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Application Example and Algorithms
PDF Software Description
 
Application Hints for ATA5723/ATA5724/ATA5728 (22 pages, revision B, updated 9/08)
 
Application of 315-MHz Short Range Devices Under FCC Regulations (13 pages, revision A, updated 6/06)
 
ATA542x/ATA581x/ATA582x (8 pages, revision A, updated 10/09)
Using UHF Transceiver Internal RX/TX Switch
 
ATA5743 Integrating an External LNA (7 pages, revision A, updated 6/06)
 
ATA5756/ATA5757 - FSK Modulation Based on the Crystal Pulling Method (9 pages, revision A, updated 1/08)
 
Electronic Immobilizers for the Automotive Industry (13 pages, updated 10/00)
 
Equivalent Circuit's Description for Digital Interface of ATA5743 (4 pages, revision A, updated 10/06)
 
Hardware Description Flamingo™ RF Design Kit (17 pages, revision B, updated 1/06)
 
Hardware Description RF Design Kit (10 pages, revision C, updated 11/05)
 
Hints in Configuring the ATA5745/ATA5746 (14 pages, revision B, updated 02/08)
 
Software Description RF Design Kit (26 pages, revision C, updated 11/05)
 
Transceiver Base Station Board ATAB5811-x-B/ ATAB5812-x-B (8 pages, revision A, updated 8/06)
The ATA5811/12 is part of Atmel®’s RF transceiver family dedicated to unlicensed frequency bands. This document describes the bill of materials (BOM) required to operate the ATA5811/12, allowing use of this RF transceiver in the popular ISM bands 315/433/868 MHz.
 
Transceiver Base Station Board ATAB5823-x-B/ ATAB5824-x-B (7 pages, revision A, updated 8/06)
The ATA5823/24 is part of Atmel®’s RF multichannel transceiver family dedicated to unlicensed frequency bands. This document describes the bill of materials (BOM) required to operate the ATA5823/24, allowing use of this RF transceiver in the popular ISM bands 315/433/868 MHz.
 
Transmitter ICs ATA5756 and ATA5757 - Summary (24 pages, revision B, updated 7/07)
Reference Design for UHF/ASK Transmitter ATA5756 and ATA5757
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Communication Modules
PDF Software Description
 
Range Calculation for 300 MHz to 1000 MHz Communication Systems (22 pages, revision A, updated 01/09)
This paper begins by introducing the Friis Transmission Equation and examining the terms comprising it. Then, real-world environmental factors which influence RF communication range and how they affect a "Link Budget" are investigated. Following that, some methods for optimizing RF-link range are given. Range-calculation spreadsheets, including the special case of RKE, are presented.
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Development Tools
PDF Software Description
 
ATAK5278-82 LF Wake-up Demonstrator Kit (21 pages, revision B, updated 6/06)
The demonstrator is offered to promote a LF wake-up channel, using the LF antenna driver ATA5278 and the 3D receiver ATA5282 (later ATA5790-EK2). This tool may be helpful making reference measurements and for system analysis. Typical wake-up applications can be found in vehicles for passive entry (PE) but also for waking up of battery-driven systems which normally stay in sleep mode.
 
ATAK5279-82 LF Wake-up Demonstrator Kit (19 pages, revision A, updated 7/08)
The demonstrator is intended to show LF wake-up functionality using the new six-fold LF antenna driver ATA5279 and the 3D receiver ATA5282 (later ATA5790-EK2) The demonstrator may also be helpful for system study and as reference tool for target applications. Typical wake-up applications are designed in vehicles for Passive Entry (PE) and Tire Pressure Monitoring (TPMS).
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General Purpose
PDF Software Description
AVR411: Secure Rolling Code Algorithm for Wireless Link (22 pages, revision D, updated 11/09)
This application note describes a Secure Rolling Code Algorithm transmission protocol for use in a unidirectional wireless communication system.
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Getting Started
PDF Software Description
 
Getting Started with ATAB5749 Using RF Design Kit Software (16 pages, revision A, updated 12/08)
 
Getting Started with the ATA5745/ATA5746 Evaluation Kit (5 pages, revision A, updated 7/06)
 
Quick Start RF Transceiver Evaluation Kit (6 pages, revision B, updated 7/06)
The RF Transceiver Evaluation Kit exists to provide familiarity with the functionality of Atmel®’s UHF ASK/FSK transceivers. For this purpose, software is included which enables the user to configure the registers easily and conveniently.
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