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CC1101 Datasheet(PDF) 10 Page - Texas Instruments |
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CC1101 Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 94 page  CC1101 SWRS061C Page 10 of 93 4.2 RF Receive Section Tc = 25 °C, VDD = 3.0V if nothing else stated. All measurement results are obtained using the CC1101EM reference designs ([5] and [6]). Parameter Min Typ Max Unit Condition/Note Digital channel filter bandwidth 58 812 kHz User programmable. The bandwidth limits are proportional to crystal frequency (given values assume a 26.0 MHz crystal). 315 MHz, 1.2 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0 (2-FSK, 1% packet error rate, 20 bytes packet length, 5.2 kHz deviation, 58 kHz digital channel filter bandwidth) Receiver sensitivity -111 dBm Sensitivity can be traded for current consumption by setting MDMCFG2.DEM_DCFILT_OFF=1 . The typical current consumption is then reduced from 17.2 mA to 15.4 mA at sensitivity limit. The sensitivity is typically reduced to -109 dBm 315 MHz, 500 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0 (MDMCFG2.DEM_DCFILT_OFF=1 cannot be used for data rates > 250 kBaud) (MSK, 1% packet error rate, 20 bytes packet length, 812 kHz digital channel filter bandwidth) -88 dBm 433 MHz, 1.2 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0 (GFSK, 1% packet error rate, 20 bytes packet length, 5.2 kHz deviation, 58 kHz digital channel filter bandwidth Receiver sensitivity -112 dBm Sensitivity can be traded for current consumption by setting MDMCFG2.DEM_DCFILT_OFF=1 . The typical current consumption is then reduced from 18.0 mA to 16.0 mA at sensitivity limit. The sensitivity is typically reduced to -110 dBm 433 MHz, 38.4 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0 (GFSK, 1% packet error rate, 20 bytes packet length, 20 kHz deviation, 100 kHz digital channel filter bandwidth) Receiver sensitivity –104 dBm 433 MHz, 250 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0 (MSK, 1% packet error rate, 20 bytes packet length, 127 kHz deviation, 540 kHz digital channel filter bandwidth) Receiver sensitivity -95 dBm 868 MHz, 1.2 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0 (2-FSK, 1% packet error rate, 20 bytes packet length, 5.2 kHz deviation, 58 kHz digital channel filter bandwidth) Receiver sensitivity –111 dBm Sensitivity can be traded for current consumption by setting MDMCFG2.DEM_DCFILT_OFF=1 . The typical current consumption is then reduced from 18.0 mA to 15.7 mA at sensitivity limit. The sensitivity is typically reduced to -109 dBm Saturation –14 dBm FIFOTHR.CLOSE_IN_RX=0 Adjacent channel rejection 37 dB Desired channel 3 dB above the sensitivity limit. 100 kHz channel spacing Alternate channel rejection 37 dB Desired channel 3 dB above the sensitivity limit. 100 kHz channel spacing See Figure 24 for plot of selectivity versus frequency offset Image channel rejection, 868MHz 31 dB IF frequency 152 kHz Desired channel 3 dB above the sensitivity limit. 868 MHz, 38.4 kBaud data rate, sensitivity optimized (GFSK, 1% packet error rate, 20 bytes packet length, 20 kHz deviation, 100 kHz digital channel filter bandwidth) Receiver sensitivity –103 dBm Saturation –16 dBm Adjacent channel rejection 20 dB Desired channel 3 dB above the sensitivity limit. 200 kHz channel spacing Alternate channel rejection 30 dB Desired channel 3 dB above the sensitivity limit. 200 kHz channel spacing See Figure 25 for plot of selectivity versus frequency offset Image channel rejection, 868MHz 23 dB IF frequency 152 kHz Desired channel 3 dB above the sensitivity limit. |
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