SM1211E915 Semtech, SM1211E915 Datasheet - Page 78

• Manufacturer Part Number: SM1211E915
• Description: Dev Kit Accessory
• Manufacturer: Semtech

Specifications of SM1211E915

• Modulation Type: FSK, OOK
• Data Rate Max: 200Kbps
• Frequency Range: 902MHz To 928MHz
• Supply Voltage Range: 2.1V To 3.6V
• Module Interface: SPI
• Supply Current: 25mA
• Accessory Type: RF Module
• Sensitivity: -105dBm
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: TQFN EP
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Sensitivity (dbm): -105dBm
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

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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