EVB71121 查看數據表（PDF） - Melexis Microelectronic Systems

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EVB71121

300 to 930MHz Receiver Evaluation Board Description

Melexis Microelectronic Systems  

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

! 2nd 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

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