FM TRANSMITTER & RECEIVER HYBRID MODULES. FM-RTFQ SERIES FM-RRFQ SERIES . • • • • • • FM Radio Transmitters & Receivers • • • • Very Stable Operating Frequency Available as 433MHz Transmit Range up to 250m Miniature Packages Data Rate up to 9.6Kbps No Adjustable Components RTFQ1P 0 Operates from –0 to +70 C EMC Compliant for use in Europe FCC Compliant for use in USA Transmitter • • 3V Supply Voltage SIL, DIL or SMT Packages available Receiver • • • • • PLL XTAL Design RTFQ2 CMOS/TTL Output RSSI Output Standby Mode (max 100nA) 5V Supply Voltage Applications • • • • • • Wireless Security Systems Car Alarms Remote Gate Controls RRFQ1P Remote Sensing Data Capture Sensor Reporting Description These miniature RF modules provide a cost effective high performance FM Radio data link, at, 433.92MHz. The modules uses no adjustable components ensuring very reliable operation. This transmitter and receiver pair enables the simple implementation of a data link at distances up to 75 metres in-building and 250 metres open ground. The modules have been approved for operation with Europe and USA within FCC part15. These modules will suit one-to-one and multi-node wireless links in applications including car and building security, EPOS and inventory tracking, remote industrial process monitoring and computer networking. Because of their small size and low power requirements both modules are ideal for use in portable, batterypowered applications such as hand-held terminals. DS070-3 Jan12 ©2012 Reg. No. 227 4001, England Page 1 FM-RTFQ SERIES FM-RRFQ SERIES FM TRANSMITTER & RECEIVER HYBRID MODULES. Transmitters There are three versions of transmitter: RTFQ1: A dual in line package operating at 3.3V. This provides the most rugged mechanical fixing to the host PCB. Power down mode is also available. RTFQ1 SM: A dual in line surface mount package operating at 3.3V. This provides the quickest and most efficient mechanical fixing to the host PCB. Currently only available in 433MHz. RTFQ2: A dual in line package operating at 3.3V. This provides the most rugged mechanical fixing to the host PCB. Power down mode is also available. Transmitter Block Diagram In XTAL Oscillator XTAL PLL Synthesizer Power Amp Out En Part Numbering Part Number FM-RTFQ1-433P FM-RTFQ1-433PSO FM-RTFQ2-433 Description DIL FM Transmitter Module 433.92 MHz SMT FM Transmitter Module 433.92 MHz SIL FM Transmitter Module 433.92 MHz Receiver Block Diagram Vcc Vcc In Pre Amp Filter Mixer 10.7MHz IF Filter FM Demodulator Comparator Out GND PLL Synthesizer GND GND Part Numbering Part Number FM-RRFQ1-433 DS070-3 Jan12 Description SIL FM Receiver Module 433.92 MHz ©2012 Reg. No. 227 4001, England Page 2 FM-RTFQ SERIES FM-RRFQ SERIES FM TRANSMITTER & RECEIVER HYBRID MODULES. RTFQ1 Mechanical Dimensions 20.32mm PCB Layout Requirements 1 5.08mm 2 3 2.54mm Module Thickness 2mm 6 Top View (Components Underneath) 11.43mm 5 4 Pins on "0.1 pitch Pin Dimensions : 0.25mm x 0.50mm 20mm RTFQ1 SMT Dimensions 20.5mm 1.91mm 1 5.08mm 2.30mm 2.54mm 1.2mm 19.10mm 1.91mm 2 3 Top View (Components Underneath) 6 11.5mm Module Thickness 0.8mm 5 4 RTFQ2 Mechanical Dimensions PCB Layout Requirements 30.48mm 10.67mm Pins on "0.1 pitch RTFQ2 1mm 20.32mm 2.54 2.54 spacing Module Thickness 2mm 1 2 Pin Dimensions : 0.25mm x 0.50mm 3 4 5 Pin Description RTFQ1 1 2 3 4 5 6 RTFQ2 N/A 5 1 3 4 2 Name En IN GND Vcc GND EA Description Enable (active high) Data input Ground, Connect to RF earth return path Supply Voltage Ground, Connect to RF earth return path External Antenna Technical Specifications Electrical Characteristics Supply Voltage RTFQ1 Supply Current Standby Current (IN = EN = Low) Frequency RF Output into 50Ω (Vcc=3.3V) Initial Frequency Accuracy FM Deviation Harmonic Spurious Emissions Input High Voltage RTFQ1 Input High Voltage RTFQ2 Power up Time (En to full RF) Power up Time (Power on to full RF) Max Data Rate Operating Temperature DS070-3 Jan12 MIN 2.1 -35 25 1.5 1.5 -0 ©2012 Reg. No. 227 4001, England TYPICAL 3.3 7 433.92 +5 / +5 / +1 0 30 -50 MAX 4.00 8 100 +35 35 Vcc 5.5 1 5 9.6 +70 Page 3 DIMENSION V mA nA MHz dBm KHz KHz dBc V V mS mS KHz °C FM-RTFQ SERIES FM-RRFQ SERIES FM TRANSMITTER & RECEIVER HYBRID MODULES. RRFQ1 Mechanical Details 38.1mm 2.40mm Component Side 1 3 7 11 18.1mm 15 Pin Dimensions : 0.25mm x 0.50mm 2.54mm Pin Description RRFQ1 RSSI Output* RF In (dBm) RSSI (V) 1 +Vcc Pin Description -120 1.20 2, 7,11 GND -110 1.32 3 Data In (Antenna) -100 1.50 12 NC -90 1.78 13 Received Signal Strength Output -80 2.06 N/A AF Output -70 2.35 14 Data Out -60 2.62 15 Power Down -50 2.72 -40 2.75 0V = Standby 5V = Operating RSSI Output The RSSI provides a DC Voltage proportional to the peak value of the receive data signal. This output can be used as an indicator for the received signal strength to use in wake-up circuits etc. An RC circuit is normally used to provide the timing for the RSSI signal. The modules have a 10nF capacitor internally connected to GND, therefore a pull down resistor (to GND) connected to the RSSI pin may be used to generate a simple RC network time constant for the RSSI signal output. Please note that the maximum output current is typically 950µA, the discharge current is lower than 2µA DS070-3 Jan12 ©2012 Reg. No. 227 4001, England Page 4 FM-RTFQ SERIES FM-RRFQ SERIES FM TRANSMITTER & RECEIVER HYBRID MODULES. Technical Specifications Electrical Characteristics Supply Voltage (Vcc) Supply Current (Operating) Supply Current (Standby) Min 4.5 Typical 5 5.7 Max 5.5 6.8 100 315.00 433.92 868.35 Receiver Frequency R.F Sensitivity (100% AM) 315 ,433MHZ versions 868MHz versions 3dB Bandwidth Data Rate RRFQ1 RRFQ2 Turn on Time Turn on Time Level of Emitted Spectrum Low Level Output Voltage High Level Output Voltage RSSI Output Operating Temperature Range dBm KHz 9,600 4,800 5 8 -70 0.8 Vcc-1 0.95 -25 Notes MHz -103 -100 +/-150 300 300 Dimension V mA nA +80 Hz mSecs mSecs dBm V V mA o C 1 2 I = 200uA I = 200uA Notes 1. Time from PD pin going high to stable data. (RRFQ1 only) 2. Time from Power ON to stable data. 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. DS070-3 Jan12 ©2012 Reg. No. 227 4001, England Page 5 FM-RTFQ SERIES FM-RRFQ SERIES FM TRANSMITTER & RECEIVER HYBRID MODULES. Typical Application The following circuits show a remote control system with ‘self learning feature’. Please refer to datasheet DS600 for more information. Transmitter Circuit 3.3V Antenna 3.3V SW1-4 1 2 3 4 A0 Vcc A1 LED A2 DATA A3 GND 2K2 8 1 7 6 5 ANT 2 IN 3 GND BC848 10K EN 6 5 GND 4 Vcc RTFQ1-XXX RF600E Receiver Circuit Vcc 15KΩ Ω 1KΩ Ω 13 L Status LED FM -RRFQ1 12 3 7 11 Option Link 15 12 14 4 17 Sleep Vcc Vcc OP1 O/P 1 18 LKIN O/P 2 OP2 M 1 O/P 3 OP3 OP4 10 LRN RF600D 1KΩ Ω LB SD1 Learn Switch 2 O/P 4 3 Transmitter Low Battery Serial Data Output 11 Vcc 9 ECLK IN 7 22KΩ Ω GND 5 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 RF Solutions is a member of the Low Power Radio Association All Trademarks acknowledged and remain the property of the respected owners 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. DS070-3 Jan12 ©2012 Reg. No. 227 4001, England Page 6