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TH72015KLD Datasheet(PDF) 1 Page - Melexis Microelectronic Systems |
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TH72015KLD Datasheet(HTML) 1 Page - Melexis Microelectronic Systems |
1 / 20 page TH72015 433MHz FSK/ASK Transmitter 39010 72015 Page 1 of 20 Data Sheet Rev. 008 June/07 top TH72015 OUT VEE VCC VEE PSEL ENTX FSKDTA FSKSW ROI ASKDTA bottom 2 1 3 4 5 9 10 8 7 6 Features ! Fully integrated PLL-stabilized VCO ! Frequency range from 380 MHz to 450 MHz ! Single-ended RF output ! FSK through crystal pulling allows modulation 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 ! Wide power supply range from 1.95 V to 5.5 V ! Very low standby current ! On-chip low voltage detector ! High over-all frequency accuracy ! FSK deviation and center frequency independently adjustable ! Adjustable output power range from -12 dBm to +10 dBm ! Adjustable current consumption from 3.4 mA to 10.6 mA ! Conforms to EN 300 220 and similar standards ! 10-pin Quad Flat No-Lead Package (QFN) Ordering Information Part Number Temperature Code Package Code Delivery Form TH72015 K (-40 °C to 125 °C) LD (10L QFN 3x3 Dual) 120 pc/tray 5000 pc/T&R Application Examples Pin Description ! General digital data transmission ! Tire Pressure Monitoring Systems (TPMS) ! Remote Keyless Entry (RKE) ! Wireless access control ! Alarm and security systems ! Garage door openers ! Remote Controls ! Home and building automation ! Low-power telemetry systems General Description The TH72015 FSK/ASK transmitter IC is designed for applications in the European 433 MHz industrial- scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard; but it can also be used in other countries with similar standards, e.g. FCC part 15.231. The transmitter's carrier frequency fc is determined by the frequency of the reference crystal fref. The inte- grated PLL synthesizer ensures that carrier frequencies, ranging from 380 MHz to 450 MHz, can be achieved. This is done by using a crystal with a reference frequency according to: fref = fc/N, where N = 32 is the PLL feedback divider ratio. |
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