DSQFM-TX1-1 March 07
?007 Quasar (UK) Ltd.
Page 1
FM TRANSMITTER MODULE
QFM-TX1
Features
"
Complete RF Transmitter
"
Transmit Range Up To 100m*
"
CMOS / TTL Input
"
No Adjustable Components
"
Very Stable Operating Frequency
"
Low Current Consumption (Typ 15mA)
"
LV TTL Operating Voltage (2.2-3.5v)
"
FSK Modulation
"
Efficient Power Amplifier
Applications
"
Wireless Security Systems
"
Car Alarms
"
Remote Controls
"
Remote Sensing
"
Data Capture
"
Automation systems
Description
The Quasar UK FM hybrid transmitter module provides a complete RF transmitter which can be used to
transmit data at up to 4.8Kbps from any standard CMOS/TTL source.
The module is very simple to operate and offers low current consumption (typ. 15mA). Data can be
supplied directly from a microprocessor or encoding device, thus keeping the component count down
and ensuring a low hardware cost.
The modules are compatible with the Quasar UK Ltd. range of FM receivers to provide a complete
wireless solution.
Typical Application
For further information on this circuit please refer to the RF Solutions Ltd datasheet, DS600.
A0
A1
A2
A3
GND
DATA
LED
Vcc
1
2
3
4
8
RF600E
Vcc
Antenna
QFM-TX1
SW1-4
2
3
1
4
5
6
7
2K2
10K
6
5
Part Numbering
Part Number
Description
QFM-TX1-433
FM Transmitter Module, 433MHz
*
*
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