EVB71121 Datasheet, PDF (1/18 Pages) Melexis Microelectronic Systems – 300 to 930MHz Receiver Evaluation Board Description

EVB71121
300 to 930MHz Receiver
Evaluation Board Description
Features
! Dual RF input for antenna space and frequency diversity, LNA cascading or differential feeding
! Fully integrated PLL-based synthesizer
! 2^nd mixer with image rejection
! Reception of ASK or FSK modulated signals
! Wide operating voltage and temperature ranges
! Very low standby current consumption
! Low operating current consumption
! Internal IF filter
! Internal FSK demodulator
! Average or peak detection data slicer mode
! RSSI output with high dynamic range for RF level indication
! Output noise cancellation filter
! MCU clock output
! High over-all frequency accuracy
Ordering Information
Part No. (see paragraph 4)
PRELIMINARY ^{EVB71121-315-C}
EVB71121-433-C
Note 1: Peak detection mode is default population.
Application Examples
! General digital and analog RF receivers
at 300 to 930MHz
! Tire pressure monitoring systems (TPMS)
! Remote keyless entry (RKE)
EVB71121-868-C
EVB71121-915-C
! Low power telemetry systems
! Alarm and security systems
! Active RFID tags
! Remote controls
! Garage door openers
! Home and building automation
General Description
The MLX71121 is a multi-band, single-channel RF receiver based on a double-conversion super-heterodyne
architecture. It can receive FSK and ASK modulated signals. The IC is designed for general purpose
applications for example in the European bands at 433MHz and 868MHz or for similar applications in North
America or Asia, e.g. at 315MHz or 915MHz.
The receiver’s extended temperature and supply voltage ranges make the device a perfect fit for automotive
or similar applications where harsh environmental conditions are expected.
39012 71121 01
Rev. 003
Page 1 of 18
EVB Description
Jan/08