DEMO90121DA

DEMO90121DA Datasheet

DEMO90121DA

Part	Datasheet
DEMO90121DA	DEMO90121DA (pdf)

PDF Datasheet Preview
DEMO90121DA RFID Door Access Demo User Manual Battery operated stand alone RFID reader BOM cost target Low power consumption 400uA average Optimized form factor for easy integration Short range contacless Door Access Control Short range RFID terminal Ordering Information Part No. DEMO90121DA Description RFID Door Access Demonstrator 1 Scope The DEMO90121DA is a turnkey contactless door access example based on the RFID transceiver IC MLX90121. Once set up, it detects and reads ISO14443A cards and is capable through software configuration of lighting a red or a green LED. As a stand alone application running on battery, the current consumption is optimized, taking into account a fast response time. The form factor is minimized to demonstrate the high level of integration allowed by the MLX90121. The bill of material of DEMO90121DA targets a cost of per component set for 1000 modules. Complete schematics, bill of material and layout are annexed to this document allowing a fast start for development. Source code of the firmware is based on the FW90121 library and is available on the CD ROM provided with the DEMO90121DA. This device is based on ISO14443A RFID standard, but the software library makes it is easy to adapt the firmware to use another ISO protocol. This document includes fast start instructions, describes the performance of the demo and explains its hardware and software. One can see this document as a starting point for building their own access control system by adapting the functions and performances to their specific requirements. 2 Related Melexis Products MLX90121 13.56MHz transceiver Note 1 The device is for demonstration purpose and has not been tested for compliance with FCC, ETSI or any other regulations. Note 2 The MLX90121 is limited to positive temperatures in the ISO14443A mode. Therefore and without any changes, this demonstrator is suitable for indoor applications. Should you require outdoor operations, you may modify its firmware to use the demonstrator with ISO14443B cards. Page 1 of 20 User Manual Apr. 2008 DEMO90121DA RFID Door Access Demo User Manual Table of Contents 1 Scope 1 2 Related Melexis Products 1 3 Introduction 3 4 Box 3 5 Connections 5 6 Working principle 5 7 Functions and 5 System initialization 5 Opening the 5 Transfer access right 5 8 Observations 6 9 Hardware 7 RF part 7 Microcontroller 8 9 10 Firmware 11 Structure 11 Practical 15 11 Power 15 12 16 13 17 14 Disclaimer 20 Page 2 of 20 User Manual Apr. 2008 DEMO90121DA RFID Door Access Demo User Manual 3 Introduction You purchased a DEMO90121DA. Thanks for choosing Melexis. This demonstrator is a contactless door access solution based on the MLX90121. This document contains the instructions to use and evaluate the functions and the performances of this demonstrator. All the necessary hardware is provided in the packaging box and the microcontroller on-board is already programmed with the same firmware as the one present on the CD. All that you need to do is to plug the cables, and then to check visually the LED status when one or more of the tag cards are close to the antenna. Should you want to start a development based on this demonstrator, you will find in this document and on the CD all information like schematics, board layout, list of component, firmware source C code and the related application note. Please note that all this material is provided to support the use of the related Melexis product. Duplication, circulation or storage on data carriers in any manner for any other type of use are not authorized by Melexis unless specific agreement. 4 Box Content You will find in the box the following components. • 1 RFID reader board LED D3 LED D4 Battery cable connector Antenna connector • 1 antenna board Figure 1 RFID reader board. Top side Antenna connector Figure 2 Antenna ANT2_0 Page 3 of 20 User Manual Apr. 2008 • 3 tag cards DEMO90121DA RFID Door Access Demo User Manual Figure 3 ISO14443A tag cards • 9V battery and battery cable Battery connector Battery Connector to reader board

PDF Datasheet Preview

DEMO90121DA

RFID Door Access Demo User Manual

Battery operated stand alone RFID reader BOM cost target Low power consumption 400uA average Optimized form factor for easy integration

Short range contacless Door Access Control Short range RFID terminal
Ordering Information

Part No. DEMO90121DA

Description RFID Door Access Demonstrator
1 Scope

The DEMO90121DA is a turnkey contactless door access example based on the RFID transceiver IC MLX90121. Once set up, it detects and reads ISO14443A cards and is capable through software configuration of lighting a red or a green LED.

As a stand alone application running on battery, the current consumption is optimized, taking into account a fast response time. The form factor is minimized to demonstrate the high level of integration allowed by the MLX90121. The bill of material of DEMO90121DA targets a cost of per component set for 1000 modules.

Complete schematics, bill of material and layout are annexed to this document allowing a fast start for development. Source code of the firmware is based on the FW90121 library and is available on the CD ROM provided with the DEMO90121DA. This device is based on ISO14443A RFID standard, but the software library makes it is easy to adapt the firmware to use another ISO protocol.

This document includes fast start instructions, describes the performance of the demo and explains its hardware and software. One can see this document as a starting point for building their own access control system by adapting the functions and performances to their specific requirements.
2 Related Melexis Products

MLX90121 13.56MHz transceiver

Note 1 The device is for demonstration purpose and has not been tested for compliance with FCC, ETSI or any other regulations.

Note 2 The MLX90121 is limited to positive temperatures in the ISO14443A mode. Therefore and without any changes, this demonstrator is suitable for indoor applications. Should you require outdoor operations, you may modify its firmware to use the demonstrator with ISO14443B cards.

Page 1 of 20

User Manual Apr. 2008

DEMO90121DA

RFID Door Access Demo User Manual

Table of Contents
1 Scope 1 2 Related Melexis Products 1 3 Introduction 3 4 Box 3 5 Connections 5 6 Working principle 5 7 Functions and 5

System initialization 5 Opening the 5 Transfer access right 5 8 Observations 6 9 Hardware 7 RF part 7 Microcontroller 8 9 10 Firmware 11 Structure 11 Practical 15 11 Power 15 12 16 13 17 14 Disclaimer 20

Page 2 of 20

User Manual Apr. 2008

DEMO90121DA

RFID Door Access Demo User Manual
3 Introduction

You purchased a DEMO90121DA. Thanks for choosing Melexis. This demonstrator is a contactless door access solution based on the MLX90121. This document contains the instructions to use and evaluate the functions and the performances of this demonstrator. All the necessary hardware is provided in the packaging box and the microcontroller on-board is already programmed with the same firmware as the one present on the CD. All that you need to do is to plug the cables, and then to check visually the LED status when one or more of the tag cards are close to the antenna. Should you want to start a development based on this demonstrator, you will find in this document and on the CD all information like schematics, board layout, list of component, firmware source C code and the related application note. Please note that all this material is provided to support the use of the related Melexis product. Duplication, circulation or storage on data carriers in any manner for any other type of use are not authorized by Melexis unless specific agreement.
4 Box Content

You will find in the box the following components.
• 1 RFID reader board

LED D3 LED D4

Battery cable connector Antenna connector
• 1 antenna board

Figure 1 RFID reader board. Top side

Antenna connector

Figure 2 Antenna ANT2_0 Page 3 of 20

User Manual Apr. 2008
• 3 tag cards

DEMO90121DA

RFID Door Access Demo User Manual

Figure 3 ISO14443A tag cards
• 9V battery and battery cable

Battery connector

Battery

Connector to reader board

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived DEMO90121DA Datasheet file may be downloaded here without warranties.

Datasheet ID: DEMO90121DA 647772