SX1211I084TRT Semtech, SX1211I084TRT Datasheet - Page 88

• Manufacturer Part Number: SX1211I084TRT
• Description: IC SNGL-CHIP TXRX 32-TQFN
• Manufacturer: Semtech

Specifications of SX1211I084TRT

• Frequency: 860 ~ 960MHz
• Data Rate - Maximum: 200kbps
• Modulation Or Protocol: FSK, OOK
• Applications: AMR, ISM, Security and Access
• Power - Output: 12.5dBm
• Sensitivity: -113dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 3mA
• Current - Transmitting: 25mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFN
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Modulation Type: FSK/OOK
• Package Type: TQFN EP
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: SX1211I084TRT

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
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