alphaplus tx datasheet

ALPHAPLUS SERIES FM MODULES.
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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
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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
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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
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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
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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
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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