SM1211E915 Semtech, SM1211E915 Datasheet - Page 88
SM1211E915
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
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FCC Part 15.247 allows for systems employing digital modulation techniques to transmit up to 1 W, provided that
the 6 dB bandwidth of the signal is at least 500 kHz and that the power spectral density does not exceed 8dBm in
any 3 kHz bandwidth.
The SX1211 can actually meet these constraints whilst transmitting at the maximum output power of the device of
typ. 10dBm, thanks to the built-in whitening process described in section 5.5.6.2:
Conditions:
Note: Manchester encoding allows meeting an even lower power spectral density, at the expense of the bit rate
efficiency.
Rev 7 – Sept 2
ADVANCED COMMUNICATIONS & SENSING
Pout = +10.6dBm
Fdev = +/-200kHz
BR=100 kbps (Chip rate=100kCps, as data whitening is enabled)
Packet mode, data whitening enabled
7.6.13. Digital Modulation Schemes
nd
, 2008
Figure 86: DTS Power Spectral Density
Figure 85: DTS 6dB Bandwidth
Page 88 of 92
www.semtech.com
SX1211
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