Melexis MLX73290-A Manual

Features and Benefits

3DLF interface for low power wake-up

Backup mode for battery less operations

RSSI information for LF and RF interfaces

LF/ RF intelligent self-polling modes for low power
operations

Multi-band frequency coverage from 300MHz up to
960MHz

Modulation schemes supported:
(G)FSK, (G)MSK, OOK

Transmitter power of -20 to 13dBm, 64 steps

Receiver sensitivity of -120dBm (FSK, 433MHz,
15kHz CHBW)
Application Examples

Low-power tracking systems

Secure access systems

Passive Keyless Entry / Start (PKES)
Ordering Code
Product Temperature
MLX73290 R
Legend: R for -40°C to 105°C
Introduction
The MLX73290-A combines a highly integrated Radio Frequency transceiver for long range, high speed
communication and a 3 dimensional low frequency interface (3DLF) for low power wake-up. This unique
combination makes the MLX73290-A suitable for applications requiring a very low power wake-up function
together with long range, high speed RF feedback.
The transceiver part allows for multi-channel operation including frequency hopping in the European bands
(433MHz and 868MHz) as well as in North America or Asia bands (315MHz or 915MHz). The output power,
frequency channel, modulation type and frequency deviation are programmable. Thanks to the high
frequency resolution and phase noise performance of its fractional-N PLL, the MLX73290-A is fit for narrow-
band operation. There are two selectable modulation schemes: binary on-off keying (OOK) and binary
frequency shift keying (FSK) as well as their Gaussian filtered versions. The low-IF receiver part comprises
fully digital demodulation and self-polling features together with channel scanning and built-in packet
recognition.
The 3DLF interface features an automatic and programmable wake-up algorithm together with an integrated
data decoder to receive the payload. Monitoring independently the RSSI information from the 3-axis LF front-
ends allows precise monitoring of the received LF field. Thanks to its internal rectifier, power management
and load modulator,
390107329001
Rev 003
300 to 960MHz Multi-channel Transceiver
Package
LQ
LQ for 32L QFN5x5
the MLX73290-A is
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With 3DLF Low Power Interface

Supply voltage range of 2.1 to 3.6V

PLL synthesizer with 60Hz resolution

Channel filter bandwidth of 9 to 600kHz

Data rate of 0.3 to 250kbps (GFSK)

Frequency deviation up to 125kHz

32MHz crystal frequency

SPI interface with embedded FIFO, 256bytes for
RF and 8bytes for LF interfaces 4 programmable
GPIO ports

32L QFN5x5 package

Conform to EN 300 220, DASH7, FCC part 15,
Japan ARIB STD-T67, Korean and other standards
Option
ABA-000
capable of battery-less
MLX73290-A
Packaging Form
RE or TU
RE for reel (5000 pcs.)
LF RFID tag operation.
Data Sheet
April/2016