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S2-LPS датащи(PDF) 14 Page - STMicroelectronics |
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S2-LPS датащи(HTML) 14 Page - STMicroelectronics |
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14 / 73 page ![]() 3.8.1 Blocking and selectivity at 433 MHz Table 17. Blocking and selectivity at 433 MHz Parameter Test condition HPM SMPS on (typ.) LPM SMPS ON typ. Unit Selectivity and blocking 1% BER @ 2-GFSK BT=0.5 20 kHz FDEV, DR = 38.4 kbps, CHF = 100 kHz +100 kHz (adjacent channel) 50 37 dB -100 kHz (adjacent channel) 50 37 +200 kHz (alternate channel) 51 45 -200 kHz (alternate channel) 51 45 Image rejection 56 58 ±2 MHz 67 67 ±10 MHz 69 72 3.8.2 Sensitivity at 433 MHz Table 18. Sensitivity at 433 MHz Parameter Test conditions HPM/LPM SMPS on (typ.) Unit Sensitivity 1% BER @ 2-GFSK BT = 0.5 DR = 38.4 kbps, FDEV = 20 kHz, CHF = 100 kHz -109 dBm Sensitivity 1% BER @ OOK DR = 0.3 kbps, CHF = 1 kHz -120 dBm DR = 1.2 kbps, CHF = 4 kHz -118 DR = 38.4 kbps, CHF = 100 kHz -104 3.8.3 Blocking and selectivity at 840-868 MHz Table 19. Blocking and selectivity @ 840-868 MHz Parameter Test conditions HPM SMPS on (typ.) LPM SMPS on (typ.) Unit Selectivity and blocking 1% BER @ 2-GFSK BT = 0.5, 20 kHz FDEV, DR = 38.4 kbps, CHF = 100 kHz +100 kHz (adjacent channel) 44 33 dB -100 kHz (adjacent channel) 44 33 +200 kHz (alternate channel) 45 39 -200 kHz (alternate channel) 45 39 Image rejection 50 55 ± 2 MHz 67 70 ± 10 MHz 69 73 S2-LPS RF receiver DS13831 - Rev 1 page 14/73 |
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