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PDF LMT3 Data sheet ( Hoja de datos )
| Número de pieza | LMT3 | |
| Descripción | NBFM Multi-channel transmitter | |
| Fabricantes | Radiometrix | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMT3 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
LMT3
Issue 1, 22 January 2013
NBFM Multi-channel transmitter for 868MHz SRD band
The LMT3 is a 25kHz channel narrowband
multichannel transmitter offering up to 25mW RF
power. LMT3 can be paired with the Category 1
compliant receiver intended for European 869.2-
869.25MHz Social Alarm application. It can also be
used for any 868 - 870MHz band Non-Specific SRD
applications. The module offers a low power,
reliable data link in an industry-standard pin out and
footprint.
Figure 1: LMT3 transmitter
Features
Conforms to EN 300 220-3 and EN 301 489-3
PLL synthesizer with TCXO
Data rates up to 5 kbps for standard module
Usable range over 500m @ 25mW
Fully screened, Low profile
Low power requirements
Applications
Social Alarm
Handheld terminals
EPOS equipment, barcode scanners
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
DGPS systems
Vehicle data up/download
Heavy vehicle/machinery controls
Technical Summary
Social Alarm frequencies: CH0: 869.2125MHz, CH1: 869.2375MHz
Custom frequency within 865MHz - 870MHz
32 channels
Transmit power: +10dBm (10mW) / +14dBm (25mW)
Supply range: 3.1 – 15V (TX @ 10mW), 4.1 – 15V (TX @ 25mW)
Current consumption: 34mA @ 10mW, 68mA @ 25mW
Data bit rate: 5kbps max. (standard module)
Serial configuration by inverted RS232 at 3V CMOS level
Evaluation platforms: NBEK + LM Series carrier
Matching receiver: COR3-869-5
Radiometrix Ltd
LMT3 Data Sheet
page 1
1 page  
Condensed specifications
Frequency
Frequency stability
Channel spacing
Number of channels
Social Alarm (SAL) variant: CH0: 869.2125MHz, CH1: 869.2375MHz
User customisable frequencies: 865MHz – 870MHz
±1.5kHz
25kHz
16 channels controlled by parallel port
or 32 via RS232 interface
Operating temperature
Spurious radiations
-10 ºC to +60 ºC (Storage -30 ºC to +70 ºC)
Compliant with ETSI EN 300 220-3 and EN 301 489-3
Transmitter
Output power
Peak deviation
TX on switching time
Modulation type
TX modulation bandwidth
Adjacent channel TX power
TX spurious
Supply
Voltage
Current
Inputs
Size
Interface
User
RF
Recommended PCB hole size
+10dBm (10mW) ±1dB
+14dBm (25mW) ±1dB
±3kHz
30ms from TXE transition
FSK (F3D)
DC – 5kHz (3V CMOS compatible)
<-37dBm
<-45dBm (no RF output in Standby)
3.1V – 15V (10mW)
4.1 – 15V (25mW)
34mA @ 10mW (nominal)
68mA @ 25mW (nominal)
<5µA standby (TXE high or floating)
data (CMOS/TTL compatible)
33 x 23 x 9mm
10 (8) pin 0.1" pitch dual row (5+5) header
2pin 0.1” pitch
1.2mm
Ordering Information:
Part No.
LMT3-869.2125-5
LMT3-869-5-SAL
LMT3-869-5
LMT3-869-5-25mW
Frequency
(MHz)
869.2125
869.200 - 869.250
868 - 870
868 - 870
RF power
(mW)
10
10
10
25
Channel spacing
(kHz)
25
25
25
25
5
5
5
5
Data rate
(kbps)
Matching COR3 receiver
Part Number
Frequency
COR3-869.2125-5-H
869.2125MHz
COR3-869-5-SAL
869.2-869.25MHz
COR3-869-5-SAL-H
869.2-869.25MHz
COR3-869-5
868-870MHz
Module mounting
Horizontal Mounting,
Perpendicular pins
Vertical Mounting,
Parallel pins
Horizontal Mounting,
Perpendicular pins
Vertical Mounting,
Parallel pins
Pins
RF, RFGND, RSSI, GND, VCC, AF, RXD
RF, RFGND, RSSI, GND, VCC, AF, RXD
P0/PGM
RF, RFGND, RSSI, GND, VCC, AF, RXD
P0/PGM
RF, RFGND, RSSI, GND, VCC, AF, RXD
P3, P2, P1, P0/PGM
Radiometrix Ltd
LMT3 Data Sheet
page 5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LMT3.PDF ] | |
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