april 14, 2006 preliminary data sheet radios, inc. data sheet preliminary fsk/ask transmitter module radio module MTX-705/15/35 MTX-705 mtx-715 mtx-735 supports the follow parts:
MTX-705/15/35 fsk/ask transmitter module the MTX-705/15/35 fsk/ask transmitter is designed for applications in the 315 mhz, 433 mhz, or 868 mhz industrial-scientific-medical (ism) band, according to the en 300 220 telecommunications standard; but it can also be used in any other country with similar frequency bands. the MTX-705/15/35 transmitter consists of a fully integrated voltage-controlled oscilattor, a divide-by-32 divider, a phase-frequency detector and a charge pump. an internal loop filter determines the dynamic behavior of the pll and suppresses reference spurious signals. a colpitts crystal oscillator is used as the reference oscillator of a phase- locked loop synthesizer. the vco?s output signal feeds the power amplifier. ? adjustable output power range: -11 to +10 dbm ? adjustable current consumption: 3.4 to 10.6 ma typical applications ? general digital data transmission ? tire pressure monitoring system (tpms) ? remote keyless entry (rke) ? low-power telemetry ? alarm and security systems ? garage door openers ? home automation key features ? fully integrated pll-stabilized vco ? frequency range from 250-350mhz, 380- 450mhz, or 850-930mhz ? single-ended rf output ? fsk through crystal pulling allows modula- tion from dc to 40 kbit/s ? high fsk deviation possible for wideband data transmission ? ask achieved by on/off keying of internal power amplifier up to 40 kbit/s ? very low standby current ? on-chip low voltage detector ? high over-all frequency accuracy ? fsk deviation and center frequency independently adjustable -page 2- preliminary product order information part number description MTX-705(d)(s) th72005 fsk/ask module transmitter mtx-715(d)(s) th72015 fsk/ask module transmitter mtx-735(d)(s) th72035 fsk/ask module transmitter contact information radios, inc. p.o. box 1304 north wales, pa 19454 phone: 215-362-1899 fax: 215-362-2214 email: sales@radiosinc.com
MTX-705/15/35 fsk/ask transmitter module -page 3- mechanical and pin diagram preliminary pin num pin name description pin num pin name description pin 1 ant rf output pin 6 +vin supply voltage pin 2 gnd ground pin 7 reg-en regulator enable pin 3 gnd ground pin 8 +3.3v regulated output pin 4 fsk-data fsk data input pin 9 entx bandwidth selection bit 0 pin 5 ask-data ask data input pin 10 n/c no connect pin description
-page 4- MTX-705/15/35 fsk/ask transmitter module preliminary parameters test conditions min typ max unit operating conditions input low voltage entx, data pins 0.3vcc v input high voltage entx, data pins 0.7vcc v xosc frequency MTX-705 mtx-715 mtx-735 9 11.9 26.6 10.9 14 29 mhz mhz mhz vco frequency MTX-705 mtx-715 mtx-735 290 380 850 350 450 930 mhz mhz mhz fsk deviation MTX-705 mtx-715 mtx-735 2.5 2.5 2.5 30 40 60 khz khz khz fsk data rate nrz 40 kbit/s ask data rate nrz 40 kbit/s operating currents standby current entx=0, 85c entx=0, 125c 0.2 200 4 na a supply current - MTX-705/15 7.3 10.6 13.3 ma supply current - mtx-735 9.4 13.4 17.3 ma digital pin characteristics input low voltage cmos entx, data pins -0.3 0.3vcc v input high voltage cmos entx, data pins 0.7vcc vcc+0.3 v pull down current entx pin entx=1 0.2 2 20 a low level input current entx pin entx=0 0.02 a high level input current data pins fsk/ ask-data=1 0.02 a pull up current data pins active fsk/ask-data=0, entx=1 0.1 1.5 12 a pull up current data pins standby fsk/ ask-data=0, entx=0 0.02 a fsk switch resistance mos switch on resistance fsk-data=0, entx=1 20 60 ohm mos switch off resistance fsk-data=1, entx=1 1 mohm 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. sym parameters min typ max unit notes absolute maximum ratings vdd supply voltage -20 20 v storage temperature range -65 150 c lead temperature 260 c v en enable input voltage -20 +20 v operating ratings supply voltage 2.5 16 v v en enable input voltage 0tbdv t a ambient operating temperature -40 125 c electrical limits
frequency stability frequency stability vs. supply voltage 3 ppm frequency stability vs. temperature crystal at constant temperature 10 ppm enable input enable input logic-low voltage(v il ) regulator shutdown 0.4 0.18 v v enable input logic-high voltage(v ih ) regulator enabled 2.0 v enable input current v il MTX-705/15/35 fsk/ask transmitter module preliminary power select characteristics power select current entx=1 7 8.6 9.9 a power select voltage entx=1 1.47 v low voltage detection characteristic low voltage detect threshold entx=1 1.75 1.85 1.95 v cw spectrum characteristics output power MTX-705 entx=1 7.6 dbm output power mtx-715 entx=1 7.1 dbm output power mtx-735 entx=1 6.7 dbm phase noise @ 200khz offset -88 -83 dbc/hz 47mhz< f <74mhz 87.5mhz< f <118mhz 174mhz< f <230mhz 470mhz< f <862mhz, b=100khz -54 dbm f < 1ghz, b=100khz -36 dbm f > 1ghz, b=1mhz -30 dbm start-up parameters start-up time from standby to transmit mode 0.8 1.2 ms spurious emissions according to en 300 220-1 (2000.09) table 13 electrical characteristics - cont.
MTX-705/15/35 fsk/ask transmitter module 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 an 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. a product can be returned directly to radios, inc. for evaluation. all returns must have a valid rma number attached. rma numbers can be obtained by calling customer service 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. this warranty does not apply to products which have been disassembled, modified, or subjected to conditions exceeding the application specifications. under no conditions will radios, inc. be responsible for losses arising from the use or failure of a device in any 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. -page 6-
technical support: radios inc. is committed to providing its customers with excellent technical support and the resources necessary to assist its customers with their product development. 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 may call radios inc. at 215-362-1899. 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. editorial information: (date) last updated april 14, 2006preliminary MTX-705/15/35 fsk/ask transmitter module -page 7-
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