AX5042 datasheet(5/42 Pages) ONSEMI

5 / 42 page

Overview

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AX5042

1. Overview

1.1.

Features



Advanced multi-channel single

chip UHF transceiver



Configurable for usage in 400-470

(510) MHz MHz and 800-940 (1020)

MHz ISM bands



Wide variety of shaped

modulations supported in RX and

TX (ASK, PSK, OQPSK, MSK, FSK,

GFSK)



Data rates from 1 to 250 kbps (FSK,

MSK, GFSK, GMSK, OQPSK) and 2 to

600kbps (ASK, PSK) with fully

scaling narrow-band channel

filtering



4.8 kHz to 600 kHz programmable

channel filter



Ultra fast settling RF frequency

synthesizer for low-power

consumption



802.15.4 compatible



RS-232 (UART) compatible



RF carrier frequency and FSK

deviation programmable in 1 Hz

steps



Fully integrated frequency

synthesizer with VCO auto-ranging

and band-width boost modes for

fast locking



Few external components



On-chip communication controller

and flexible digital modem



Channel hopping up to 2000 hops/s



Sensitivity down to –123 dBm @ 1.2

kbps FSK



Sensitivity down to –115 dBm @ 10

kbps FSK



Up to +10 dBm (+13 dBm 433 MHz)

programmable transmitter power

amplifier for long range operation



Crystal oscillator with

programmable transconductance

for low cost crystals (a TCXO is

recommended for channel filter BW

< 40 kHz)



Automatic frequency control (AFC)



SPI micro-controller interface



Digital RSSI with 0.625 dB resolution



Fully integrated current/voltage

references



Wire and frame mode



QFN28 package



Low power 17 - 23 mA at 2.5 V

supply during receive and

13 - 37 mA during transmit



24 bit RX/TX FIFO



2.3 V to 2.8 V supply range



Programmable Cyclic Redundancy

Check (CRC-CCITT, CRC-16, CRC-

32)



Optional spectral shaping using a

self synchronized shift register



RoHS compliant

1.2.

Applications

400-470 MHz and 800-940 MHz data

transmission and reception in the Short

Range Device (SRD) band. The frequency

range up to 510 MHz and 1020 MHz is

accessible with higher VDD limit.



Automatic meter reading



FCC Part 90.210 6.25 kHz, 12.5 kHz

and 25 kHz applications



EN 300 220 V 2.1.1



European paging applications



Long range sensor read-out



Long range remote controls

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