Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Issue 1, 01 November 2004
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
TX3A & RX3A
UHF FM Data Transmitter and Receiver Modules
European versions: TX3A-869-64/RX3A-869-xx
USA versions:
TX3A-914-64/RX3A-914-xx
Data speed options (-xx) : -10 (10kbps), -64 (64kbps)
The TX3A & RX3A are miniature UHF
radio transmitter & receiver modules
designed
for
PCB
mounting.
They
facilitate the simple implementation of
data links at speeds up to 64kbps and
distances up to 75m in-building or 300m
over open ground.
TX3A Transmitter
RX3A Receiver
Features:
Frequencies available as standard: 869.85MHz, 914.5MHz
CE certified by independent Notified Body
Verified to comply with Radio standard EN 300 220-3 by accredited Test Laboratory
Verified to comply with EMC standard EN 301 489-3 by accredited Test Laboratory
North American version conforms to FCC part 15.249
Data rates up to 64kbps
Fully screened
Available for operation in the 868-870MHz band in Europe and the 902–928MHz band in
North America, both modules combine full screening with internal filtering to ensure EMC
compliance by minimising spurious radiation and susceptibility. The TX3A & RX3A will suit
one-to-one and multi-node wireless links in such applications as car and building security,
EPOS and inventory tracking, remote industrial process monitoring and data networks.
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.
Transmitter – TX3A
Crystal-locked PLL, FM modulated at up to 64 kb/s
Operation from 2.2V to 16V @ 7.5mA
Built-in regulator for improved stability and supply noise rejection
1mW nominal RF output
Enable facility
Receiver – RX3A
Single conversion FM superhet with SAW front end filter
Operation from 2.7V to 16V @ 11mA
Built-in regulator for improved stability and supply noise rejection
-100dBm sensitivity @ 1ppm BER, 64kb/s version
-107dBm sensitivity @ 1ppm BER, 10kb/s version
RSSI output with 60dB range
Enable facility
Extremely low LO leakage, -120dBm typical
Radiometrix Ltd, TX3A & RX3A Data Sheet
page 1
RADIOMETRIX [ RADIOMETRIX LTD ]
