TX2A RADIOMETRIX [Radiometrix Ltd], TX2A Datasheet

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TX2A

Manufacturer Part Number
TX2A
Description
UHF FM Data Transmitter and Receiver Modules
Manufacturer
RADIOMETRIX [Radiometrix Ltd]
Datasheet
The TX2A and RX2G data radio modules
are PLL synthesiser based miniature
PCB mounting UHF radio transmitter
and receiver pair which enable the
simple implementation of a wireless
data link at up to 64 kbps at distances
up to 75 metres in-building and 300
metres open ground.
UHF FM Data Transmitter and Receiver Modules
Features
Available for operation at 433.92MHz or 434.42MHz in the UK and Europe, both modules combine full
screening with extensive internal filtering to ensure EMC compliance by minimising spurious radiations and
susceptibilities. The TX2A and RX2G 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.
Technical Summary
Transmitter - TX2A
Receiver - RX2G
Evaluation
Radiometrix Ltd, TX2A/RX2G Data Sheet
TX2A/RX2G
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Designed for compliance with EN 300
220-3 (radio) and EN 301 489-3 (EMC) standards
Data rates up to 128kbps
Usable range up to 300m
Versions available on 433.92MHz, 434.42MHz and 434.525MHz
Fully screened
Crystal-locked PLL, FM modulated at up to 64 Kbps
Operation from 2.2V to 16V (Dependent on version)
+10dBm on 433.92MHz
High efficiency, >30%, DC to RF
Improved frequency and deviation accuracy
2nd harmonic, > -60dBc
Single conversion FM superhet
SAW front end filter gives >50dB image rejection
Supply: +5V (± 10%) or 5.1 – 16V (regulator version)
Current consumption: 10mA (typ.)
-102dBm sensitivity @ 1ppm BER, 64kbps version
-108dBm sensitivity @ 1ppm BER, 15kbps version
RSSI output with 50dB range
Extremely low LO leakage, -125dBm typical
platforms: Universal Evaluation Kit, NBEK + SIL carrier
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Figure 1: RX2G-433-15 & TX2A-433-64
Issue 3, 13 November 2012
page 1

Related parts for TX2A

TX2A Summary of contents

Page 1

... EMC compliance by minimising spurious radiations and susceptibilities. The TX2A and RX2G 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 ...

Page 2

... Functional description The TX2A transmitter module is a crystal based PLL controlled FM transmitter operating between 2.2V and 16V and is available in 433.92MHz. The TX2A module is type approved to EN 300 220-3 for European use and delivers nominally +10dBm at 11mA. The module measures 3.8 mm. ...

Page 3

... RXD (pin 9) This digital output from the internal data slicer is a squared version of the signal on pin 8 (AF). It may be used to drive external decoders. The data is true data, i.e. as fed to the transmitter. Radiometrix Ltd, TX2A/RX2G Data Sheet Fig 4: physical dimensions & pin outs . p-p (pin 7) ...

Page 4

... FM deviation (+/-) Modulation bandwidth @ -3dB modulation distortion (THD) power up time to full RF Note: 1. Measured into a 50 load. Radiometrix Ltd, TX2A/RX2G Data Sheet -20C to +70C -40C to +100C -0.3V to +16.0V +/- 7V 50V DC 10dBm RF -0.1V to +5.5V -0.1V to +3V ±50V DC, +10dBm RF pin min ...

Page 5

... For received signal with ±30kHz FM deviation. 3. Typical figures are for signal at centre frequency, max. figures are for ±50kHz offset. 4. For 50:50 mark to space ratio (i.e. squarewave). 5. Average over 10ms (15kbps version) or 3ms (64kbps version) at maximum data rate Radiometrix Ltd, TX2A/RX2G Data Sheet pin min. typ. ...

Page 6

... Power supply requirement The standard TX2A module incorporates a built-in regulator which delivers a constant 2.8V to the module circuitry when the external supply voltage is 2.85V or greater, with 40dB or more of supply ripple rejection. This ensures constant performance up to the maximum permitted supply rail and removes the need for external supply decoupling except in cases where the supply rail is extremely poor (ripple/noise content > ...

Page 7

... It is desirable (but not essential) to fill all unused PCB area around the module with ground plane. The module may be potted if required in a viscous compound which cannot enter the screen can. Warning: DO NOT wash the module not hermetically sealed. Radiometrix Ltd, TX2A/RX2G Data Sheet -110 -100 -90 ...

Page 8

... PCB tracks/earth plane. The space around the antenna is as important as the antenna itself Radiometrix Ltd, TX2A/RX2G Data Sheet 0.5 mm enameled copper wire close wound on 3.2 mm diameter former ...

Page 9

... There is a 10% duty cycle restriction on 433.050-434.790 MHz band in most of the EU member states. The TX2A-433 module intended to be incorporated into a wide variety of applications and finished products, Radiometrix has no control over the end use of the TX2A-433.The harmonised band 433.050 to 434 ...

Page 10

Radiometrix Ltd Hartcran House 231 Kenton Lane Harrow, Middlesex HA3 8RP ENGLAND Tel: +44 (0) 20 8909 9595 Fax: +44 (0) 20 8909 2233 sales@radiometrix.com www.radiometrix.com Copyright notice This product data sheet is the original work and copyrighted property of ...

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