XE1209 查看數據表（PDF） - Semtech Corporation

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XE1209

30 – 70 kH Ultra Low Power CMOS Transceiver

Semtech Corporation 

XE1209

Ultra Low Power CMOS Transceiver

XE1209

30 – 70 kH Ultra Low Power CMOS Transceiver

GENERAL DESCRIPTION

The XE1209 is a CMOS Ultra Low-Power

transceiver for short-range low frequency RF data

communications system. It uses 2-level Continuous

Phase FSK modulation. The receiver section

includes the preamplifier, the down-converter, and

the channel filters, the demodulator and the bit

synchronizer, which delivers synchronized data at

the output. The transmitter section is composed of a

Direct Digital Synthesizer (DDS), and the power

amplifier generating a square-wave output current.

The XE1209 has carrier detector to detect the

presence of a signal at the carrier frequency. The

local clock is based on a 32kHz crystal oscillator and

a PLL to generate the required Local oscillator (LO)

frequency. The XE1209 has a simple interface with

an external microcontroller.

KEY FEATURES

• Single chip transceiver

• Low cost

• Low external component count

• Ultra Low Power

-

Stand-by mode

-

Carrier detection mode

-

Low-power receiver mode

• Unlicensed frequency band

• Short range applications; 1 to 3 meters

APPLICATIONS

• Remote control

• Short Range Wireless data

• Access control

ORDERING INFORMATION

Part number

XE1209C012TRLF

Temperature

range

-10°C to

+60°

Package

SO-20

RoHS compliant

Rev 1 August 2005

www.semtech.com

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