XE1202A データシートの表示（PDF） - Semtech Corporation

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XE1202A

433 MHz / 868 MHz / 915 MHz Low-Power, Integrated UHF Transceiver

Semtech Corporation 

XE1202A TrueRF™

The XE1202A TrueRF™ UHF Transceiver IC provides a single chip solution intended for use as a low cost FSK

transceiver to establish a frequency-agile, half-duplex, bi-directional RF link, with non-return to zero data coding.

The device is available in an LQFP44 package and is designed to provide a fully functional multi-channel FSK

transceiver. It is intended for applications in the 433 and 868 MHz European bands and the North American 902-

928 MHz ISM band. The single chip transceiver operates down to 2.4 V and provides low power consumption

solutions for battery-operated and power sensitive applications. Thanks to the low external components count, the

XE1202A is ideal for small size, low-cost UHF links. Its reference board has no tunable components, which

facilitates high volume cost sensitive production.

The XE1202A TrueRF™ can easily be interfaced to a controller such as the XEMICS’ XE8000 Series of ultra low-

power microcontrollers. The XE1202A TrueRF™ serial control registers are programmed by the MCU and the MCU

manages the communication protocol.

1 Functional Block Diagram

RFA

RFB

RFOUT

IAmp

QAmp

LNA

LO

Buff.

PA

I

AMP

BPF

Q AMP

BPF

AMP

Limiter

AMP

Limiter

FSK

Demod.

Bit

Sync.

Phase

Shifter

Prog.

divider

VCO

PFD

RSSI

FEI

modulator

/n Synthesizer

Oscillator

/n

Clock Out

Pattern

Recognition

Control

Logic

POR

I Ref

SCAN

DCLK

DATAOUT

PATTERN

MODE 0

MODE 1

MODE 2

SI

SO

SCK

EN

DATAIN

Figure 1: XE1202A TrueRF™ block diagram

© Semtech 2006

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