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ON Semiconductor AX5243-1-TA05, RF Transceiver IC 27MHz to 1050MHz 20-Pin QFN

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Temporarily out of stock - back order for despatch when stock is available
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RS Stock No.:
Mfr. Part No.:
ON Semiconductor
unitsPer unitPer Reel*
500 +$2.126$1,063.00
*price indicative

AX5x43 27-1050MHz NB RF Transceivers

The AX5043 and AX5243 are narrow-band multi-channel single-chip RF transceivers for 27 to 1050MHz Licensed and Unlicensed radio systems.

RF Operating Frequencies: 27 to 1050MHz
RF Output Power: up to +16dBm
Receiver Sensitivity: -137dBm @ 100bps, FSK 868MHz with FEC
Modulation: FSK, MSK, 4−FSK, GFSK, GMSK, ASK or PSK
OTA Date Rate: 125kbps
Channel hopping @ 2000 hops/s
Optional Forward Error Correction (FEC)
Fully automatic packet reception and transmission
Separate matching units for Preamble Byte, Sync-word and Address
Supports HDLC, Raw, Wireless M−Bus frames and arbitrary defined frames
Automatic channel noise-level tracking
Additional single-ended Tx output for use with an external PA (AX5043 only)
256 byte Tx & Rx data FIFO
Brown-out detection
Host communication: serial SPI
Simple 'cable-replacement' mode available via separate serial data I/O and clock pins (AX5043 only)
10-bit 1MS/s ADC
Power supply: +1.8V to +3.6Vdc
Operating temperature range: -40 to +85°C
Compatible with: Wireless M-Bus, POCSAG, FLEX, KNX, Sigfox, Z−Wave and enocean protocols
Applications: Telemetry, AMR, Wireless networks, Wireless M-Bus, Access control, Building automation, Communication for the Internet of Things (IoT)

RS Product Codes
915-8732 AX5043-1-TA05 QFN28
915-8739 AX5243-1-TA05 QFN20


FCC, ETSI, Wireless-M-Bus

Number of Operating Bands1
Maximum Operating Band 1 Frequency1050MHz
Minimum Operating Band 1 Frequency27MHz
Data Rate125kbps
Modulation TechniqueAFSK, ASK, FM, FSK, GFSK, GMSK, MSK, PSK, QFSK
Maximum Operating Supply Voltage3.6 V
Minimum Operating Supply Voltage1.8 V
Maximum Operating Temperature+85 °C
Minimum Operating Temperature-40 °C
Mounting TypeSurface Mount
Package TypeQFN
Dimensions4.1 x 4.1 x 0.9mm
TechnologyLow IF/ISM Transceiver
Pin Count20