EVAL-ADM2582EEMIZ/EVAL-ADM2587EEMIZ User Guide
UG-916
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
2-Layer EN55022 Class A Radiated Emissions Compliant Evaluation Board for the
ADM2582E
/
ADM2587E
2.5 kV rms Signal and Power Isolated RS-485 Transceivers
with ±15 kV ESD Protection
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 12
FEATURES
2.5 kV rms power and signal isolated RS-485/RS-422 transceiver
PCB layout optimized for EN55022 radiated emissions
according to the
AN-1349 Application Note
ADM2587E
passes EN55022 Class A (certification available)
ADM2582E
passes EN55022 Class A (certification available)
2-layer printed circuit board (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-ADM2582EEMIZ
or
EVAL-ADM2587EEMIZ
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
iso
Power® 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 A.
EVALUATION BOARD PHOTOGRAPH
14003-
001
Figure 1.
