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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) 19 Page - Semtech Corporation |
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LLCC68 датащи(HTML) 19 Page - Semtech Corporation |
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19 / 111 page  LLCC68 Data Sheet Rev. 1.1 DS.LLCC68.W.APP Dec 2024 19 of 111 Semtech LLCC68 www.semtech.com 3.5.3 Receive Mode Specifications 5. Maximum bit rate is assumed to scale with RF frequency; for example 500kb/s in the 869/915MHz frequency bands and only 50kb/s at 150MHz. . Please contact Semtech representative for more details. 6. For RF frequencies below 400MHz, there is a scaling between the frequency and supported BW, some BW may not be available below 400MHz 7. LoRa BW = 125kHz. 8. LoRa BW = 250kHz. 9. LoRa BW = 500kHz. Table 3-8: Receive Mode Specifications (Sheet 1 of 2) Symbol Description Conditions Min Typ Max Unit RXS_2FB Sensitivity 2-FSK, RX Boosted gain, see Section 9.6 "Receive (RX) Mode" on page 57 , split RF paths for Rx and Tx, RF switch insertion loss excluded BR_F = 0.6kb/s, FDA = 0.8kHz, BW_F = 4kHz BR_F = 1.2kb/s, FDA = 5kHz, BW_F = 20kHz BR_F = 4.8kb/s, FDA = 5kHz, BW_F = 20kHz BR_F = 38.4kb/s, FDA = 40kHz, BW_F = 160kHz BR_F = 250kb/s, FDA = 125kHz, BW_F = 500kHz BR_F = 500kb/s, FDA = 300kHz, BW_F = 1000kHz1 - - - - - - -125 -123 -118 -109 -104 -94 - - - - - - dBm dBm dBm dBm dBm dBm RXS_LB Sensitivity LoRa, Rx Boosted gain, see Section 9.6 "Receive (RX) Mode" on page 57 , split RF paths for Rx and Tx, RF switch insertion loss excluded BW_L = 125kHz, SF = 7 BW_L = 125kHz, SF = 9 BW_L = 250kHz, SF = 7 BW_L = 250kHz, SF = 10 BW_L = 500kHz, SF = 7 BW_L = 500kHz, SF = 11 - - - - - - -124 -129 -121 -129 -117 -127 - - - - - - dBm dBm dBm dBm dBm dBm RXS_2F Sensitivity 2-FSK Rx Power Saving gain with direct tie connection between Rx and Tx BR_F = 4.8kb/s, FDA = 5kHz, BW_F = 20kHz - -115 - dBm RXS_L Sensitivity LoRa Rx Power Saving gain with direct tie connection between Rx and Tx BW_L = 125kHz, SF = 9 - -125 - dBm 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 = +/- 50kHz - 45 - dB ACR_L Adjacent channel rejection, LoRa Offset = +/- 1.5 x BW_L BW_L = 125kHz, SF = 7 BW_L = 125kHz, SF = 9 - - 60 65 - - dB dB BI_F Blocking immunity, FSK BR_F = 4.8kb/s, FDA = 5kHz, BW_F = 20kHz Offset = +/- 1MHz Offset = +/- 2MHz Offset = +/- 10MHz BR_F = 500kb/s, FDA = 300kHz, BW_F = 1000kHz Offset = +/- 1MHz Offset = +/- 2MHz Offset = +/- 10MHz - - - - - - 68 70 80 45 50 60 - - - - - - dB dB dB dB dB dB BI_L Blocking immunity, LoRa BW_L = 125kHz, SF =9 Offset = +/- 1MHz Offset = +/- 2MHz Offset = +/- 10MHz - - - 80 82 91 - - - dB dB dB |
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