EVB71122
300 to 930MHz Receiver
Evaluation Board Description
Features
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Programmable PLL synthesizer
8-channel preconfigured or fully programmable SPI mode
Double super-heterodyne receiver architecture with 2
nd
mixer as image rejection mixer
Reception of FSK, FM and ASK modulated signals
Low shut-down and operating currents
Build-in acceptance of input frequency variations
On-chip IF filter
Fully integrated FSK/FM demodulator
RSSI for level indication and ASK detection
2
nd
order low-pass data filter
Positive and negative peak detectors
Data slicer (with averaging or peak-detector adaptive threshold)
EVB programming software is available on Melexis web site
Ordering Information
Part No. (see paragraph 6)
EVB71122C-315-C
EVB71122C-433-C
Note:
SPI mode is default population, ABC mode according to paragraph 4.2
Application Examples
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General digital and analog RF receivers
at 300 to 930MHz
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Tire pressure monitoring systems (TPMS)
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Remote keyless entry (RKE)
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Low power telemetry systems
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Alarm and security systems
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Active RFID tags
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Remote controls
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Garage door openers
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Home and building automation
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A
IN
IM
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EVB71122C-868-C
EVB71122C-915-C
Evaluation Board Example
General Description
The MLX71122 is a multi-channel RF receiver IC based on a double-conversion super-heterodyne architec-
ture. 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 433MHz and 868MHz
or for the use in North America or Asia, e.g. at 315MHz, 447MHz or 915MHz.
39012 71122 01
Rev. 001
Page 1 of 32
EVB Description
Sept/06