Data Sheet

LAMBDA62 LoRa Transceiver
DS-LAMBDA62-6
Page 5
Block Diagram
The LAMBDA62 is a ready to use application of the Semtech SX1262.
Access to the programming and configuration of Semtech 1262 Transceiver are via the modules inter-
face SPI line.
The LAMBDA62 has been developed with Semtech to provide a low cost platform application of the
1262
transceiver. This offers optimal design realisation and easy integration within the end application.
The most important aspect of any RF Module is to maximise the performance of the transceiver at the
external module pads.
In particular the impedance matching network which is the most sensitive section of the RF module de-
sign.
In order to maximise signal propagation to the external pad of the module, a specific layout is required
which is not (usually) the smallest physical size (beware of small RF modules!).
Many RF Module manufacturers simply reproduce the IC manufacturers data characteristics where in
practice the Module RF performance is considerably lower.
We have measured the conducted power transmitted from the LAMBDA62 ufl connector at +22.4dBm,
which demonstrates the efficiency of the LAMBDa62 module.
To ensure that the latest details in programming this device are offered, we have not included the
1262s programming information in this document.
You can find the datasheet at the link below:
SX1262 Datasheet
Programming, configuration and further resource data including;
LoRa Calculator: fast evaluation of link budget, time on air and energy consumption.
Packet Error Rate Firmware User Guide.
LoRa Modem Designer's Guide.
is available from Semtech at the below links
Semtec Website
Application Resources
SDI
SDO
SCLK
nSEL
S
P
I
XTAL
RF
IC
DIO
0 - 5
LNA
PA
Battery Voltage
Detector
RF
Switch
RF
MATCHING
CIRCUIT
ANT
RX SWITCH
TX SWITCH