Multi-channel programmable FSK/FM/ASK receiver - 300 to 930 MHz

MLX71122

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The MLX71122 is a multi-channel receiver integrated circuit (IC) based on a double-conversion superheterodyne architecture.

It is designed to receive FSK and ASK modulated RF signals either in 8 predefined frequency channels or frequency programmable via a 3-wire serial programming interface (SPI).

The IC is designed for a variety of applications, for example in the European bands at 433 and 868 MHz or for the use in North America or Asia, for example at 315, 447 or 915 MHz.

Top features

Programmable PLL synthesizer
8-channel pre-configured or fully programmable SPI mode
Double super-heterodyne receiver architecture with 2nd mixer as image rejection mixer
Reception of FSK, FM and ASK modulated signals
Low shutdown and operating currents
AFC - automatic frequency correction
AGC - automatic gain control
On-chip IF filter
Fully integrated FSK/FM demodulator
RSSI for level indication and ASK detection
2nd order low-pass data filter
Positive and negative peak detectors
Data slicer (with averaging or peak-detector adaptive threshold)
32 pin Quad Flat No-Lead 32L QFN 5x5 Quad

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Features and benefits

Programmable PLL synthesizer
8-channel pre-configured or fully programmable SPI mode
Double super-heterodyne receiver architecture with 2nd mixer as image rejection mixer
Reception of FSK, FM and ASK modulated signals
Low shutdown and operating currents
AFC - automatic frequency correction
AGC - automatic gain control
On-chip IF filter
Fully integrated FSK/FM demodulator
RSSI for level indication and ASK detection
2nd order low-pass data filter
Positive and negative peak detectors
Data slicer (with averaging or peak-detector adaptive threshold)
32 pin Quad Flat No-Lead 32L QFN 5x5 Quad