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STM32WLE4JC 数据表(PDF) 72 Page - STMicroelectronics |
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STM32WLE4JC 数据表(HTML) 72 Page - STMicroelectronics |
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72 / 145 page  Electrical characteristics STM32WLE5/E4xx 72/145 DS13105 Rev 8 BI_L Blocking immunity, LoRa Offset = ±1 MHz, BW = 125 kHz, SF = 12 -87 - dB Offset = ±2 MHz, BW = 125 kHz, SF = 12 -91 - Offset = ±10 MHz, BW = 125 kHz, SF = 12 -96 - IIP3 Third order input intercept point Unwanted tones are 1 MHz and 1.96 MHz above LO. 868 to 915 MHz band -–9 - dBm Unwanted tones are 1 MHz and 1.96 MHz above LO. 433 MHz band - –15 - IMA Image attenuation Without IQ calibration - 30 - dB With IQ calibration - 54 - BW_F DSB channel filter BW, FSK Programmable, typical values 4.8 - 467 kHz TS_RX Receiver wakeup time FS to RWX - 41 - µs FERR_L Maximum tolerated frequency offset between transmitter and receiver, SF7 to SF12 All bandwidths, ±25 % of BW. The tighter limit between this line and the three lines below applies. -±25 - BW Maximum tolerated frequency offset between transmitter and receiver, SF10 to SF12 SF12 –50 - 50 ppm SF11 –100 - 100 SF10 –200 - 200 Table 30. Sub-GHz radio receive mode specifications (continued) Symbol Description Conditions Min Typ Max Unit Table 31. Sub-GHz radio transmit mode specifications Symbol Description Conditions Min Typ Max Unit TXOP Max RF output power Highest power step setting for low-power PA (LP PA) -+15(1) - dBm Highest power step setting for high-power PA (HP PA) -+22 - TXDRP RF output power drop versus supply voltage LP PA, under SMPS or LDO VDDop range from 1.8 to 3.7 V -0.5 - dB HP PA, +22 dBm, VDD = 2.7 V - 2 - HP PA, +22 dBm, VDD = 2.4 V - 3 - HP PA, +22 dBm, VDD = 1.8 V - 6 - TXPRNG RF output power range Programmable in 31 steps, typical value TXOP-31 - TXOP dBm TXACC RF output power step accuracy -- ±2 - dB |
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