TDA5101 データシートの表示（PDF） - Infineon Technologies

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TDA5101

ASK Transmitter 315 MHz

Infineon Technologies 

Confidential

TDA 5101A

Preliminary

Product Description

2.1 Overview

The TDA5101A is a single chip ASK transmitter for the frequency band

315 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 live. Additionally features like a power down mode, a

low power detect and a divided clock output are implemented.

2.2 Applications

s Keyless entry systems

s Remote control systems

s Alarm systems

s Communication systems

2.3 Features

s fully integrated frequency synthesizer

s VCO without external components

s high efficiency power amplifier

s frequency range 315 MHz

s ASK modulation

s low supply current (typically < 7mA)

s voltage supply range 2.1 - 4 V

s power down mode

s low voltage sensor

s low external component count

Semiconductor Group

2-2

Specification, May 1999

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