AX5031 - Universal Low Power RF Transmitter IC

The AX5031 is a universal single chip, low power RF-transmitter for the 433/868/915 MHz bands that offers output power of up to 15 dBm at data rates of up to 350 kbps for FSK modulated data and up to 2000 kbps for ASK or PSK modulated data.

Universal low power RF transmitter
The AX5031 is a universal single chip, low power RF-transmitter for the 433/868/915 MHz bands that offers output power of up to 15 dBm at data rates of up to 350 kbps for FSK modulated data and up to 2000 kbps for ASK or PSK modulated data.

Specifically designed as a flexible, low power and low cost solution, the AX5031 supports multi channel operation for channels bandwidths above 40 kHz. An integrated voltage regulation system allows the direct use of batteries and short start-up times enable time- and energy-efficient protocols.

Advanced transmitter and radio controller

The AX5031 supports FSK, GFSK, MSK, 4-FSK, PSK and ASK modulations and all modulations are shaped. The AX5031 features an easy to use protocol implemented in hardware which guarantees smallest possible firmware code size and the lowest CPU usage of a microcontroller. CRCs are calculated automatically and digital spread spectrum is possible on all modulations. Minimum external components are required comprising of a crystal, an antenna and a few passive components. All parameters of the AX5031 including modulation, frequency, deviation and output power can be programmed via an SPI interface.

Key Features:

  • FSK, GFSK, MSK, 4-FSK, PSK and ASK
  • 15 dBm output power
  • Flat PA output power characteristics over battery voltage
  • PSK and ASK data rates up to 2000 kbps, FSK data rates up to 350 kpbs
  • Digital spread spectrum

Features

  • Supported modulations: FSK, MSK, GFSK, 4-FSK, PSK and ASK
  • All modulations are shaped
  • Digital spread spectrum is possible on all modulations
  • Communication with the device via SPI interface

Sophisticated Radio Controller

  • Supports HDLC and Raw frames in hardware
  • A wide variety of other protocols can be implemented in software, e.g. Wireless M-Bus
  • 32 bytes FIFO
  • Programmable Cyclic Redundancy Check (CRC-CCITT, CRC-16, CRC-32)

Advanced RF Frequency Generation

  • RF Carrier and FSK deviation programmable in 1 Hz steps
  • Ultra fast synthesizer settling for low power and fast channel hopping

Integrated Power Management

  • Wide supply range for direct battery connection
  • Brown-out detection
  • Small number of decoupling capacitors

Auxiliary Functions

  • Freely programmable general purpose IOs

Small Footprint: 20 pin QFN 4mm x 4mm Package

Approvals

  • FCC Part 15.247
  • FCC Part 15.249
  • EN 300 220 wide band
  • Wireless M-Bus S/T-mode
  • Konnex RF
  • ARIB STD T-67

Axsem Product Selector

Part No. Description Pack Size
AX5031-1-TA05 RF Tx IC, 400 - 470MHz & 800 - 940MHz universal, low-power, 20-pin QFN, 4mm x 4mm Reel of 500
AX5031-1-TW30 RF Tx IC, 400 - 470MHz & 800 - 940MHz universal, low-power, 20-pin QFN, 4mm x 4mm Reel of 3000
Development Kits
DVK-BASE-2-GEVK

Development kit for evaluating and developing applications using ON Semiconductor's family of high performance RF devices and microcontrollers.

Contents:

  • 2 Main boards
  • Debug adapter
  • Debug cable
  • USB cable
  • Batteries
  • Documentation

* One of the Add-On Module Kits below must be ordered at the same time. The Base Kit is not supplied with any RF transceivers.

Each
Add-On Module Kits for DVK-BASE-2-GEVK
MOD5031-868-2-GEVB

Pack containing 2 x AX5031 modules for the DVK-BASE-2-GEVK

Each

Development kit comes with productivity enhancing complete development tool suite

AX5031 is supported by the AXSEM development kit AXSEM-DVK-2c-BaseKit. This is a complete and flexible ready-to-go solution for easy testing, evaluation and development with AXSEM RF ICs. It is suited for real performance tests using professional lab equipment, as well as for application code development.

The AXSEM-DVK-2c-BaseKit is based on the AX8052F100 MCU and AXSEM offers both the AX-ParamCalc GUI as well as the advanced graphic integrated development environment AX8052-IDE together with the open source and freely usable SDCC C-compiler to go with it.

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Last updated: 19 January 2016