RFM02 Datasheet REV1.2 ISM BAND FSK TRANSMITTER MODULE RFM02 （the purpose of this spec covers mainly for the physical characteristic of the module, for register configure and its related command info please refer to RF02 data sheets） RFM02 General Introduction RFM02 is a low costing ISM band transmitter module implemented with unique PLL approach. It works with FSK modulated signal ranges from 433/868/915MHZ bands, comply with FCC, ETSI regulation. The SPI interface is used to communicate with microcontroller for parameter setting. RFM02 works with RFM01 receiver module. At 433MHZ band, the pair of module can work up to 300m in the free open air. Features: • Low costing, high performance and price ratio • Tuning free during production • FSK transmission • PLL employed • Fast PLL lock time • High resolution PLL with 2.5 KHz step • Programmable frequency deviation (from 30 kHz to 210 kHz, step 30 kHz) • Programmable output power • High data rate (up to 115.2 kbps with FSK modulation) • Differential antenna output • Automatic antenna tuning • SPI interface • Clock and reset signal output for external MCU use • 10MHz crystal for PLL reference • Programmable crystal load capacitor bank • Wakeup timer • low battery detection • 2.2V - 5.4V power supply • Low power consumption • stand by current less than 0.3μA Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 Typical Application： • Remote control • Remote sensor • Wireless data collection • Home security system • Toys • Tire pressure monitoring system Pin Definition： SMD DIP Definition TYPE function FSK DI FSK data input CLK DO clock out for MCU (1 MHz-10 MHz) VDD S Positive power supply nIRQ DO Interrupts request output（active low） SDI DI SPI data input SCK DI SPI clock input VSS S negative power supply, GND nSEL DI Chip select (active low) Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 Electrical Specification： Maximum（not at working mode） symbol parameter min max unit Vdd Positive power supply -0.5 6.0 V Vin All pin input level -0.5 Vdd+0.5 V Iin Input current except power -25 25 mA ESD Human body model 1000 V Tst Storage temperature 125 ℃ Tld Soldering temperature(10s) 260 ℃ -55 Recommended working range symbol parameter min max unit Vdd Positive power supply 2.2 5.4 V Top operation temperature -40 85 ℃ DC Characteristics： symbol Idd_TX_0 parameter conditions/note min current 433 MHz band 0 dBm power 12 consumption 868 MHz band output 14 915 MHz band Idd_TX_PMAX typ max power output 433 MHz band consumption 868 MHz band 25 915 MHz band 26 sleep mode current Iwt Ilb unit mA 15 current Ipd max 23 all blocks off mA 0.3 μA waek-up timer current consumption 1.5 μA low battery detector current 0.5 μA 1.5 mA 75 mV consumption Ix idle mode current only crystal work Vlba low battery detection accuracy Vlb low battery detection range Vil Low level input Vih High level input Iil Leakage current Vil = 0 V -1 1 μA Iih Leakage current Vih = Vdd, -1 1 μA 0.4 V 0.1V step 2.2 5.3 V 0.3*Vdd V 0.7*Vdd V Vdd = 5.4V Vol Low level output Iol = 2 mA Voh High level output Ioh = -2 mA Tel: +86-755-82973805 Fax: +86-755-82973550 Vdd-0.4 V E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 DC Characteristics： symbol parameter conditions/notes min typ max unit fref PLL reference frequency Parallel fundamental 9 10 11 MHz 433MHz band,2.5kHz step 430.24 439.75 Output frequency 868MHz band,5.0kHz step 860.48 879.51 （fref=10MHZ） 915MHz band,7.5kHz step 900.72 929.27 fo fo fo tlock 433MHz band,2.5kHz step 387.22 395.76 Output frequency（fref=9MHZ） 868MHz band,5.0kHz step 774.43 791.56 915MHz band,7.5kHz step 810.65 836.34 433MHz band,2.5kHz step 473.26 483.73 Output frequency（fref=11MHZ） 868MHz band,5.0kHz step 946.53 967.46 915MHz band,7.5kHz step 990.79 1022.2 PLL lock time After 10MHz step hopping, 20 MHz MHz MHz μs frequency error <10 kHz tsp PLL start time Pmax Co After crystal stabilized 250 433MHz band 5 7 868MHz band 2 4 915MHz band 2 4 output capacitance(set by low bands 1.5 2.3 3.1 antenna tuning circuit) high bands 1.6 2.2 2.8 16 18 22 Max available ouput power Qo Q factor of output capacitance BRFSK FSK data rate dffsk FSK deviation 30KHz step Cxl crystal load capacitance 0.5pF step,tolerance μs dBm pF 115.2 kbps 30KHz 210 kHz 8.5 16 pF 0.95 1.05 ms 1 2*10E9 ms 100 ms 5 ms +/-10% tPBt period of wake-up timer clock twake-up wake-up time(programable) tPOR internal POR time calibrated evry 30 seconds after power reached 90% VDD tsx Crystal start time ESR < 100 ohms Field testing range operation band condition range 433MHz band Bandwidth=134KHz, data rate=1.2kbps Frequency deviation=60KHZ（matches with RFM01） >200m in free open area 868MHz band Bandwidth=134KHz, data rate=1.2kbps Frequency deviation=60KHZ（matches with RFM01） >200m in free open area 915MHz band Bandwidth=134KHz, data rate=1.2kbps Frequency deviation=60KHZ（matches with RFM01） >200m in free open area Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 SGS Reports Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 Mechanical Dimension: （all dimensions in mm） SMD PACKAGE（S1） SMD PACKAGE（S2） DIP PACKAGE（D） Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com RFM02 Datasheet REV1.2 Module Definition model=module-operation_band-package_type RFM02B-433-D module type operation band Package eg：1，RFM02 module at 433MHz band, DIP : RFM02-433-D。 2，RFM02 module at 868MHz band, SMD, thickness at 4.2mm : RFM02-868-S1。 This document may contain preliminary information and is subject to change by Hope Microelectronics without notice. 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