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PDF AX-SIGFOX Data sheet ( Hoja de datos )
| Número de pieza | AX-SIGFOX | |
| Descripción | Sigfox Compliant Transceiver IC | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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AX-SIGFOX
Ultra-Low Power,
AT Command Controlled,
Sigfox) Compliant
Transceiver IC for Up-Link
and Down-Link
www.onsemi.com
OVERVIEW
Circuit Description
AX−Sigfox is an ultra−low power single chip solution for
a node on the Sigfox network with both up− and down−link
functionality. The AX−Sigfox chip is delivered fully ready
for operation and contains all the necessary firmware to
transmit and receive data from the Sigfox network in
Europe. It connects to the customer product using a logic
level RS232 UART. AT commands are used to send frames
and configure radio parameters.
Features
Functionality and Ecosystem
• Sigfox up−link and down−link functionality controlled
by AT commands
• The AX−Sigfox IC is part of a whole development and
product ecosystem available from ON Semiconductor
for any Sigfox requirement. Other parts of the
ecosystem include
♦ Ready to go AX−Sigfox development kit with fully
functional AX−Sigfox module including Sigfox
subscription
♦ Sigfox Ready® certified reference design for the
AX−Sigfox IC
♦ MiniStamp by ON Semiconductor Sigfox modules
with SMA connector or chip antenna
♦ AX−Sigfox−API IC for customers wishing to write
their own application software based on the AXSEM
Sigfox Library
General Features
• QFN40 5 mm x 7 mm package
• Supply range 1.8 V − 3.6 V
• −40°C to 85°C
• Temperature sensor
• Supply voltage measurements
• 10 GPIO pins
♦ 4 GPIO pins with selectable voltage measure
functionality, differential (1 V or 10 V range) or
single ended (1 V range) with 10 bit resolution
♦ 2 GPIO pins with selectable sigma delta DAC
output functionality
♦ 2 GPIO pins with selectable output clock
♦ 3 GPIO pins selectable as SPI master interface
♦ Integrated RX/TX switching with differential
antenna pins
Power Consumption
• Ultra−low Power Consumption:
♦ Charge required to send a Sigfox OOB packet at
14 dBm output power: 0.28 C
♦ Deepsleep mode current: 100 nA
♦ Sleep mode current: 1.3 mA
♦ Standby mode current: 0.5 mA
♦ Continuous radio RX−mode at 869.525 MHz :
10 mA
♦ Continuous radio TX−mode at 868.130 MHz
19 mA @ 0 dBm
49 mA @ 14 dBm
High Performance Narrow−band Sigfox RF Transceiver
• Receiver
♦ Carrier frequency 869.525 MHz
♦ Data−rate 600 bps FSK
♦ Sensitivity
−126 dBm @ 600 bps, 869.525 MHz, GFSK
♦ 0 dBm maximum input power
• Transmitter
♦ Carrier frequency 868.13 MHz
♦ Data−rate 100 bps PSK
♦ High efficiency, high linearity integrated power
amplifier
♦ Maximum output power 14 dBm
♦ Power level programmable in 1 dBm steps
Applications
Sigfox networks up−link and down−link.
© Semiconductor Components Industries, LLC, 2016
March, 2016 − Rev. 3
1
Publication Order Number:
AX−SIGFOX/D
1 page  
AX−SIGFOX
SPECIFICATIONS
Table 3. ABSOLUTE MAXIMUM RATINGS
Symbol
Description
Condition
Min Max Units
VDD_IO
Supply voltage
−0.5 5.5 V
IDD Supply current
200 mA
Ptot Total power consumption
Pi
Absolute maximum input power at receiver input
ANTP and ANTN
pins in RX mode
800 mW
10 dBm
II1 DC current into any pin except ANTP, ANTN
II2 DC current into pins ANTP, ANTN
IO Output Current
Via Input voltage ANTP, ANTN pins
Input voltage digital pins
−10 10 mA
−100 100 mA
40 mA
−0.5 5.5 V
−0.5 5.5 V
Ves Electrostatic handling
HBM
−2000
2000
V
Tamb
Operating temperature
−40 85 °C
Tstg Storage temperature
−65 150 °C
Tj Junction Temperature
150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
www.onsemi.com
5
5 Page 
AX−SIGFOX
COMMAND INTERFACE
General Information
The chapter “Command Interface” is a documentation of
the AT−Command set for devices which do not have an
API−interface. To see whether the device is capable of
receiving AT−Commands, please refer to chapter “Part
Numbers”. If the device has been shipped with the
API−Interface, please refer to the AX−Sigfox SOFTWARE
MANUAL for an introduction on how to setup a project and
how to use the API−Interface.
Serial Parameters: 9600, 8, N, 1
The AX−Sigfox uses the UART (pins UARTTX,
UARTRX) to communicate with a host and uses a bitrate of
9600 baud, no parity, 8 data bits and one stop bit.
Power Modes
Standby
After Power−Up and after finishing a SIGFOX
transmission, AX−Sigfox enters Standby mode. In Standby
mode, AX−Sigfox listens on the UART for commands from
the host. Also, OOB frames are transmitted whenever the
OOB timer fires. To conserve power, the AX−Sigfox can be
put into Sleep or turned off (Deep Sleep) completely.
Sleep
The command AT$P=1 is used to put the AX−Sigfox into
Sleep mode. In this mode, only the wakeup timer for
out−of−band messages is still running. To wake the
AX−Sigfox up from Sleep mode toggle the serial UARTRX
pin, e.g. by sending a break (break is an RS232 framing
violation, i.e. at least 10 bit durations low). When an Out of
Band (OOB) message is due, AX−Sigfox automatically
wakes up to transmit the message, and then returns to Sleep
mode.
Deep Sleep
In Deep Sleep mode, the AX−Sigfox is completely turned
off and only draws negligible leakage current. Deep Sleep
mode can be activated with AT$P=2. To wake−up from
Deep Sleep mode, GPIO9 is pulled to GND.
When using Deep Sleep mode, keep two things in mind:
Everything is turned off, timers are not running at all and all
settings will be lost (use AT$WR to save settings to flash
before entering Deep Sleep mode). Out−of−band messages
will therefore not be sent. The pins states are frozen in Deep
Sleep mode. The user must ensure that this will not result in
condition which would draw a lot of current.
AT Commands
Numerical Syntax
hexdigit ::= [0−9A−Fa−f]
hexnum ::= “0x” hexdigit+
decnum ::= “0” | [1−9] [0−9]*
octnum ::= “0” [0−7]+
binnum ::= “0b” [01]+
bit ::= [01]
optnum ::= “−1”
frame ::= (hexdigit hexdigit)+
uint ::= hexnum | decnum | octnum | binnum
uint_opt ::= uint | optnum
Command Syntax
A command starts with ‘AT’ (everything is case
sensitive!), continues with the actual command followed by
parameters (if any) and ends with any kind of whitespace
(space, tab, newline etc.)
If incorrect syntax is detected (“parsing error”) all input
is ignored up until the next whitespace character.
Also note that any number can be entered in any format
(Hexadecimal, Decimal, Octal and binary) by adding the
corresponding prefix (‘0x’, ‘0’, ‘0b’). The only exception is
the ‘Send Frame’ command (AT$SF) which expects a list of
hexadecimal digits without any prefix.
Return Codes
A successful command execution is indicated by sending
‘OK’. If a command returns a value (e.g. by querying a
register) only the value is returned.
Examples
Bold text is sent to AX−Sigfox.
AT$I=0
AXSEM AT Command Interface
Here, we execute command ‘I’ to query some general
information.
AT$SF=aabb1234
OK
This sends a Sigfox frame containing { 0x00 : 0x11 : 0x22
: 0x33 : 0x44 }, then waits for a downlink response telegram,
which in this example contains { 0xAA : 0xBB : 0xCC :
0xDD }.
AT$CB=0011223344,1
OK
RX=AA BB CC DD
www.onsemi.com
11
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