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RX2G Dataheets PDF



Part Number RX2G
Manufacturers Radiometrix
Logo Radiometrix
Description UHF FM Data Transmitter and Receiver Modules
Datasheet RX2G DatasheetRX2G Datasheet (PDF)

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 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. Issue 3, 13 November 2012 UHF FM Data Transmitter and Receiver Module.

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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 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. Issue 3, 13 November 2012 UHF FM Data Transmitter and Receiver Modules Features  Designed for compliance with EN 300 Figure 1: RX2G-433-15 & TX2A-433-64 220-3 (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 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 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 32 x 12 x 3.8 mm. The RX2G module is a single conversion FM superhet receiver capable of handling data rates of up to 64kbps. RX2G needs a regulated 5V supply and draws 10mA when receiving. The RX2G features a fast power-up time for effective duty cycle power saving and a signal strength (RSSI) output with 50dB of range. Full screening and a SAW front-end filter give good immunity to interference. The SIL style RX2G measures 48 x 17.5 x 4.5 mm excluding the pins. TX2A transmitter supply regulator 5 2.2 -- 16V 2 RF out 433.92 MHz band pass filter buffer VCO 32 Loop Filter  4 En ref osc 35kHz LPF 7 TXD 3 RF gnd 1 6 0V Fig. 2: TX2A block diagram 3.8 mm Pin description: RF GND (pins 1&3) RF ground, internally connected to the module screen and pin 6 (0V). These pins should be directly connected to the RF return path - e.g. coax braid, main PCB ground plane etc. RF OUT (pin 2) 50 RF output to the antenna. Internally DCisolated. See antenna section of apps notes for details of suitable antennas. En (pin 4) Tx enable. <0.15V shuts down module (current <1A). >1.7V enables the transmitter. Impedance ~1M. Observe slew rate requirements (see apps notes). 12.0 mm 32 mm TX2A 12.5 mm Radiometrix PCB level 15.24 mm 1 2 3 4 5 6 7 1 = RF GND 2 = RF OUT 3 = RF GND 4 = En 5 = Vcc 6 = 0V 7 = TXD 7 holes, 0.7 mm dia, pin spacing 2.54 mm Fig 3: TX2A physical dimensions Vcc (pin 5) +2.2V to +16V DC supply. Max ripple content 0.1VP-P. Decoupling is not generally required. 0V (pin 6) DC supply ground. Internally connected to pins 1 & 3 and module screen. TXD (pin 7) DC-coupled modulation input. Accepts serial digital data at 0V to 2.5V levels. See applications notes for suggested drive methods. Input is high impedance (>100k). Notes: 1. The 3V and 5V supply variant TX2As intended for direct replacement to our SAW based TX2 modules and do not have internal regulator. They also have identical pin out as of TX2, hence lack pin 3 (GND) and pin 4 (Enable). 2. The TXD input of 3V and 5V versions require serial digital data at 0-Vcc levels. i.e. 0-3V and 0-5V respectively Radiometrix Ltd, TX2A/RX2G Data Sheet page 2 RX2G receiver Pin description RF IN (pin 1) 50 input from the antenna, DC isolated. RF GND (pin 2) RF ground pins, internally connected to the module screen and pin 6 (0V). This pin should be connected to the RF return path (coax braid, main PCB ground plane etc.) RF GND (pin 3) Not fitted on non-regulator 5V variant Fig 4: physical dimensions & pin outs En (Regulator version) (pin 4) Rx enable. <0.15V shuts down module (curren.


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