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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) 20 Page - Semtech Corporation |
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LLCC68 датащи(HTML) 20 Page - Semtech Corporation |
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20 / 106 page  LLCC68 Data Sheet Rev. 1.0 DS.LLCC68.W.APP July 2019 20 of 106 Semtech www.semtech.com CCR_F Co-channel rejection, FSK --9- dB CCR_L Co-channel rejection, LoRa® SF = 7 SF = 11 - - 5 16 - - dB dB ACR_F Adjacent channel rejection, FSK Offset = +/- 50 kHz - 45 - dB ACR_L Adjacent channel rejection, LoRa® Offset = +/- 1.5 x BW_L BW_L = 125 kHz, SF = 7 BW_L = 125 kHz, SF = 9 - - 60 65 - - dB dB BI_F Blocking immunity, FSK BR_F = 4.8 kb/s, FDA = 5 kHz, BW_F = 20 kHz Offset = +/- 1 MHz Offset = +/- 2 MHz Offset = +/- 10 MHz - - - 68 70 80 - - - dB dB dB BI_L Blocking immunity, LoRa® BW_L = 125 kHz, SF =9 Offset = +/- 1 MHz Offset = +/- 2 MHz Offset = +/- 10 MHz - - - 80 82 91 - - - dB dB dB IIP3 3rd order input intercept point Unwanted tones are 1 MHz and 1.96 MHz above LO --5- dBm IMA Image attenuation Without IQ calibration With IQ calibration - - 35 54 - - dB dB BW_F DSB channel filter BW, FSK Programmable, typical values 4.8 - 467 kHz TS_RX Receiver wake-up time FS to RX - 41 - s FERR_L Maximum tolerated frequency offset between transmitter and receiver, no sensitivity degradation, SF5 to SF11 All bandwidths, ±25% of BW The tighter limit applies (see below) ±25% BW Maximum tolerated frequency offset between transmitter and receiver, no sensitivity degradation, SF10 to SF11 SF11 SF10 -100 -200 - - 100 200 ppm ppm Table 3-8: Receive Mode Specifications Symbol Description Conditions Min Typ Max Unit |
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