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Texas Instruments CC1101 - Page 45

Texas Instruments CC1101
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CC1101
SWRS061H Page 45 of 98
4) Else if RSSI_dec < 128 then RSSI_dBm =
(RSSI_dec)/2 RSSI_offset
Table 31 gives typical values for the
RSSI_offset. Figure 22 and Figure 23 show
typical plots of RSSI readings as a function of
input power level for different data rates.
Data rate [kBaud]
RSSI_offset [dB], 433 MHz
RSSI_offset [dB], 868 MHz
1.2
74
74
38.4
74
74
250
74
74
500
74
74
Table 31: Typical RSSI_offset Values
Figure 22: Typical RSSI Value vs. Input Power Level for Different Data Rates at 433 MHz
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Input Power [dBm]
RSSI Readout [dBm]
1.2 kBaud
38.4 kBaud
250 kBaud
500 kBaud

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