User's Manual
Table Of Contents
- Low-Power Long Range (LoRa®) Technology Gateway Module for US (LG9271) and EU (LG8271)
- 1.0 Device Overview
- 2.0 General Specifications
- TABLE 2-1: General Specification
- TABLE 2-2: Electrical Characteristics
- TABLE 2-3: RF Receiver Characteristics
- TABLE 2-4: LoRa Technology Data Rate (bps) and Sensitivity versus Spreading Factor (SF)
- TABLE 2-5: CURRENT CONSUMPTION (3.3V)
- TABLE 2-6: Module Dimensions
- TABLE 2-7: RF OUTPUT POWER (dBm) versus TX POWER SETTING (nominal)
- 3.0 Typical Hardware Connections
- 4.0 Application Information
- 5.0 Regulatory Approval
- Appendix A: Revision History
- Worldwide Sales and Service
2017 Microchip Technology Inc. Preliminary DS00000000A-page 9
LG8271/LG9271
Table 2-5 through Table 2-7 provide the current
consumption, dimensions of the modules and the RF
output power versus TX power settings.
TABLE 2-5: CURRENT CONSUMPTION
(3.3V)
Mode
Current
(Typical) mA
Current (Max.)
mA
RF Idle 75 100
RX Active 570 850
TX Active 570 900
TABLE 2-6: MODULE DIMENSIONS
Parameter Value
Dimensions 90.0 x 30.0 mm
Weight 16g
TABLE 2-7: RF OUTPUT POWER (DBM) VERSUS TX POWER SETTING (NOMINAL)
Setting Power Setting Power Setting Power Setting Power Setting Power
-6 -6 1 0 8 6 15
(1)
14 22
(1)
20
-5 -6 2 0 9 6 16
(1)
16 23
(1)
23
-4 -6 3 3 10 10 17
(1)
16 24
(1)
23
-3 -3 4 3 11 11 18
(1)
16 25
(1)
25
-2 -3 5 3 12 12 19
(1)
16 26
(1)
26
-1 -3 6 6 13 13 20
(1)
20 27
(1)
27
00 7 614
(1)
14 21
(1)
20
Note 1: Power settings 14 - 27 may violate ETSI maximum RF transmit power levels. Verify RF output power
before using these settings.