Wireless audio module for PA systemsDECT networking ensures clear sound, reliable transmission and easy set-up

What makes a good public address system? For the public, it’s crystal-clear sound and reliable transmission from microphone to speaker so they always

get the message. Users want a solution that is easy to install and use. System developers are looking for a short product creation cycle and the flexibility

to address different environments and operational set ups.

DECT wireless networking technology delivers on all these fronts. It offers interference-free, long-range communication in any environment, as well as

easy system installation and expansion.

Now Dialog is offering the world’s first DECT-based wireless networking solution specifically designed for public address systems. Delivered as a

complete and pre-tested wireless audio module, it makes system development as simple as possible. You don’t need any radio frequency (RF) expertise

or resources for design and production. There is no need for expensive RF testing equipment either.

To streamline your development cycle even further, the wireless audio module for public address systems is also available in a complete reference design.

Features

• DECT / DECT 6.0-based digital wireless networking solution for public address systems

• Complete, fully tested module comprising all necessary hardware (including antenna) and software

• No RF experience or resources needed for system development or production

• Supports both shared and personal microphone set ups

• Supports 14 kHz audio bandwidth

Benefits

• Excellent voice quality built in

• Reliable, interference-free and encrypted transmission

· Can have multiple microphones and speakers in the same room

• Simple, hassle-free installation

· No frequency planning required

· Automatic channel selection

• Works both indoors and outdoors

• Long range transmission: 50 m indoors and 300 m outdoors

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The ideal technology for public address

DECT wireless networking technology is the ideal choice for public address systems. Originally designed for cordless telephony, it naturally delivers

outstanding voice quality as standard. As a digital RF technology, DECT is ideal for both indoor and outdoor applications, and its long range makes it

possible to cover large areas with a single base station.

Moreover, DECT operates in a licensed, royalty-free band of the radio spectrum and features automatic channel selection. This eliminates interference

issues and guarantees reliable transmission. It also means multiple base stations can be used in the same installation and multiple systems can be

installed at the same location without having to worry about frequency planning.

DECT also offers push-button registration, which makes it simple to set up and expand wireless public address systems. The same characteristic means

DECT systems can automatically support both shared and personal microphone scenarios, so microphones can be assigned to specific rooms or to

individual people.

Already thoroughly field-proven in more than 250 million residential cordless phone systems, DECT has a track record that few other wireless

technologies can match.

Dialog makes it easy to embed the benefits of DECT into your public address application with our drop-in wireless audio module. The wireless audio

module is a complete solution for public address networking, integrating all necessary hardware and software in one compact package.

That includes a powerful, multi-core DECT baseband processor, transceiver, power amplifier and antenna plus complete protocol and application inter-

face software. It also includes new application-specific software developed especially for the module by our partner RTX Telecom.

All this is delivered in one type-approved, tested and TBR-6 / FCC certified module. So you don’t need any in-depth knowledge of DECT protocols or

RF design to create your system. Just drop a module into the base station speaker and another into the microphone(s).

The wireless audio module for public address systems supports both DECT and DECT 6.0, so it can be used in systems around the world.

Wireless networking made easy

32 www.dialog-semiconductor.com

Want to see for yourself the benefits that DECT and our wireless audio modules bring to public address systems? Dialog and RTX have created a public

address system demonstration kit.

The kit includes all the hardware and software necessary to create a basic public address system. That includes a standard radio microphone and a base

station development board. Based on our wireless audio module for public address systems, the board can be easily connected to a speaker amplifier.

To simplify your product creation cycle, we offer a public address system reference kit. This features full documentation – including schematics, a com-

plete Bill of Materials (BOM) and a functional description. The reference design kit acts as the ideal basis for developing complete applications of any

size, helping you get to market fast with a range of easy-to-install and easy-to-use public address solutions.

PA system reference kit

This publication is issued to provide outline information only, which (unless agreed by Dialog Semiconductor in writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to products or services concerned. Dialog Semiconductor reserves the right to alter without notice the specification, design, price or conditions of supply of the product. Customer takes note that Dialog Semiconductor’s products are not designed for use in devices or systems intended for supporting or monitoring life nor for surgical implants into the body. Customer shall notify the company of any such intended use so that Dialog Semiconductor may determine suitability. Customer agrees to indemnify Dialog Semiconductor for all damages that may be incur-red due to use without the company’s prior written permission of products in such applications. © Dialog Semiconductor 2011. All rights reserved.

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