Multi-channel programmable FSK/FM/ASK receiver - 300 to 930 MHz
MLX71122 Melexis
Not recommended for new designs. The MLX71122 is a multi-channel receiver 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
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Programmable PLL synthesizer
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8-channel pre-configured or fully programmable SPI mode
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Double super-heterodyne receiver architecture with 2nd mixer as image rejection mixer
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Reception of FSK, FM and ASK modulated signals
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Low shutdown and operating currents
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AFC - automatic frequency correction
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AGC - automatic gain control
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On-chip IF filter
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Fully integrated FSK/FM demodulator
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RSSI for level indication and ASK detection
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2nd order low-pass data filter
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Positive and negative peak detectors
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Data slicer (with averaging or peak-detector adaptive threshold)
- 32 pin Quad Flat No-Lead 32L QFN 5x5 Quad
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
