TXL2-433-9 RADIOMETRIX, TXL2-433-9 Datasheet
TXL2-433-9
Specifications of TXL2-433-9
Related parts for TXL2-433-9
TXL2-433-9 Summary of contents
Page 1
... Receiver sensitivity: -107dBm (for 1% BER) 32 byte data buffer • • Adjacent channel rejection: 60db @ ±320kHz Receiver Blocking: >75dB • Radiometrix Ltd Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233 TX2A/RX2A), automatic noise Figure 1: TXL2-433-9 radio modem transmitter TXL2/RXL2 Data Sheet TXL2/RXL2 page 1 ...
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... Radiometrix Ltd TXL2/RXL2 Data Sheet page 2 ...
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... The TXL2 provides transmit side of a simplex link, but provided no two devices attempt to transmit at one time, no further restrictions on data transmission need be made, as all transmit timing, valid data identification and datastream buffering is conducted by the unit. There is no 'transmit enable' pin. ...
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... Radiometrix Ltd TXL2/RXL2 Data Sheet page 4 ...
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... This unit is compatible with the TXL2 transmitter and the TDL2A transceiver simple addressing structure is included in the datastream. Units may be programmed onto one of eight addresses (all units are supplied set to default addr=0) and one of five RF channels (supplied default is channel=0, 433 ...
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... TXD) 22mA receive/idle - +70 C (Storage - +70 ° ° ° Compliant with ETSI EN 300 220-3 and EN 301 489-3 0.1" pitch SIL pins TXL2 RXL2 10dBm (10mW) ±1dB <4ms 16kbps bi-phase FSK +/-25KHz <-37dBm <-45dBm -107dBm for 1% BER -50dB -65dB -84dB nominal, 75dB worst case < ...
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... In idle (or 'preamble') state, a sequence of the longer cycles is sent (resembling an 8KHz tone). A packet comprises the Synchronising (or address) part, followed by the Data part, made up of twelve Groups (of four half cycles duration). Each Group encodes 2 data bits, so one byte is encoded by 4 Groups. Radiometrix Ltd Figure 6: transmitted and received data TXL2/RXL2 Data Sheet page 7 ...
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... It can be clearly seen that unlike raw radio modules, RXL2 does not output any noise when there is not any transmission. Data fed into the TXD input of a TXL2 transmitter appears at the RXD output of a RXL2 receiver within radio range in the original form it was fed. ...
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... BUSY pin (in RXL2) can be connected to one of the port pins which can generate an interrupt on low-to- high transition (e.g. RB0/INT pin in the PIC). This can be used to enter a receive sub-routine to download data received from remote TXL2. Therefore, the host does not need to wait in a loop for a packet. ...
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... A. Helical antenna C3 B. Loop antenna 16.4cm C. Whip antenna Ordering information The TXL2/RXL2 modems are manufactured in the following variants as standard: Part Number Frequency band TXL2-433-9 433.925 - 434.565 MHz RXL2-433-9 433.925 - 434.565 MHz TXL2-433-4 433.925 - 434.565 MHz RXL2-433-4 433.925 – 434.565 MHz Radiometrix Ltd ...
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... Radiometrix Ltd does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products ...