radiometrix ltd, COR3 data sheet page 1 features ?? conforms to en 300 220-2 (category 1) and en 301 489-3 ?? high performance double superhet, p ll synthesizer with tcxo ?? saw front end filter ?? data rates up to 5 kbps for standard module ?? fully screened ?? feature-rich interface (rssi, analogue and binary digital data outputs) ?? user configurable via microcontroller uart ?? low power requirements applications ?? social alarm ?? handheld terminals ?? heavy vehicle/machine remote controls ?? epos equipment, barcode scanners ?? data loggers ?? industrial telemetry and telecommand ?? in-building environmental monitoring and control ?? high-end security and fire alarms ?? vehicle data up/download technical summary ?? social alarm frequencies: ch0: 869.2125mhz, ch1: 869.2375mhz ?? custom frequency within 865mhz - 870mhz ?? up to 32 channels controlled via uart interface (16 parallel selected) ?? supply range: 4.5v - 15v ?? current consumption: 25ma receive ?? data bit rate: 5kbps max. (standard module) ?? receiver sensitivity: - 120dbm (for 12 db sinad) ?? size: 57 x 26 x 9mm evaluation platforms : nbek + COR3 carrier the COR3 is a 25khz channel narrowband multichannel category 1 compliant receiver intended for european 869.2-869.25mhz social alarm application. it can also be used for any 868-870mhz band non-specific srd applications. the module offers a low power, reliable data link in an industry-standard pin out and footprint. hartcran house, 231 kenton lane, harrow, middlesex, ha3 8rp, england tel: +44 (0) 20 8909 9595, fax: +44 (0) 20 8909 2233, www.radiometrix.com 27 july 2012, issue 1 COR3 fi g ure 1: cor 3 -869-5-sal receiver nbfm multi-channel receiver for 868mhz srd band
radiometrix ltd, COR3 data sheet page 2 figure 2: COR3 block diagram
radiometrix ltd, COR3 data sheet page 3 pin description - COR3 pin name function 1a rf in 50 ? rf input from antenna 2a rf gnd rf ground, internally connected to the module screen and pin 2 (0v) 1 rssi dc level between 0.5v and 2.5v. 60db dynamic range 2 gnd ground (0v) 3 vcc supply input 4.5v ? 15v dc 4 af 700mv p-p audio. dc coupled, approx 1v bias 5 rxd open collector output of data slicer suitable for bi-phase codes requires external pull-up resistor to required output voltage level 6 p0/pgm parallel channel select lsb serial frequency programming / configuration 1 7 p1 parallel channel select 8 p2 parallel channel select 9 p3 parallel channel select msb notes: 1. there is no pull-up on the open collector rxd output. 2. p0-p3 are inverted parallel frequency select inputs. they have 10k pullups to 4.4v 3. p0 requires a 4.4v level uart (invert ed rs232) serial command strings for programming 4. a version of the lmr2 firmware is used (s o most variants of the lm_series will also be possible for the COR3 5. two pinout versions are offered: with conv entional pins, out of the bottom of the unit (flat mount) and with right-angle pins, to allow 'sil' vertical mounting. 6. the actual pinout and footprint follows the nrx1/nrx2 type radio, with the addition of p0- p3 figure 3: COR3 flat mounted footprint
radiometrix ltd, COR3 data sheet page 4 COR3 serial configuration commands serial data is sent to the unit on one of the parallel channel select pins (p0). it is very important that the unit does not 'decode' switch bounce in ordinary operation as a command string, or spurious re-writing of the e2prom will result. for this reason the user must send the 16-character stri ng enableserialmode (followed by a carriage return) to fully enable the serial command mode before sending any of the command strings listed below. command mode is disabled on power dow n, or on reception of a # character. you must power the unit to successfully program it. 2400 baud, 8 bit data, no parity, 1 start bit, 1 or 2 stop bi ts, no flow control, 4.4v level uart (inverted rs232) gochan aa serial select of channel aa (0 to 31) load aa nnnnn set value of n for channel aa (channels 0 to 31) setpar channel selected by 4 bit parallel input (0 to 15) setser channel selected by most recent 'gochan' operation rvalue rrrr enter value for r register single nnnnn set value of n for single channel operation. n value not stored in eeprom process entry / clear all buffers # disable command mode aa = a two digit channel number from 00 to 31 nnnnn = synthesizer n register value, (up to 65535) rrrr = synthesizer r register value, (up to 16383) khz mhz f f r cing channelspa xtal 25 13 ? ? , so r=520 notes: 1. when if an n value greater than 65536 is needed then an offset of +65536 can be selected by setting bit 15 of the r value high 2. a pause of at least 50ms must be allowed between command strings (eeprom programming time) single mode does not stor e the n value in eeprom. therefore the unit is inoperative after a power down until either another valid single command is received, or mode is changed by a gocha n, setpar or setser command. single mode is intended for frequency agile applications. 3. /setpar command should be issued at the end of channel programming to put the module back into parallel frequency select mode 4. user can modify the frequency table of 32channels to any desired frequency by changing n, r values of synthesizer within ? 1.5mhz of factory set channel 0 frequency subject to the radio regulatory band allocation in the country of intended use. 32920 khz 25 mhz 45 mhz 868 f if f n cing channelspa rf ? ? ? ? ?
radiometrix ltd, COR3 data sheet page 5 condensed specifications frequency social alarm (sal) variant: ch0:869.2125mhz, ch1:869.2375mhz user customisable frequencies: 865mhz ? 870mhz (versions on any other uhf should, in principle, be possible depending on saw filter availability) frequency stability ? 1.5khz channel spacing 25khz number of channels 32 channels controlled via uart interface (16 parallel selected) supply voltage 4.5v - 15v dc current 25ma operating temperature -20 c to +55 c (storage -30 c to +70 c) size 57 x 26 x 9 mm spurious radiations compliant with et si en 300 220-2 (category 1) and en 301 489-3 interface user 9pin 0.1" pitch molex (optionally 5 pin, without channel selects) rf 2pin 0.1" pitch molex recommended pcb hole size 1.2mm (min.) intended approval etsi radio standard en 300 220-2 and emc standard en 301 489-3 receive sensitivity -120dbm for 12 db sinad blocking >85db adjacent channel -62db tested per. etsi 300-220 v 2.3.1 image >70db spurii >65db spurious radiations compliant with etsi 300-220-2 (category 1) and en 301 489-3 outputs rssi, carrier detect, audio, data power on to valid audio 28ms power on to stable data out (50:50 mark / space) 50ms
radiometrix ltd, COR3 data sheet page 6 received signal strength indicator the COR3 has wide range rssi that measures the st rength of an incoming signal over a range of 60db or more. this allows assessment of link quality and availabl e margin and is useful when performing range tests. the output on pin 1 of the module has a standing dc bias of up to 0.5v with no signal, rising to 2.5v at maximum indication (rf input levels of -40dbm and above). ? vmin-max is typically 2v and is largely independent of standing bias variations. 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 rf level (dbm) rssi output (v) figure 4: rssi voltage variation with respect to rf level at COR3 ordering information part number frequency module mounting pins COR3-869.2125-5-h 869. 2125mhz horizontal mounting, perpendicular pins rf, rfgnd, rssi, gnd, vcc, af, rxd COR3-869-5-sal 869. 2-869.25mhz vertical mounting, parallel pins rf, rfgnd, rssi, gnd, vcc, af, rxd p0/pgm COR3-869-5-sal-h 869. 2-869.25mhz horizont al mounting, perpendicular pins rf, rfgnd, rssi, gnd, vcc, af, rxd p0/pgm COR3-869-5 868-870mhz ve rtical mounting, parallel pins rf, rfgnd, rssi, gnd, vcc, af, rxd p3, p2, p1, p0/pgm COR3 can be user programmed to any frequency within 865mhz-870mhz saw filter bandwidth. it can be factory produced to a wide range of uhf s ub-bands subject to avail ability of saw filter. COR3 can be mounted vertically on a pcb with parallel pins like in figure 1. alternatively, COR3 can be supplied with perpendicula r pins for horizontal mounting parallel to host pcb ground plane. number of parallel channel selection pins depends on required frequency channels.
radiometrix ltd, COR3 data sheet page 7 appendix [mw] [mhz] rf power [erp] 10 100 500 600khz 500khz 250khz 300khz 25mw 25mw cept/erc rec 70-03, 868 mhz band plan applications channel spacing duty cycle 5mw 500mw 10mw 100khz 868.0 868.60 868.70 869.20 869.25 869.30 869.65 869.40 870.0 869.70 <1% or lbt no spacing non-specific srd non-specific srd non-specific srd no spacing up to 100% <0.1% or lbt <1% <10% or lbt <10% no spacing 25khz or wide band 25khz alarm alarm <1% 25khz or wb alarm social alarm 10mw 25khz <0.1% 100khz 25mw 10mw 50khz 50khz 10mw non-specific srd 25khz 50khz
radiometrix ltd hartcran house 231 kenton lane harrow, middlesex ha3 8rp england tel: +44 (0) 20 8909 9595 fax: +44 (0) 20 8909 2233 sales@radiometrix.com www.radiometrix.com copyright notice this product data sheet is the orig inal work and copyrighted property of radiometrix ltd. reproduction in whole or in part must give clear a cknowledgement to the copyright owner. limitation of liability the information furnished by radiometrix ltd is be lieved to be accurate and reliable. radiometrix ltd reserves the right to make changes or improvements in the design, specification or manufacture of its subassembly products without notice. radiometrix lt d does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infri ngements of patents or other rights of third parties which may result from the us e of its products. this data sheet neither states nor implies warranty of any kind, including fitness for any particular application. these radio devices may be subject to radio interference and may not function as intended if interference is present. we do not recommend their use for life critical applications. the intrastat commodity code for all our modules is: 8542 6000 r&tte directive after 7 april 2001 the manufacturer can only place fini shed product on the market under the provisions of the r&tte directive. equipment within the scope of the r&tte di rective may demonstrate compliance to the essential requirements specified in article 3 of the directive, as appropriate to the particular equipment. further details are available on the office of communications (ofcom) web site: http://www.ofcom.org.uk/ information requests ofcom riverside house 2a southwark bridge road london se1 9ha tel: +44 (0)300 123 3333 or 020 7981 3040 fax: +44 (0)20 7981 3333 information.requests@ofcom.org.uk european communications office (eco) peblingehus nansensgade 19 dk 1366 copenhagen tel. +45 33896300 fax +45 33896330 ero@ero.dk www.ero.dk
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