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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LLCC68 датащи(PDF) 18 Page - Semtech Corporation |
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LLCC68 датащи(HTML) 18 Page - Semtech Corporation |
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18 / 106 page  LLCC68 Data Sheet Rev. 1.0 DS.LLCC68.W.APP July 2019 18 of 106 Semtech www.semtech.com 3.5.2 General Specifications Table 3-7: General Specifications Symbol Description Conditions Min Typ Max Unit FR Synthesizer frequency range - 150 - 960 MHz FSTEP Synthesizer frequency step Bit 2 of TxModulation = 1 (main use) Bit 2 of TxModulation = 0 (see Section 15.) - - 0.95 122 - - Hz Hz PHN1 2 Synthesizer phase noise (for 868 / 915 MHz) 1 kHz offset 10 kHz offset 100 kHz offset 1MHz offset 10 MHz offset - - - - - -75 -95 -100 -120 -135 - - - - - dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz TS_FS Synthesizer wake-up time From STDBY_XOSC mode - 40 - s TS_OSC Crystal oscillator wake-up time from STDBY_RC3 - 150 - s OSC_TRM Crystal oscillator trimming range for crystal frequency error compensation 4 +/-15 +/-30 - ppm BR_F Bit rate, FSK Programmable Minimum modulation index is 0.5 0.6 - 300 5 kb/s FDA Frequency deviation, FSK Programmable FDA + BR_F / 2 250 kHz 0.6 - 200 kHz BR_L Bit rate LoRa® Min. for SF9, BW_L = 125 kHz Max. for SF5, BW_L = 500 kHz 1.76 - 62.5 6 kb/s BW_L Signal BW, LoRa® Programmable 125 - 500 6 kHz SF Spreading factor for LoRa® Programmable, chips/symbol = 2^SF 5 - 97 108 119 - VTCXO Regulated voltage range for TCXO voltage supply Min/Max values in typical conditions, Typ value for default setting VDDop > VTCXO + 200 mV 1.6 1.7 3.3 V ILTCXO Load current for TCXO regulator -1.5 4 mA TSVTCXO Start-up time for TCXO regulator From enable to regulated voltage within 25 mV from target -- 100 s |
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