ALPHAPLUS SERIES FM MODULES. ` • • • • • • • • • • FM Transmitter & Receiver Module Easy to Use ‘Plug and Play’ Available as 433 or 868MHz Transmit Range up to 300m Miniature Package Data Rate up to 9600bps 2.5 – 5Vdc Operating Voltage No Adjustable Components EMC Compliant , Operates from -35 to +80oC Applications • • • • • • Wireless Security Systems Car Alarms Remote Gate Controls Remote Sensing Data Capture Sensor Reporting Introduction The AlphaPlus Modules are an easy plug and play Radio solution .They provide an extremely cost effective but high performance Radio link. Supplied in a miniature package these modules can Transmit/Receive at upto 9.6Kbps at upto 300m range. Operating from a nominal 3V, both transmitter and receiver monitor their battery voltage and can sleep with very low standby current. These Modules will suit one to one multi-node wireless links in applications including car and building security, POS and inventory tracking, remote process monitoring. Part Numbers Part Number ALPHAPLUS-TX433 ALPHAPLUS-RX433 ALPHAPLUS-TX868 ALPHAPLUS-RX868 DSALPHAPLUS-2 Oct 10 Description FM Transmitter Module, 433MHz FM Receiver Module, 433MHz FM Transmitter Module, 868MHz FM Receiver Module, 868MHz ©2010 Reg. No. 227 4001, England Page 1 ALPHAPLUS SERIES FM MODULES. Transmitter Mechanical Details Connections Vcc Data GND - Supply Voltage Signal In 0V Supply Voltage Transmitter Pin Description DSALPHAPLUS-2 Oct 10 ©2010 Reg. No. 227 4001, England Page 2 ALPHAPLUS SERIES FM MODULES. Receiver Mechanical Dimensions Connections Vcc Data GND Enable Input - Supply Voltage Signal Out 0V Supply Voltage when set ‘high’ receiver is active When set ‘Low’ receiver is in lower power Sleep mode *Please Note: It is recommended to keep ENABLE pin low on power up, and then active it after module initialization* DSALPHAPLUS-2 Oct 10 ©2010 Reg. No. 227 4001, England Page 3 ALPHAPLUS SERIES FM MODULES. Technical Specifications DC Characteristics Min Typ Max Unit Voltage 2.5 3 5 V Temperature -35 Data rate 600 Performance Vcc =3V Temp = 25oC o 80 4800 C 9600 bps ALPHAPLUS-433 ALPHAPLUS-868 Unit 434 869 MHz 6 4 dBm Transmitter Current Typ Sleep Mode 30 <1uA 31 <1uA mA Receiver Sensitivity (typ) -109 -105 dBm 10mA <1uA 11.5mA <1uA 240 160 Frequency Typical output power Receiver Current Typical Sleep Mode Reliable Range M*** *** 1.open space 2.antenna is 2metres above ground Prototyping Hints It is essential when building any Low Power Radio System that you have a ‘clean’ DC power source. Typically the ripple voltage should be less than 10mV Peak to Peak. Normally a 470uF decoupling capacitor is sufficient de-coupling for an AC derived DC power source. Small capacitors of 10-100nF can also be used across the power supply to filter high frequency noise. Never place a Transmitter or Receiver directly into Vero-Board or any similar prototyping board. This will severely restrict the range. Rather, use small lengths of wire from the prototyping board to the pins of the Transmitter or Receiver. A useful antenna, for testing purposes, for both the Transmitter and Receiver on 433MHz is to use a piece of wire 17.3cm long (23.8cm at 315MHz) soldered directly to the antenna pin. Data should be encoded before it is transmitted over a wireless link to ensure reliability and reduce the effect of interference and cross talk. A range of encoders IC’s are available from RF Solutions, please refer to the RF Solutions website for further information. Information contained in this document is believed to be accurate, however no representation or warranty is given and no liability is assumed by Quasar (UK) Ltd. with respect to the accuracy of such information. Use of products as critical components in life support systems is not authorised except with express written approval from Quasar (UK) Ltd. DSALPHAPLUS-2 Oct 10 ©2010 Reg. No. 227 4001, England Page 4 ALPHAPLUS SERIES FM MODULES. For more information or general enquiries, please contact: RF Solutions Ltd., Unit 21, Cliffe Industrial Estate, South Street, Lewes, E Sussex, BN8 6JL. England Tel +44 (0)1273 898 000 Fax +44 (0)1273 480 661 Email: [email protected] http://www.rfsolutions.co.uk Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability with respect to the accuracy of such information. Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd. DSALPHAPLUS-2 Oct 10 ©2010 Reg. No. 227 4001, England Page 5