RECEIVER MODULES. FM-RX2-XXX Datasheet

FM-RX2-XXX MODULES. Datasheet pdf. Equivalent

Part FM-RX2-XXX
Description FM TRANSMITTER & RECEIVER MODULES
Feature FM TRANSMITTER & RECEIVER MODULES. (2ND GENERATION) • MINIATURE PACKAGE • PLUG IN COMPATIBLE WITH FM.
Manufacture rfsolutions
Datasheet
Download FM-RX2-XXX Datasheet




FM-RX2-XXX
FM TRANSMITTER & RECEIVER
MODULES. (2ND GENERATION)
FEATURES
MINIATURE PACKAGE
PLUG IN COMPATIBLE WITH FM-TX1 / RX1
EMC CONFORMANT TO ETS 300-683
TYPE APPROVED TO ETS 300-220
DATA RATES TO 40KBIT/S
www.DataSheet4U.coUmSABLE RANGE TO 300 METRES
418 & 433.92MHZ VERSIONS.
SINGLE SUPPLY VOLTAGE 5V OR 3V
FULLY SCREENED
FM-TX2-XXX
FM-RX2-XXX
Transmitter - TX2
2 STAGE SAW CONTROLLED, FM
MODULATED AT UPTO 40KBIT/S
OPERATION FROM 2.2 TO 6 VOLTS
10mW ON 433.92MHZ (EUROPE) , 1mW ON
418MHZ (UK)
HIGH EFFICIENCY, >15% , DC --> RF
IMPROVED FREQUENCY AND DEVIATION
ACCURACY
2ND HARMONIC, < -60DBC
Receiver - RX2
DOUBLE CONVERSION FM SUPERHET
SAW FRONT END FILTER, IMAGE
REJECTION 50DB
SUPPLY 3.0 TO 6.0 VOLTS @ 13MA
40KBIT/S, -F VERSION , -100 DBM
SENSITIVITY @ 1PPM BER
14KBIT/S. -A VERSION , -107 DBm
SENSITIVITY @ 1PPM BER
LO LEAKAGE, < -60 DBM
Description
The TX2 and RX2 data link modules are a miniature PCB mounting UHF radio transmitter and receiver pair
which enable the simple implementation of a data link at upto 40 Kbit/s at distances upto 75 metres in-building
and 300 metres open ground.
Available for operation at 433.92 MHz in Europe and 418.00 MHz in the U.K., both modules combine full
screening with extensive internal filtering to ensure EMC compliance by minimising spurious radiations and
susceptibilities. The TX2 and RX2 modules will suit one-to-one and multi-node wireless links in applications
including car and building security, EPOS and inventory tracking, remote industrial process monitoring and
computer networking. Because of their small size and low power requirements, both modules are ideal for use
in portable, battery-powered applications such as hand-held terminals.
DS000022 Rev D July ‘99
©1999 REG No 277 4001, ENGLAND.
Page 1



FM-RX2-XXX
FM TRANSMITTER & RECEIVER
MODULES. (2ND GENERATION)
FM-TX2-XXX
FM-RX2-XXX
Functional description:
The TX2 transmitter module is a two stage, SAW controlled FM transmitter operating between
2V and 6V and is available in 433.92MHz and 418.00 MHz versions. The 433.92 MHz unit is
type-approved to ETS 300-220 for European use and delivers nominally +9dBm from a 5V
supply at 12mA, while the 418.00 MHz unit has MPT 1340 type-approval for U.K. use and
delivers -3dBm from a 5V supply at 5mA. Both modules measure 12 x 32 x 3.8 mm.
The RX2 module is a double conversion FM superhet receiver capable of handling date rates of
upto 40kbit/s. The SIL style RX2 receiver measures 17.5 x 48 x 4.5 mm. It will operate from a
supply of 3-6V and draws 14mA when receiving. A fast-acting carrier detect and a power-up
www.DataSheet4U.com enable time of less than 1ms This allows effective duty cycle power saving and a -107 dBm
sensitivity. This, combined with a SAW front-end filter results in an excellent RF performance
and EMC conformance.
TX2 transmitter:
Pin description:
RF GND
(pin 1)
RF ground pin, internally connected to
the module screen and pin 4 (0V). This
pin should be connected to the RF
return path (e.g. coax braid, main PCB
ground plane etc.)
RF out
(pin 2)
50RF output to the antenna, it is DC
isolated internally. (see antenna section
of TX2 applications note for suggested
antenna/feeds).
fig. 1: TX2 block diagram
Vcc (pin 3)
+ve supply pin. The module will generate RF when the Vcc supply is present. Max ripple
content 0.1VP-P. A 100nF de-coupling ceramic capacitor is suggested.
0V (pin 4)
Supply ground connection, connected to pin 1 and screen.
TXD
(pin 5)
This DC coupled modulation input will accept either serial digital data ( 0V to Vcc levels) or
high level linear signals. see TX2 applications note for suggested drive methods. Input
impedance is 100k.
DS000022 Rev D July ‘99
©1999 REG No 277 4001, ENGLAND.
Page 2







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