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. Vcc Antenna SW1-4 1 2 3 4 A0 Vcc A1 LED A2 DATA A3 GND 8 2 6 3 5 6 1 2K2 7 QFM -TX1 5 4 10K RF600E Part Numbering Part Number Description QFM-TX1-433 FM Transmitter Module, 433MHz *Range stated is for modules used in direct line of sight, adverse conditions may reduce the maximum range. DSQFM-TX1-1 March 07 2007 Quasar (UK) Ltd. Page 1 FM TRANSMITTER MODULE QFM-TX1 Technical Specifications Dimensions Pin A B C D Measurements (mm) 16.802 12.501 2.0 2.5 Pin E F G H Measurements (mm) 1.351 2.54 2.4 2.6 Pin Descriptions Pin 1 2, 5 3 4 6 Name Vcc GND Enable Data ANT Description Supply Voltage Ground Supply Voltage Data Input External Antenna Electrical Characteristics Ambient temp = 25°C unless otherwise stated. Characteristic Supply Voltage Supply Current (Vcc=3V IN=1kHz) Standby Current Working Frequency Output Power Turn on Time (from Standby) Data Rate Operating Temperature Min. 2.2 200 -20 Typ. 3 15 05 433.92/868 10 1 Max. 3.5 4,800 +85 Dimensions Vdc mA uA MHz dBm ms Hz °C 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. DSQFM-TX1-1 March 07 2007 Quasar (UK) Ltd. Page 2 FM TRANSMITTER MODULE QFM-TX1 QuasarUK is an internet based company. All Sales / support and interface is via our website at www.quasaruk.co.uk for Sales: for Support: Sales : [email protected] Support : [email protected] Support Tel: 0907 639 0000 Calls charged at £0.60 per minute from a BT landline other networks may vary. Callers must be 18 or over and have the bill payers permission. Service provided by StealthNET Ltd :08444150774 DSQFM-TX1-1 March 07 2007 Quasar (UK) Ltd. Page 3