WISOL SFM10R2 Users manual

WISOL

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Item

Vendor

Part Number

Sigfox

ON semiconductor

AX-SFUS-1-01

User manual of SFM10R2

1. Introduction

The module is a SIGFOX only module able to transmit and receive messages using the SIGFOX network.
The Sigfox chipset is from ON semiconductor, part number AX-SFUS-1-01.

2. Hardware Architecture:

2.1 Main Chipset Information

2.2 Circuit Block Diagram

The major internal and external block diagram of Module is illustrated in Figure 1-1.

Figure 1-1 Module block diagram and Interface

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3. Operational Description

This Module able to transmit and receive messages using the SIGFOX network.
This module addresses the RCZ2 zone (North America).

- Features
> Sigfox up-link and down-link functionality controlled by AT commands

> Temperature sensor
> Ultra-low power consumption
> High performance narrow-band Sigfox

- Time base of the RF frequency

For Sigfox RF frequency, a TCXO(48MHz) is a clock reference.

- Transmission

The Tx path produces a DBPSK-modulated signal. modulate RF signal generated by the synthesizer. The
modulated RF signal is fed to the integrated RX/TX switch and antenna interface and then out of the AX­SFEU-1-01.

- Receiver

The Rx path is able to receive 905.2MHz signal and the noise amplifier is built in the inside of the chip, it

amplifies the received signal by the low noise amplifier according to the receiving intensity, and the
amplified signal is converted into the digital signal through the ADC, Packets will be interpreted.

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Sigfox zone

Uplink(TX)

Downlink(RX)

RCZ2(North America)

902.2MHz

905.2MHz

- Product Details

> Data Modulation

Sigfox : TX- DBPSK

RX- 2GFSK

> Frequency :