TDA7110 datasheet(5/39 Pages) INFINEON

5 / 39 page

Product Description

1 - 2

TDA7110

Wireless Components

Data Sheet, December 2008

1.1 Overview

The TDA7110 is a single chip ASK/FSK transmitter for the frequency bands

868-870 MHz and 433-435 MHz. The IC offers a high level of integration and

needs only a few external components. The device contains a fully integrated

PLL synthesizer and a high efficiency power amplifier to drive a loop antenna.

A special circuit design and an unique power amplifier design are used to save

current consumption and therefore to save battery life. Additional features like

a power down mode, a low power detect, a selectable crystal oscillator fre-

quency and a divided clock output are implemented. The IC can be used for

both ASK and FSK modulation.

1.2 Applications

■ Keyless entry systems

■ Remote control systems

■ Alarm systems

■ Communication systems

1.3 Features

■ fully integrated frequency synthesizer

■ VCO without external components

■ high efficiency power amplifier typ. 10 dBm @ 3 V

■ switchable frequency range 868-870/433-435 MHz

■ ASK/FSK modulation

■ low supply current typ. 13 mA @ 3 V

■ voltage supply range 2.1 - 4 V

■ power down mode

■ low voltage sensor

■ selectable crystal oscillator 6.78 MHz/13.56 MHz

■ programmable divided clock output for µC

■ low external component count

TDA7110 データシート(PDF) 5 Page - Infineon Technologies AG