EVB71122(2015) View Datasheet(PDF) - Melexis Microelectronic Systems
Part Name
Description
Manufacturer
EVB71122
(Rev.:2015)
(Rev.:2015)
Melexis Microelectronic Systems
EVB71122 Datasheet PDF : 31 Pages
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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 2nd 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
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 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
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