DS2010_2

Dec ‘01

©2001 REG No 277 4001, England.

Page 1

FM Narrow Band Transceiver Modules

X2010 / X2011

Features

antenna (434 & 868 MHz versions)

version available to order)

narrower BW filter utilised

Amateur Repeater Stations

Applications

Systems

General Description

The

X2010

radio

transceiver

module

was

designed to provide reliable wireless operation at

moderate data rates for use throughout the world.

Its unique features of narrower RF channel

bandwidths and hence high interference rejection

capability at SAW module prices make the X2010

the ideal choice for next generation applications.

Available at several frequency options, these

modules have been designed to provide a reliable

wire free link within the presence of other

interference at the same frequency, accounting for

the increased traffic from other legal users of the

radio spectrum

The transmitter section uses a PLL design that

utilises a highly stable and accurate reference

crystal oscillator. This results in a RF transmission

tightly controlled in its frequency spread and over

its operating temperature range. This is exploited

in the receiver design.

The receiver section uses a single conversion

super-het design, again using PLL technology.

Hence narrower bandwidth RF filters are utilised

which result in superior rejection of interference as

well as providing good receiver sensitivity and

hence range