User's Manual

 2017 Microchip Technology Inc. Preliminary DS00000000A-page 3
LG8271/LG9271
1.0 DEVICE OVERVIEW
The LG8271/LG9271 transceiver modules feature
LoRa Technology RF modulation, which provides long
range spread spectrum communication with high
interference immunity.
Each module supports eight (8) receive channels
allowing it to receive up to eight LoRa Technology
modulated packets simultaneously. By using LoRa
Technology modulation technique, LG8271/LG9271
can achieve a receiver sensitivity of -146 dBm. When
combined with LoRa Technology transmission devices,
the LG8271/LG9271 can provide a system with
industry leading link budget, which makes it optimal for
applications requiring extended range and robustness.
The LG8271/LG9271 modules also contain an inte-
grated output power amplifier (LNA) providing optimal
downlink signal levels.
LoRa Technology modulation also provides significant
advantages in both blocking and selectivity compared
to the conventional modulation techniques, solving the
traditional design compromise between extended
range, interference immunity, and low-power
consumption.
The LG8271/LG9271 modules deliver exceptional RF
selectivity and their multi-channel performance make
them ideal for use in LoRa Technology gateway
applications.
Figure 1-1, Figure 1-2 and Figure 1-3 show the top and
bottom view, the pinout, and the block diagram of the
modules.
FIGURE 1-1: TOP VIEW
FIGURE 1-2: PIN DIAGRAM