SM1211E915TOPIC Semtech, SM1211E915TOPIC Datasheet - Page 78

• Manufacturer Part Number: SM1211E915TOPIC
• Description: KIT PICTAIL EXT FOR SX1211
• Manufacturer: Semtech
• Type: Transceiver, UHFr

Specifications of SM1211E915TOPIC

• Frequency: 915MHz
• For Use With/related Products: SX1211
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Notes:
Rev 7 – Sept 2
ADVANCED COMMUNICATIONS & SENSING
In FSK Mode, the default filter setting (“A3” at address $16) is kept, leading to Fc=96 kHz typ.
In OOK Mode, “F3” is set at address $16, leading to (Fc-Fo)=95 kHz typ.
The above ensures that the channel filter is wide enough, therefore characterizing the demodulator response,
and NOT the filter response.
7.6.2. Sensitivity vs. LO Drift
nd
, 2008
-25
-100
-20
-80
Figure 64: OOK Sensitivity Loss vs. LO Drift
Figure 63: FSK Sensitivity Loss vs. LO Drift
-15
-60
-10
-40
Sensitivity Loss vs. LO Drift
Sensitivity Loss vs. LO Drift
-20
-5
Page 78 of 92
LO Drift [kHz]
LO Drift [kHz]
-1.0
-1.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
0
20
5
40
10
60
15
80
20
100
25
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SX1211