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AX-SIGFOX Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer AX-SIGFOX
Beschreibung Sigfox Compliant Transceiver IC
Hersteller ON Semiconductor
Logo ON Semiconductor Logo 




Gesamt 19 Seiten
AX-SIGFOX Datasheet, Funktion
AX-SIGFOX
Ultra-Low Power,
AT Command Controlled,
Sigfox) Compliant
Transceiver IC for Up-Link
and Down-Link
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OVERVIEW
Circuit Description
AXSigfox is an ultralow power single chip solution for
a node on the Sigfox network with both upand downlink
functionality. The AXSigfox 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 uplink and downlink functionality controlled
by AT commands
The AXSigfox 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 AXSigfox development kit with fully
functional AXSigfox module including Sigfox
subscription
Sigfox Ready® certified reference design for the
AXSigfox IC
MiniStamp by ON Semiconductor Sigfox modules
with SMA connector or chip antenna
AXSigfoxAPI 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
Ultralow 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 RXmode at 869.525 MHz :
10 mA
Continuous radio TXmode at 868.130 MHz
19 mA @ 0 dBm
49 mA @ 14 dBm
High Performance Narrowband Sigfox RF Transceiver
Receiver
Carrier frequency 869.525 MHz
Datarate 600 bps FSK
Sensitivity
126 dBm @ 600 bps, 869.525 MHz, GFSK
0 dBm maximum input power
Transmitter
Carrier frequency 868.13 MHz
Datarate 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 uplink and downlink.
© Semiconductor Components Industries, LLC, 2016
March, 2016 Rev. 3
1
Publication Order Number:
AXSIGFOX/D






AX-SIGFOX Datasheet, Funktion
AXSIGFOX
DC Characteristics
Table 4. SUPPLIES
Conditions for all current and charge values unless otherwise specified are for the hardware configuration described in the AXSigfox
Application Note: Sigfox Compliant Reference Design.
Symbol
Description
Condition
Min Typ Max Units
TAMB
VDDIO
Operational ambient temperature
I/O and voltage regulator supply
voltage
40 27
1.8 3.0
85
3.6
°C
V
VDDIO_R1
I/O voltage ramp for reset activation;
Note 1
Ramp starts at VDD_IO 0.1 V
0.1
V/ms
VDDIO_R2
I/O voltage ramp for reset activation;
Note 1
Ramp starts at 0.1 V < VDD_IO < 0.7 V
3.3
V/ms
IDS
ISLP
ISTDBY
Deep sleep mode current
Sleep mode current
Standby mode current
Note 3
AT$P=2
AT$P=1
100 nA
1.3 mA
0.5 mA
IRX_CONT
QSFX_OOB_0
Current consumption continuous RX
Charge to send a Sigfox out of band
message, 0 dBm
AT$SR=1,1,1
AT$S0
10 mA
0.12 C
QSFX_BIT_0
QSFX_BITDL_0
Charge to send a bit, 0 dBm
Charge to send a bit with downlink
receive, 0 dBm
AT$SB=0
AT$SB=0,1
0.08 C
0.27 C
QSFX_LFR_0
Charge to send the longest possible
Sigfox frame (12 byte) , 0dBm
AT$SF=00112233445566778899aabb
0.14
C
QSFX_LFRDL_0
Charge to send the longest possible
Sigfox frame (12 byte) with downlink
receive, 0 dBm
AT$SF=00112233445566778899aabb,1
0.27
C
QSFX_OOB_14
Charge to send a Sigfox out of band
message, 14 dBm
AT$S0
0.28 C
QSFX_BIT_14
QSFX_BITDL_14
Charge to send a bit, 14 dBm
Charge to send a bit with downlink
receive, 14 dBm
AT$SB=0
AT$SB=0,1
0.20 C
0.35 C
QSFX_LFR_14
Charge to send the longest possible
Sigfox frame (12 byte) , 14 dBm
AT$SF=00112233445566778899aabb
0.39
C
QSFX_LFRDL_14
Charge to send the longest possible
Sigfox frame (12 byte) with downlink
receive, 14 dBm
AT$SF=00112233445566778899aabb,1
0.46
C
ITXMOD0AVG
Modulated Transmitter Current,
Note 2
Pout=0 dBm; average
19.0 mA
ITXMOD14AVG
Modulated Transmitter Current,
Note 2
Pout=14 dBm; average
49.0 mA
1. If VDD_IO ramps cannot be guaranteed, an external reset circuit is recommended, see the AX8052 Application Note: Power On Reset
2. The output power of the AXSigfox can be programmed in 1 dB steps from 0 dBm – 14 dBm. Current consumption values are given for a
matching network that is optimized for 14 dBm output. 0 dBm transmission with typically 10 mA can be achieved with other networks that
are optimized for 0 dBm operation.
3. Internal 20 MHz iscillator, voltage conditioning and supervisory circuit running.
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AX-SIGFOX pdf, datenblatt
AXSIGFOX
This sends a Sigfox frame containing { 0xAA : 0xBB : 0x12
: 0x34 } without waiting for a response telegram.
AT$CB=0xAA,1
OK
The ‘CB’ command sends out a continuous pattern of bits,
in this case 0xAA = 0b10101010.
AT$P=1
OK
This transitions the device into sleep mode. Outofband
transmissions will still be triggered. The UART is powered
down. The device can be woken up by a low level on the
UART signal, i.e. by sending break.
Table 10. COMMANDS
Command
AT
AT$SB=bit[,bit]
AT$SF=frame[,bit]
AT$SO
ATSuint?
ATSuint=uint
AT$IF=uint
AT$IF?
AT$DR=uint
AT$DR?
AT$CW=uint,bit[,uint_opt]
AT$CB=uint_opt,bit
AT$T?
AT$V?
Name
Dummy Command
Send Bit
Send Frame
Manually send out of band
message
Get Register
Set Register
Set TX Frequency
Get TX Frequency
Set RX Frequency
Get RX Frequency
Continuous Wave
Test Mode: TX constant byte
Get Temperature
Get Voltages
Description
Just returns ‘OK’ and does nothing else. Can be used to check com-
munication.
Send a bit status (0 or 1). Optional bit flag indicates if AXSigfox
should receive a downlink frame.
Send payload data, 1 to 12 bytes. Optional bit flag indicates if
AXSigfox should receive a downlink frame.
Send the outofband message.
Query a specific configuration register’s value. See chapter
“Registers” for a list of registers.
Change a configuration register.
Set the output carrier macro channel for Sigfox frames.
Get the currently chosen TX frequency.
Set the reception carrier macro channel for Sigfox frames.
Get the currently chosen RX frequency.
To run emission tests for Sigfox certification it is necessary to send a
continuous wave, i.e. just the base frequency without any modula-
tion. Parameters:
Name
Range
Description
Frequency
800000000Continuous wave frequency in Hz.
999999999, 0 Use 868130000 for Sigfox or 0 to
keep previous frequency.
Mode
0, 1
Enable or disable carrier wave.
Power
014
dBm of signal | Default: 14
For emission testing it is useful to send a specific bit pattern. The
first parameter specifies the byte to send. Use ‘1’ for a
(pseudo)random pattern. Parameters:
Name
Range
Decsription
Pattern
0255, 1
Byte to send. Use ‘1’ for a
(pseudo)random pattern.
Mode
0, 1
Enable or disable pattern test mode.
Measure internal temperature and return it in 1/10th of a degree
Celsius.
Return current voltage and voltage measured during the last
transmission in mV.
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