MLX73290-M – 300 to 960MHz Multi-Channel Transceiver with Flex RF Front-End

The MLX73290-M is a 300 to 930MHz multi-channel transceiver chip. The output power, frequency channels, modulation type frequency deviation and many other parameters are programmable via SPI. Its output power level ranges from -20dBm to 13dBm while its receiver sensitivity can attain -120dBm in a 15kHz bandwidth. With a maximum data rate of 250kbps, the transceiver is also capable of handling heightened data throughputs.Thanks to the high degree of programmability, engineers employing this IC are presented with plenty of scope when it comes to configuring and implementing an RF front-end.

On-off keying (OOK), binary frequency shift keying (FSK), minimum shift keying (MSK), Gaussian minimum shift keying (GMSK) and Gaussian frequency shift keying (GFSK) modulation schemes are supported.

Two RF power detectors provide augmentation of radiated power performance during transmission. An energy harvesting interface allows battery-less power supply by using a solar cell in combination with a super capacitor. This accentuates its value in remote locations where power lines are impractical. Evaluation boards and software tools are also available.

This IC is highly suited to sub-GHz wireless applications like home/building automation, tire pressure monitoring (TPMS), automatic meter reading (AMR), alarm systems, passive keyless entry (PKE), medical diagnostics and telemetry.

FEATURES

Flex TX/RX RF front-end for antenna and frequency diversity
Energy harvesting interface
Transmitter with power detectors
Receiver with digital RSSI
Receiver self polling with MCU wake-up
Multi-band frequency coverage from 300MHz up to 960MHz
Modulation schemes supported: (G)FSK, (G)MSK, (G)OOK
Transmitter power of -20 to 13dBm, 64 steps
Receiver sensitivity of -120dBm (FSK, 433MHz, 9kHz CHBW)
Supply voltage range of 2.1 to 3.6V
5mm x 5mm 32-lead QFN package
operational temperature range of -40°C to 105°C

APPLICATIONS

Automatic meter reading (AMR)
Remote controls
Home and building automation
Alarm and security systems
Garage door openers
Medical applications
Telemetry
Industrial appliances
Automotive keyless entry
Tire pressure monitoring

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