MCS3142 datasheet(27/57 Pages) MICROCHIP

部件名	MCS3142

功能描述	MCS3142 Dual KEELOQ짰 Encoder Wireless Remote Control Development Kit

PDF	57 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

标志

27 / 57 page

MCS3142 Dual KEELOQ® Encoder Wireless Remote Control Development Kit User’s Guide

DS40001746A-page 26

 2014 Microchip Technology Inc.

The daughter board features the Semtech SX1239 Low-Power Integrated UHF

Receiver (http://www.semtech.com/wireless-rf/rf-receivers/sx1239/). The PICtail

daughter board can plug into the 28-pin PICtail connector, featured on many Microchip

Technology development tools.

The antenna connection has a pin socket for plugging a wire antenna. This

demonstrates a simple and low-cost antenna option.

The antenna pin socket can be removed by heating it with a soldering iron and cleaning

the connection. An SMA or reverse polarity SMA (RP-SMA) connector can be soldered

in place on the PCB. A whip or sleeve dipole antenna can then be used.

If an SMA+ different antenna is used, the matching circuit will be less ideal. Pre-made

antennas have a fixed, lower impedance. The wire used has a higher impedance.

MCS3142 数据表(PDF) 27 Page - Microchip Technology