© Semiconductor Components Industries, LLC, 2016
April, 2016 − Rev. 3
1 Publication Order Number:
AX5031/D
AX5031
Advanced Multi-channel
Single Chip UHF Transmitter
OVERVIEW
The AX5031 is a true single chip low−power CMOS transmitter
primarily for use in SRD bands. The on−chip transmitter consists of a
fully integrated RF front−end with modulator, and demodulator. Base
band data processing is implemented in an advanced and flexible
communication controller that enables user friendly communication
via the SPI interface.
AX5031 can be operated from a 2.2 V to 3.6 V power supply over a
temperature range of −40°C to 85°C, it consumes 11 − 45 mA for
transmitting, depending on the output power.
Features
• Advanced Multi−channel Single Chip UHF Transmitter
• Configurable for Usage in 400−470 MHz and 800−940 MHz
ISM Bands
• −5 dBm to +15 dBm Programmable Output
• 13 mA @ 0 dBm, 868 MHz
• 22 mA @ 10 dBm, 868 MHz
• 44 mA @ 15 dBm, 868 MHz
• Wide Variety of Shaped Modulations Supported (ASK, PSK,
OQPSK, MSK, FSK, GFSK, 4−FSK)
• Data Rates from 1 to 350 kbps (FSK, MSK, GFSK,
4−FSK), 1 to 2000 kbps (ASK), 10 to 2000 kbps (PSK)
• Ultra Fast Settling RF Frequency Synthesizer for
Low−power Consumption
• 802.15.4 Compatible
• RF Carrier Frequency and FSK Deviation
Programmable in 1 Hz Steps
• Fully Integrated RF Frequency Synthesizer with VCO
Auto−ranging and Bandwidth Boost Modes for Fast
Locking
• Few External Components
• On Chip Communication Controller and Flexible
Digital Modulator
• Channel Hopping 2000 hops/s
• Crystal Oscillator with Programmable
Transconductance and Programmable Internal Tuning
Capacitors for Low Cost Crystals
• SPI Micro−controller Interface
• QFN20 Package
• Supply Voltage Range 2.2 V − 3.6 V
• Internal Power−on−reset
• 32 Byte Data FIFO
• Programmable Cyclic Redundancy Check
(CRC−CCITT, CRC−16, CRC−32)
• Optional Spectral Shaping Using a Self Synchronizing
Shift Register
• Brown−out Detection
• Differential Antenna Pins
• Dual Frequency Registers
• Internally Generated Coding for Forward Viterbi Error
Correction
• Software Compatible to AX5051
Applications
• Telemetry
• Sensor Readout, Thermostats
• AMR
• Toys
• Wireless Audio
• Wireless Networks
• Wireless M−Bus
• Access Control
• Remote Keyless Entry
• Remote Controls
• Active RFID
• Compatible with FCC Part 15.247, FCC Part 15.249,
EN 300 220 Wideband, Wireless M−Bus S/T−Mode,
Konnex RF, ARIB T−67
www.onsemi.com
ORDERING INFORMATION
Device Type Qty
AX5031−1−TA05 Tape & Reel
500
AX5031−1−TW30 Tape & Reel 3,000
1
QFN20 4x4, 0.5P
CASE 485BH
