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PDF RX2G Data sheet ( Hoja de datos )

Número de pieza RX2G
Descripción UHF FM Data Transmitter and Receiver Modules
Fabricantes Radiometrix　
Logotipo Radiometrix Logotipo



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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
TX2A/RX2G
Issue 3, 13 November 2012
UHF FM Data Transmitter and Receiver Modules
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.
Features
 Designed for compliance with EN 300
220-3 (radio) and EN 301 489-3 (EMC) standards
Figure 1: RX2G-433-15 & TX2A-433-64
 Data rates up to 128kbps
 Usable range up to 300m
 Versions available on 433.92MHz, 434.42MHz and 434.525MHz
 Fully screened
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
 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
Receiver - RX2G
 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
Evaluation platforms: Universal Evaluation Kit, NBEK + SIL carrier
Radiometrix Ltd, TX2A/RX2G Data Sheet
page 1

1 page




RX2G pdf
Performance specifications: RX2G
(Vcc = 5.0V / temperature = 20 °C unless stated)
pin min. typ. max. units
notes
DC supply
Supply voltage
5 4.5 5.0 5.5 V
Supply voltage (regulator ver.)
5
4.5 5.0 16
V
Supply current
5 9 15 18 mA
1
RF/ IF
RF sensitivity for 10dB (S+N/N)
RF sensitivity for 1ppm BER
RF sensitivity for 1ppm BER
RSSI range
IF bandwidth
Image rejection
IF rejection (10.7MHz)
LO leakage, conducted
1,2
1,2
1,2
1,2
-
1
1
1
- -113 - dBm
- -108 - dBm
- -102 - dBm
- 50 - dB
- 180 - kHz
50 54 - dB
100 -
- dB
-
-125
-110
dBm
15kbps
64kbps
Baseband
Baseband bandwidth @ -3dB
8
0
- 7.8 kHz 15kbps version
Baseband bandwidth @ -3dB
8
0
- 50 kHz 64kbps version
AF level
DC offset on AF out
8 200 250 350 mVP-P
8 1.5 2 2.5 V
2
3
Distortion on recovered AF
8 - 1 5%
3
Load capacitance, AFout/RXD
3,8
-
- 100 pF
DYNAMIC TIMING
Power up with signal present
Power up to valid RSSI
3,5 - 0.5 1 ms
Power up to stable data
3,9 -
2 10 ms 3, 15kbps
3,9 10 ms 3, 15kbps, DS
Power up to stable data
3,9 -
2 10 ms 3, 64kbps
3,9 10 ms 3, 64kbps, DS
Power up to stable data
3,9
3
ms 3, 128kbps
Signal applied with supply on
RSSI response time (rise/fall)
Signal to stable data
Signal to stable data
Signal to stable data
1,5
1,9
1,9
1,9
1,9
1,9
- 100 -
µs
- 0.5 1 ms 3, 15kbps
5 ms 3, 15kbps, DS
- 0.2 0.5 ms 3, 64kbps
1.5 ms 3, 64kbps, DS
0.75
ms 128kbps
Time between data transitions
Time between data transitions
Mark:space ratio
9 0.0667
1.5 ms
4, 15kbps
0.0667
75 ms 4, 15kbps DS
9 0.0156
0.2 ms
4, 64kbps
0.0156
3 ms 4, 64kbps DS
9 20 50 80 %
5
Notes:
1. Current increases at higher RF input levels (>-20dBm and above).
2. 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
page 5

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