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ADM2587EBRWZ 产品设计参考

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EVAL-ADM2582EEBZ/EVAL-ADM2587EEBZ User Guide
UG-044
One Technology Way P. O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com
4-Layer EN55022 Class B Radiated Emissions Compliant Evaluation Board for the
ADM2582E/ADM2587E 2.5 kV rms Signal and Power Isolated RS-485/RS-422
Transceivers with ±15 kV ESD Protection
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. D | Page 1 of 13
FEATURES
2.5 kV rms power and signal isolated RS-485/RS-422 transceiver
Printed circuit board (PCB) layout optimized for EN55022
radiated emissions according to the AN-1349 Application
Note
ADM2582E passes EN55022 Class B (certification available)
ADM2587E passes EN55022 Class B (certification available)
4-layer PCB layout that minimizes PCB material cost
Convenient connections for power and signal through screw
terminal blocks
Configurable as half duplex or full duplex
5 V or 3.3 V operation
Easily configurable through jumper connections
Test points for measuring all signals
EVALUATION KIT CONTENTS
EVAL-ADM2582EEBZ or EVAL-ADM2587EEBZ evaluation
board
DOCUMENTS NEEDED
AN-1349 Application Note
ADM2582E/ADM2587E data sheet
GENERAL DESCRIPTION
The ADM2582E/ADM2587E evaluation board can easily evaluate
the ADM2582E and ADM2587E power and signal isolated RS-485/
RS-422 transceivers. Screw terminal blocks provide convenient
connections for the power and signal connections. The evaluation
board is easily configured through jumper connections. The board
can be used in half-duplex or full-duplex configurations and has
a 120 Ω termination resistor fitted on the receiver input. The
evaluation board can be used with either the ADM2582E 16 Mbps
device or the ADM2587E 500 kbps device. The driver and receiver
are enabled and disabled by jumper connections. Test points are
included on the power and signal lines on both sides of the
isolation barrier.
EN55022 RADIATED EMISSIONS
The ADM2582E/ADM2587E evaluation board is designed to
reduce emissions generated by the high frequency switching
elements used by the isoPower® technology to transfer power
through the ADM2582E/ADM2587E integrated transformer.
The layout of the evaluation board is generated using the guidelines
provided in the AN-1349 Application Note, PCB Implementation
Guidelines to Minimize Radiated Emissions on the ADM2582E/
ADM2587E RS-485/RS-422 Transceivers. The ADM2587E and
ADM2582E evaluation boards are tested and certified to pass
EN55022 Class B.
EVALUATION BOARD PHOTOGRAPH
08420-001
Figure 1.
页面指南

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