Specifications

CC1101
SWRS061I Page 13 of 98
Table 7: RF Receive Section
Parameter
Min
Typ
Max
Unit
Condition/Note
Blocking
±2 MHz offset
±10 MHz offset
-50
-40
dBm
dBm
Desired channel 3 dB above the sensitivity limit
See Figure 4 for blocking performance at other offset
frequencies
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
Sensitivity can be traded for current consumption by setting
MDMCFG2.DEM_DCFILT_OFF=1. The typical current
consumption is then reduced from 17.7 mA to 15.6 mA at the
sensitivity limit. The sensitivity is typically reduced to -102
dBm
Saturation
–16
dBm
FIFOTHR.CLOSE_IN_RX=0. See more in DN010 [8]
Adjacent channel rejection
-200 kHz offset
+200 kHz offset
12
25
dB
dB
Desired channel 3 dB above the sensitivity limit.
200 kHz channel spacing
See Figure 5 for blocking performance at other offset
frequencies
Image channel rejection
23
dB
IF frequency 152 kHz
Desired channel 3 dB above the sensitivity limit
Blocking
±2 MHz offset
±10 MHz offset
-50
-40
dBm
dBm
Desired channel 3 dB above the sensitivity limit
See Figure 5 for blocking performance at other offset
frequencies
250 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(GFSK, 1% packet error rate, 20 bytes packet length, 127 kHz deviation, 540 kHz digital channel filter bandwidth)
Receiver sensitivity
–95
dBm
Sensitivity can be traded for current consumption by setting
MDMCFG2.DEM_DCFILT_OFF=1. The typical current
consumption is then reduced from 18.9 mA to 16.9 mA at the
sensitivity limit. The sensitivity is typically reduced to -91 dBm
Saturation
–17
dBm
FIFOTHR.CLOSE_IN_RX=0. See more in DN010 [8]
Adjacent channel rejection
25
dB
Desired channel 3 dB above the sensitivity limit.
750 kHz channel spacing
See Figure 6 for blocking performance at other offset
frequencies
Image channel rejection
14
dB
IF frequency 304 kHz
Desired channel 3 dB above the sensitivity limit
Blocking
±2 MHz offset
±10 MHz offset
-50
-40
dBm
dBm
Desired channel 3 dB above the sensitivity limit
See Figure 6 for blocking performance at other offset
frequencies
500 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(MSK, 1% packet error rate, 20 bytes packet length, 812 kHz digital channel filter bandwidth)
Receiver sensitivity
–90
dBm
MDMCFG2.DEM_DCFILT_OFF=1 cannot be used for data
rates > 250 kBaud
Image channel rejection
1
dB
IF frequency 355 kHz
Desired channel 3 dB above the sensitivity limit
Blocking
±2 MHz offset
±10 MHz offset
-50
-40
dBm
dBm
Desired channel 3 dB above the sensitivity limit
See Figure 7 for blocking performance at other offset
frequencies
4-FSK, 125 kBaud data rate (250 kbps), sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(1% packet error rate, 20 bytes packet length, 127 kHz deviation, 406 kHz digital channel filter bandwidth)
Receiver sensitivity
-96
dBm
4-FSK, 250 kBaud data rate (500 kbps), sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(1% packet error rate, 20 bytes packet length, 254 kHz deviation, 812 kHz digital channel filter bandwidth)
Receiver sensitivity
-91
dBm
4-FSK, 300 kBaud data rate (600 kbps), sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(1% packet error rate, 20 bytes packet length, 228 kHz deviation, 812 kHz digital channel filter bandwidth)
Receiver sensitivity
-89
dBm