EVB71122_15 Datasheet, PDF (1/31 Pages) Melexis Microelectronic Systems – 300 to 930MHz Receiver Evaluation Board Description

EVB71122
300 to 930MHz Receiver
Evaluation Board Description
Features
 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
 AGC – automatic gain control
 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)
 32-pin Quad Flat No-Lead Package (QFN)
 EVB programming software is available on Melexis web site
Ordering Information
EVB71122-315-C
EVB71122-433-C
EVB71122-868-C
EVB71122-915-C
*SPI mode is default population
**EVB71122-XXX-C with XXX = Reception frequency (315 or 433.92 or 868.3 or 915MHz).
***The evaluation board is supplied with an SMA connector.
Application Examples
 General digital and analog RF receivers
at 300 to 930MHz
 Tire pressure monitoring systems (TPMS)
 Remote keyless entry (RKE)
 Low power telemetry systems
 Alarm and security systems
 Active RFID tags
 Remote controls
 Garage door openers
 Home and building automation
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. 005
Page 1 of 31
EVB Description
Nov/15