may 30, 2007 preliminary data sheet radios, inc. data sheet preliminary uhf fm transceiver module radio module mxr-505
mxr-505 uhf fm transceiver module the mxr-505 is a frequency shift keyed (fsk) high performance, ultra compact, long range transceiver operating at the 902-928 mhz and 868.25 mhz bands. this integrated modularized trans- ceiver is designed for use in half-duplex, bidirectional rf links. the multi-channeled mxr-505 is intended for use in uhf radio equipment in compliance with both the north american federal communications commission (fcc) part 15.247 and 15.249 sys- tems and the european telecommunications standard institute (ets) specification en300 200. -page 2- preliminary the transmitter is composed of both a pll frequency synthesizer and a power amplifier. the synthesizer uses a voltage-controlled crystal oscillator, a dual-modulus prescaler, programmable frequency dividers, and a phase-detector. the power amplifier?s output power can be programmed to seven different levels. the mxr-505 has zero if architecture which enables channel filtering with low-power, integrated low- pass filters. each channel includes a pre-amplifier and a third order sallen-key rc low-pass filter that protects the switched-capacitor filter from strong adjacent channel signals. the main channel filter is a switched-capacitor implementation of a six-pole elliptic low pass filter. the cutoff frequency of the sallen-key rc filter can be programmed to four different frequencies: 100khz, 150 khz, 230 khz, and 340 khz. a receive signal strength indicator circuit indicates the received signal level. the mxr-505 is a well-designed transceiver suitable for a variety of rf applications, particularly voice applications and high volume oem applications. key features ? low cost ? wide supply voltage range ? wide operating temperature range ? easily integrated ? low power consumption ? compact surface-mount packages/small size ? 2.5v operation ? simple serial programming interface ? baud rate from 1200 to 200,000 bps ? spread spectrum ? external reset pin ? exceptional sensitivity: -111dbm ? receive signal stength (rssi) pin ? no production tuning typical applications ? remote controls ? garage openers / gate controls ? keyless entry ? lighting control ? home / industrial automation ? continuous / periodic data transfer ? wireless networking ? remote access ? remote monitoring / telemetry ? medical monitoring / call systems ? guard patrol / lone worker protection ? domestic / commercial security ? fire / security alarms ? long-range rfid ? automated meter reading contact information radios, inc. 1408 center avenue oostburg, wi 53070 phone: 920-564-6622 fax: 920-564-6630 email: sales@radiosinc.com
mxr-505 uhf fm transceiver module -page 3- mechanical and pin diagram preliminary pin num pin name description pin num pin name description pin 1 rst/nmi no connect pin 13 +vin positive supply pin (2.6-16v) pin 2 test no connect pin 14 +2.5v regulated output (2.5v) pin 3 tdo no connect pin 15 reg-en regulator enable (2-vcc) pin 4 tdi no connect pin 16 n/c no connect pin 5 tms no connect pin 17 n/c no connect pin 6 tck no connect pin 18 n/c no connect pin 7 gnd ground pin 19 n/c no connect pin 8 gnd ground pin 20 dataclk data clock output (0-2.5v) pin 9 gnd ground pin 21 dataixo data input/output (0-2.5v) pin 10 gnd ground pin 22 rssi receive signal strength indicator (0-2.5v) pin 11 gnd ground pin 23 utxd transmit data out?uart mode (0-2.5v) pin 12 ant rf input/output (50 ohms) pin 24 urxd receive data out?uart mode (0-2.5v) pin description * note: pinouts of surface mount and through-hole packages are mirrored dip package
mxr-505 uhf fm transceiver module -page 4- mechanical and pin diagram pin num pin name description pin num pin name description pin 1 ant rf input/output (50 ohms) pin 13 urxd receive data out?uart mode (0-2.5v) pin 2 gnd ground pin 14 utxd transmit data out?uart mode (0-2.5v) pin 3 gnd ground pin 15 rssi receive signal strength indicator (0-2.5v) pin 4 gnd ground pin 16 dataixo data input/output (0-2.5v) pin 5 gnd ground pin 17 dataclk data clock output (0-2.5v) pin 6 gnd ground pin 18 n/c no connect pin 7 tck no connect pin 19 n/c no connect pin 8 tms no connect pin 20 n/c no connect pin 9 tdi no connect pin 21 n/c no connect pin 10 tdo no connect pin 22 reg-en regulator enable (2-vcc) pin 11 test no connect pin 23 +2.5v regulated output (2.5v) pin 12 rst/nmi no connect pin 24 +vin positive supply pin (2.6-16v) pin description preliminary * note: pinouts of surface mount and through-hole packages are mirrored surface mount package
-page 5- mxr-505 uhf fm transceiver module preliminary mxr-505 communication communication with the mxr-505 is accomplished through a universal asynchronous receive/ transmit (uart) peripheral interface. the uart uses 8-bit, non-parity, lsb, 1200bps baud format. the maximum number of data bytes that can be transmitted or received in one packet is 50. the user will transmit data through the uart on the mxr-505 via pin 24, urxd. the mxr-505 will packetize and wirelessly transmit the data. once the data is received on the other side, the mxr-505 will demodulate the data and send the received data out to the user via pin 23, utxd. the data being sent through the uart should follow a specific protocol. the communication protocol is outlined below: byte #1 number of bytes ? the number of bytes is one byte containing the total number of data bytes. this byte should not be included in the number of bytes. therefore, the number of bytes should be one less than the total number of bytes being sent or received. the maximum number of data bytes that can be transmitted or received is 50; therefore, the number of bytes should not exceed 50. bytes #2-51 data bytes ? the data bytes are the actual data byte values being transmitted or received by the mxr-505. the mxr-505 can send or receive a maximum of 50 data bytes per packet. the first two bytes are used as preamble bytes by radios, inc. to differentiate the detection of data from noise. they can be set to any value, but to work with the hhds-ml they must be set to 0xff and 0x00, respectively. when the first byte is received through the uart on the mxr-505, the user will have one second to send the remaining data bytes to the mxr-505. if the mxr-505 does not receive all of the data bytes within that second, the data the mxr-505 did receive will be dumped. for example, if the user sends a 10 for the number of bytes and then only sends five more bytes within one second, the mxr-505 assumes this is corrupted data and does not transmit the packet. the five bytes the mxr-505 did receive will be discarded and the mxr-505 will wait for a new packet of data to be received. sym parameters min typ max unit notes absolute maximum ratings vcc supply voltage 2.6 16 v voltage on any pins -0.5 2.7 v storage temperature range 0 70 c lead temperature 260 c v en enable input voltage 016v esd rating kv operating ratings package thermal resistance c/w v en enable input voltage 0vc c v ta ambient operating temperature 070 c electrical limits
-page 6- mxr-505 uhf fm transceiver module preliminary parameters test conditions min typ max unit power supply rf frequency operating range 2400 2483.5 mhz power supply v power down current a standby current a quiescent current 13 20 29 a operating voltage 2.6 16 v vco and pll section reference frequency mhz pll lock time 3khz bandwidth 915mhz to 915.5mhz 902mhz to 927mhz 20khz bandwidth ms ms ms switch time 3khz loop bandwidth rx ? tx tx ? rx standby rx standby tx ms ms ms ms crystal oscillator start-up time 16 pf load 0.86 ms charge pump current vcpout = 1.1v, cp_hi = 0 vcpout = 1.1v, cp_hi = 1 a a charge pump tolerance % transmit section output power delivered to a single ended 50 ohm load through a balun -3 0 dbm output power tolerance over temperature range over power supply range db db tx current consumption p = -25 dbm p = -15 dbm p = -10 dbm p = -5 dbm p = 0 dbm 8.5 9.9 11 14 17.4 ma ma ma ma ma tx current consumption variation 10dbm ma binary fsk frequency separation bitrate = 200kbps khz data rate 250 250 kbps occupied bandwidth 20kbps, b = 2, 20dbc 125kbps, b = 2, 20dbc 200kbps, b = 2, 20dbc khz khz khz 2nd harmonic -34 dbc 3rd harmonic -60 dbc spurious emission 30-1000 mhz 1-12.75 ghz 1.8-1.9 ghz 5.15-5.3 ghz -36 -30 -47 -47 dbm dbm dbm dbm electrical characteristics this device is esd sensitive. do not operate or store near strong electrostatic fields. use appropriate esd precautions. all voltages are with respect to ground.
adjacent channel rejection 200khz spacing 500khz spacing 1mhz spacing blocking 1mhz 2mhz 5mhz 10mhz 42 47 38 41 db db db db noise figure, cascade tbd db 1db compression -35 db input ip3 2 tones with 1mhz separation -25 dbm input ip2 dbm lo leakage -90 dbm spurious emission < 1ghz > 1ghz -54 -54 dbm dbm input impedance 50 ohms input reflection (s11) -20 -15 db rssi dynamic range 50 db rssi output voltage pin = 100dbm pin = 60dbm 0.9 1.85 v v digital inputs/outputs logic input high 0.7vcc vcc v logic input low 0 0.3vcc v clock/data frequency 10 mhz clock/data duty cycle 45 55 % regulator enable input input low voltage regulator off 0.6 v input high voltage regulator on 2.0 v enable input current v en = 0.6v; regulator off 0.01 a note 1 . exceeding the absolute maximum rating may damage the device. note 2 . the device is not guaranteed to function outside its operating rating. note 3 . devices are esd sensitive. handling precautions recommended. human body model, 1.5k in series with 100pf. -page 7- mxr-505 uhf fm transceiver module preliminary receive section rx current consumption 19.7 ma rx current consumption variation over temperature ma receiver sensitivity -90 -94 dbm receiver maximum input power 125kbps, 125khz deviation 20kbps, 20khz deviation dbm dbm receiver sensitivity tolerance over temperature over power supply range db db receiver bandwidth khz co-channel rejection db electrical characteristics - cont.
mxr-505 uhf fm transceiver module -page 8- technical support: radios, inc. is committed to providing its customers with excellent technical support and the resources necessary to assist them with their product development. all technical support is provided free of charge. customers have several options to obtain assistance. first, any questions or concerns can be e-mailed to radios, inc. at information@radiosinc.com . we monitor our e-mail daily, and will respond to all questions promptly. additionally, to speak directly to a technical support representative, customers can call radios, inc. at 920-564-6622. compliance: embedded wireless modules are intended for use as component devices which require peripheral elements to operate. radios, inc.?s modules are intended to be used in products requiring compliance. they are, however, not pre-approved by the fcc or any other agency worldwide unless so stated. the user or customer understands that regulatory compliance may be required prior to the sale or operation of the module or development system, and agrees to abide by all laws governing the module?s or development system?s use in the country of operation. the approval process of embedded wireless modules in the united states is relatively uncomplicated. the federal communications commission (fcc) is the governing body in the us that specifies its requirements in the code of federal regulations (cfr), title 47. title 47 consists of several volumes and it is necessary to first identify the correct section that applies to your application. these rules require that a device which intentionally creates rf emissions be fcc compliant; i.e., pre-tested for compliance and assigned an identification number. radios, inc. offers pre-screening at one of our affiliate test sites. final certification is then accomplished by an independent test laboratory. after passing compliance testing, you will be issued a unique id number which must be placed on each product manufactured. any questions dealing with interpretations of the rules relating to testing or compliance should be addressed to: fcc equipment authorization division customer service branch, mn 1300f2 7435 oakland mills road columbia, md 21046
mxr-505 uhf fm transceiver module -page 9- returns: products may be returned directly to radios, inc. for evaluation. returns, without exception, must have a valid rma number attached. rma numbers can be obtained by calling a customer service representative at radios, inc. if a product is found to be defective and is returned within 90 days of purchase, radios, inc. may repair or replace, at its option, said defective product. the warranty does not apply to any products which have been disassembled, modified or subjected to conditions exceeding the application specifications. under no circumstances will radios, inc. be responsible for losses, financial or other, arising from the use or failure of a device in an application or for losses arising from failure to meet delivery requirements, other than the repair, replacement, or refund limited to the original product purchase price. no other warranties, express, implied, or statutory, including warranty of fitness for a particular purpose, apply. product warranty and disclaimer information: radios, inc. is dedicated to providing its customers with the best possible products, and is continually working on improving the quality and function of its entire product line. therefore, radios, inc. reserves the right to make changes to the design, specifications, or manufacturing of its products without notice. the information contained in this data sheet is believed to be complete, accurate, and reliable as of the time of publication. because product specifications are based on representative lot samples, however, values can vary from lot to lot and are not guaranteed. radios, inc. does not assume any liability or responsibility arising from the application or use of any product described herein, and makes no guarantee, warranty, or representation regarding the suitability or legality of any product for use in a specific application. radios, inc. does not assume any liability for any infringement of patents or other rights of third parties which may result from the use of its products. no product sold by radios, inc. is intended for use in a life critical application, or any application where the safety of property is at risk. the user assumes full and complete responsibility for any use of radios, inc.?s products in an application where the safety of life or property is at stake. radios, inc., its suppliers, and its licensors shall in no event be liable for any damages arising from the use of or inability to use this product. this includes business interruption, loss of business information, or other losses that may arise from the use of this product. some devices described in this publication are patented. under no circumstances shall any user be conveyed any license or right to the use or ownership of these patents. copyright: radios inc. reserves the right to all proprietary or commercial information contained in this data sheet. this data sheet is protected by copyright, and any unauthorized copying, reproduction, or dissemination is strictly prohibited without the prior written approval of radios inc.
packaging: b - bulk tb - tube tr - tape and reel antenna: a - antenna - no antenna voltage regulation: r - regulated - not regulated baud rate: 600 = 600 bps = 1200 bps 2400 = 2400 bps 4800 = 4800 bps 9600 = 9600 bps 14400 = 14,400 bps 28800 = 28,800 bps 57600 = 57,600 bps footprint: d - through-hole ds - through-hole shielded s - surface mount ss - surface mount shielded frequency: 915 = 915 mhz xxx = custom frequency protocol: e - eval * ri - rinet (based on module's frequency range) a-b mxr-505 - 915 d r 4800 e mxr-505 uhf fm transceiver module -page 10- editorial information: (date) last updated may 30, 2007 preliminary product ordering information: * eval software for use with hhds-ml m only. will not work for other applications.
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