MRF89XAM8A-I Datasheet, PDF (114/140 Pages) Microchip Technology – Ultra Low-Power, Integrated ISM Band Sub-GHz Transceiver

MRF89XA
5.4.2 SENSITIVITY VS. LO DRIFT
FIGURE 5-8:
FSK SENSITIVITY LOSS VS. LO DRIFT
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-25
-20
-15
-10
-1.0
-5
0
5
LO Drift [kHz]
FIGURE 5-9:
OOK SENSITIVITY LOSS VS. LO DRIFT
6.0
10
15
20
25
5.0
4.0
3.0
2.0
1.0
0.0
-1.0
-100
-80
-60
-40
-20
0
20
40
60
80
100
LO Drift [kHz]
Note:
In FSK mode, the default filter setting (“A3” at address 0x16) is kept, leading to f_c = 96 kHz typical. In OOK mode, “F3” is set at address
0x16, leading to (f_c – f_o) = 95 kHz typical. Both of these settings ensure that the channel filter is wide enough, therefore characterizing
the demodulator response and not the filter response.
DS70622C-page 114
Preliminary
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