th71101 Melexis Company, th71101 Datasheet
th71101
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th71101 Summary of contents
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... Garage door openers Remote Controls Home and building automation Low-power telemetry systems General Description The TH71101 FSK/ASK single-conversion superheterodyne receiver IC is designed for applications in the European 433 MHz industrial-scientific-medical telecommunications standard. It can also be used for any other system with carrier frequencies ranging from 300 MHz to 450 MHz (e ...
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... Narrow Band FSK Application Circuit ........................................................................................ 14 4.2.2 Narrow Band FSK Component List............................................................................................ 15 4.3 ASK Reception ............................................................................................................... 16 4.3.1 ASK Application Circuit .............................................................................................................. 16 4.3.2 ASK Component List.................................................................................................................. 17 5 Package Description ................................................................................................18 5.1 Soldering Information ..................................................................................................... 18 6 Reliability Information .............................................................................................19 7 ESD Precautions ......................................................................................................19 8 Disclaimer .................................................................................................................20 39010 71101 Rev. 015 FSK/ASK Receiver Page TH71101 315/433MHz Data Sheet April/08 ...
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... Theory of Operation 1.1 General With the TH71101 receiver chip, various circuit configurations can be arranged in order to meet a number of different customer requirements. For FSK reception the IF tank used in the phase coincidence demodulator can be constituted by an external ceramic discriminator. In ASK configuration, the RSSI signal is fed to an ASK detector, which is constituted by the operational amplifier ...
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... Rev. 015 MIX2 IFA PFD DIV_16 Fig. 1: TH71101 block diagram Mode RX standby RX active Mode LOW GAIN Page TH71101 315/433MHz FSK/ASK Receiver OUTP MIX3 23 OUTN 24 OAP 20 OA OAN 19 ...
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... By using the internal PLL synthesizer of the TH71101 with the fixed feedback divider ratio (DIV_16), two types of down-conversion are possible: low-side injection of LO and high-side injection of LO. The following table summarizes some equations that are useful to calculate the crystal reference frequency (REF) and the LO frequency, for a given RF and IF ...
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... IF1P 6 2x500µA VEE VEE 6.8k Ω OUT_MIX2 130 9 230µA Page TH71101 315/433MHz FSK/ASK Receiver Description LNA open-collector output connected to external LC tank that resonates at RF LNA input, approx. 26Ω single-ended ground of LNA core (cas- code) LNA gain control ...
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... OUT_OA 50 18 20µA OAN Ω Ω Page TH71101 315/433MHz FSK/ASK Receiver Description IFA input, approx. 2.2kΩ input impedance connected to external IFA feedback capacitor to be connected to external IFA feedback capacitor positive supply of IFA and DEMOD IFA output and MIX3 input ...
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... ENRX 1.5k 28 Ω LF 200 29 Ω 400 4p Page TH71101 315/433MHz FSK/ASK Receiver Description RSSI output, for RSSI and ASK detection, approx. 36kΩ output impedance ground of general bias system and OA FSK positive output, output impedance of 100kΩ to 300kΩ FSK negative output, output impedance of 100kΩ ...
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... LO LO ref Δf R NRZ, C15 = NIP, 5) FSK R NRZ, C16 = NIP, 5) ASK Symbol Condition f fundamental mode Page TH71101 315/433MHz FSK/ASK Receiver Min Max Unit 0 7 0 dBm -40 +125 °C +150 °C 60 K/W 0.1 W -1.0 +1 ...
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... ENRX=1 IHGAIN V ENRX=1 ILGAIN V offs I I – I offs OAP OAN I 0 bias OAP OAN -65 dBm, RSSI, low i GAIN_LNA -35 dBm, RSSI, high i GAIN_LNA=1 Page TH71101 315/433MHz FSK/ASK Receiver Min Typ Max Unit 50 100 nA 4.0 6.5 12.0 mA 4.5 8.2 14.0 mA -0.3 0.3*V cc 0.7 µA 0.05 µA 0.05 µ ...
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... GAIN_LNA = 1 P spur ΔP imag T ENRX from XTL T ENRX from depends on data slicer time constant, valid data at output K VCO I CP Page TH71101 315/433MHz FSK/ASK Receiver Min Typ Max Unit -104 dBm -108 dBm -110 dBm 0 dBm -10 dBm -70 dBm ...
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... OUT_MIX2 VCC CB* * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Fig. 2: Test circuit for FSK reception Page TH71101 315/433MHz FSK/ASK Receiver CERDIS 16 C12 15 VCC 14 C11 C10 CERFIL ...
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... Telcona/Horizon or equivalent part B = 840 kHz low-loss SAW filter from Murata, or equivalent part 3dB B = 180 kHz ceramic filter from Murata, or equivalent part 3dB ceramic discriminator from Murata, or equivalent part Page TH71101 315/433MHz FSK/ASK Receiver Description Data Sheet April/08 ...
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... IN_LNA VEE 32 OUT_MIX2 VCC CB* * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Page TH71101 315/433MHz FSK/ASK Receiver CP 16 C12 15 CERDIS VCC 14 C11 C10 CERFIL VCC Data Sheet ...
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... SAW filter from Murata, or equivalent part 3dB kHz ceramic filter from Murata, or equivalent part 3dB kHz optional, ceramic filter from Murata, or equivalent part 3dB ceramic discriminator from Murata, or equivalent part Page TH71101 315/433MHz FSK/ASK Receiver Description Data Sheet April/08 ...
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... VCC CB* * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Fig. 5: Test circuit for ASK reception Page TH71101 315/433MHz FSK/ASK Receiver 16 15 VCC 14 C11 C10 CERFIL VCC ...
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... Telcona/Horizon or equivalent part B = 840 kHz low-loss SAW filter from Murata, or equivalent part 3dB B = 180 kHz ceramic filter from Murata, or equivalent part 3dB kHz optional, ceramic filter from Murata, or equivalent part 3dB Page TH71101 315/433MHz FSK/ASK Receiver Description Data Sheet April/08 ...
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... E, D min 7.00 9.00 max All Dimension in inch, coplanaríty < 0.004” min 0.276 0.354 max 5.1 Soldering Information • The device TH71101 is qualified for MSL3 with soldering peak temperature 260 deg C according to JEDEC J-STD-20. 39010 71101 Rev. 015 12° ...
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... ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 39010 71101 Rev. 015 FSK/ASK Receiver Page TH71101 315/433MHz Data Sheet April/08 ...
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... Or for additional information contact Melexis Direct: Europe, Africa: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com 39010 71101 Rev. 015 www.melexis.com Americas: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com ISO/TS 16949 and ISO14001 Certified Page TH71101 315/433MHz FSK/ASK Receiver Asia: Phone: +32 1367 0495 E-mail: sales_asia@melexis.com Data Sheet April/08 ...