Bandwidth
Output power
Turn-on Time
Spurious emission
Receiver
Antenna gain
LNA gain
Mixer Conversion loss
Receiver sensitivity
Overall sensitivity
IF output
IF output impedance
I/Q amplitude balance
I/Q phase shift
IF frequency range
IF noise voltage
IF output offset voltage
Supply rejection
Conditions / Notes
Driving voltage source Note 1
Tamb=-20°C .. +60°C
Vcc=5.0V, -20°C .. +60°C Note 2
EIRP
Until oscillator stable ΔfTX < 5MHz
According to ETSI 300 440
FTX=24.125GHz Note 3
FRX=24.125GHz
fIF =1kHz, IF load 1k
fIF =500Hz, B=1kHz, S/N=6dB, RLOAD
fIF =500Hz, B=1kHz, S/N=6dB
fIF =500Hz
fIF =500Hz
-3dB Bandwidth
fIF =500Hz
fIF =500Hz
Rejection supply pins to outputs, 500Hz
Symbol Min Typ Max Unit
Vcc 4.75 5.0 5.25 V
Icc 50 65 mA
Uvco -0.5
2.0 V
Rvco 570
Top -20
+80 °C
Tst -20
+80 °C
fTX
fTX
fvco
Svco
BVCO
PTX
Pspur
24.050
+12
24.150
-1.0
150
-80
3
+15
1
24.250 GHz
MHz/°C
MHz
MHz/V
MHz
+19 dBm
1.5 µs
-30 dBm
GAnt
GLNA
Dmixer
PRX
Dsystem
8.6
10
-9
-103
-118
dBi
dB
dB
dBm
dBc
RIF
UIF
fIF
UIFnoise
UIFnoise
Uos
Dsupply
50
3 dB
80 90 100 °
0 50 MHz
45 nV/Hz
-147
dBV/Hz
-0.2 +0.2 V
-25 dB
Antenna
Horizontal -3dB beamwidth
Vertical -3dB beamwidth
Horiz. sidelobe suppression
Vert. sidelobe suppression
E-Plane
H-Plane
W80
W34
D-12 -20
D-12 -20
°
°
dB
dB
Body
Outline Dimensions
connector left unconnected
25 x 25 x 6
mm3
Weight
4g
Connector
5 pins
Note 1 The VCO input has an internal voltage source with approx. 0.9VDC. For driving this pin it is necessary to source and
sink current
Note 2 Transmit frequency stays within 24.050 to 24.250GHz over the specified temperature
Note 3 Theoretical value, given by design
© RFbeam Microwave GmbH, Schuppisstrasse 7, CH-9016 St. Gallen
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K-LC5 RADAR TRANSCEIVER
Datasheet
Antenna System Diagram
This diagram shows module sensitivity (output voltage) in both azimuth and elevation directions. It
incorporates the transmitter and receiver antenna characteristics.
Azimuth 34° , Elevation 80°
At IF output voltage -6dB
(corresponds to -3dB Tx power)
Fig. 2: Antenna system diagram (logarithmic scale)
Pin Configuration
K-LC5
Pin Description Typical use
1 IF output Q 1k load
2 VCC
5V supply
3 IF output I
1k load
4 GND
0V supply
5 VCO In
Open = f0
K-LC5-v2
Pin Description Typical use
1 IF output Q 1k load
2 VCC
5V supply
3 IF output I
4 GND
1k load
0V supply
Pin 1
5 IF output Q tied to pin 1
Please note:
K-LC5-v2 does not include a VCO.
Pin 1 and 5 are tied together
Do not touch open connector pins. RFbeam K-LC5 radar module is susceptible to
electrical discharge as long as it is not placed in the circuit.
© RFbeam Microwave GmbH, Schuppisstrasse 7, CH-9016 St. Gallen
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K-LC5 RADAR TRANSCEIVER
Outline Dimensions
Datasheet
Fig. 3: Mechanical dimensions
Application Notes
Sensitivity and Maximum Range
The values indicated here are intended to give you a 'feeling' of the attainable detection range with this
module. It is not possible to define an exact RCS (radar cross section) value of real objects because
reflectivity depends on many parameters. The RCS variations however influence the maximum range
only by 4 .
Maximum range for Doppler movement depends mainly on:
- Module sensitivity
S:
- Carrier frequency
f0:
- Radar cross section RCS ("reflectivity") of the object 1):
-118dBc (@1kHz IF Bandwidth)
24.125GHz
1m2 approx. for a moving person
>50m2 for a moving car
note 1) RCS indications are very inaccurate and may vary by factors of 10 and more.
The famous "Radar Equation" may be reduced for our K-band module to the following relation:
s
r 0.0167 1040 4
Using this formula, you get an indicative detection range of
- > 15 meters for a moving person
- > 40 meters for a moving car
Please note, that range values also highly depend on the performance of signal processing,
environment conditions (i.e. rain, fog), housing of the module and other factors.
By reducing IF amplifier bandwidth, detection range can be enhanced. With BW=250Hz instead of
1kHz, sensitivity will raise by 6dB to -124dBc. Maximum range will then become 21m.
You may achieve maximum range of more than 30m when using high resolution AD-converters and
selective FFT algorithms.
© RFbeam Microwave GmbH, Schuppisstrasse 7, CH-9016 St. Gallen
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K-LC5 RADAR TRANSCEIVER
Datasheet
EC-Declaration of Conformity
This product complies with the essential requirements of the RED Directive 2014/53/EU, and can be
used in all countries within Europe.
Datasheet Revision History
Version
1.0
2.0
2.1
2.2
Date
25-April-2012
06 Sep-2012
24 Aug 2017
25 Okt 2017
Changes
initial release
K-LC5 standard contains a VCO.
K-LC5-v2 does not contain a VCO
New module picture page 1, Directive 2014/53/EUR and full address
added
New module picture page 1, typing error in address corrected
RFbeam does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
RFbeam reserves the right at any time without notice to change said circuitry and specifications.
© RFbeam Microwave GmbH, Schuppisstrasse 7, CH-9016 St. Gallen
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