AXSEM - AX5042: 400-470 MHz

The AX5042 is a single-chip narrow-band RF transceiver for the bands in the frequency ranges of 400-470 MHz ad 800-940 MHz. The AX5042 offers with -123 dBm at 433 MHz and 1 kbps FSK one of the highest sensitivities in the market. Together with the 14 dBm power amplifier with 60 mA current consumption the link budget is 137 dBm.

Lowest cost narrow-band solution. 

The AX5042 is a single-chip narrow-band RF transceiver for the bands in the frequency ranges of 400-470 MHz ad 800-940 MHz. The AX5042 offers with -123 dBm at 433 MHz and 1 kbps FSK one of the highest sensitivities in the market. Together with the 14 dBm power amplifier with 60 mA current consumption the link budget is 137 dBm.

The AX5042 transceiver consists of an integrated RF front-end with modulator and demodulator and flexible communication controller. Base band data processing is implemented in the integrated communication controller for user-friendly communication and configuration via SPI interface. The integrated HDLC protocol guarantees exceptionaly compact code and small CPU overhead. The AFC enables the user to use low end crystals.

The AX5042's flexibility make it ideal for SRD applications such as sensor networks, access control systems or home automation applications using the Konnex, ARIB or other standards.

For narrow-band operation we recommend the usage of a TCXO. North american as well as european standards require freqency tolerances of 0.5 ppm  to 1.5 ppm for many narrow-band applications. 

Features

• Single chip ASK/FSK/PSK/MSK/GFSK/GMSK/OQPSK UHF transceiver
• Configurable for use in 400 - 470 MHz and 800 - 940 MHz SRD bands
• Ultra-narrow-band receiver with programmable channel filter in the range 4.8 - 600 kHz
• -123 dBm sensitivity with 1.2 kBit/s at BER 10-3 without FEC at 433 MHz, 4.8 kHz filter BW
• -121 dBm sensitivity with 1.2 kBit/s at BER 10-3 without FEC at 868 MHz, 4.8 kHz filter BW
• Up to +14 dBm programmable transmitter power amplifier at 433 MHz
• Up to +12 dBm programmable transmitter power amplifier at 868 MHz
• Data rates 1 - 250 kbps FSK
• Data rates 1 - 600 kbps ASK
• Data rates 10 - 600 kbps ASK
• Spectral shaping for ASK, FSK and PSK
• RS-232 (UART) compatible
• 1 Hz frequency step
• Few external components, low cost crystals
• Automatic frequency control
• SPI micro controller interface
• Forward error correction integrated (FEC)
• HDLC protocol
• Low power: 17 - 23 mA at 2.5 V supply during receive and 13 - 37 mA during transmit
• Operating temperature range –40 to 85 C
• Small package size: 5x5mm, QFN28 package 

Applications

• Asset tracking
• Ticketing
• Remote Keyless Entry (RKE)
• Automatic Meter Reading (AMR)
• Home and building automation
• Wireless Sensor Network (WSN)
• Process automation
• Consumer electronics
• Audio links
• Serial cable replacement
• Wireless network 

Development Tools & Kits

• ParamCalc GUI C code snippet generator here...
• Development kit here...
• AX8052 based development system here...