Evaluation Board User Guide
UG-543
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
Evaluation Boards for Full-Duplex and Half-Duplex RS-485 Transceivers
in 8-lead/14-lead SOIC Packages
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 16
FEATURES
Easy evaluation of half- and full-duplex RS-485 transceivers
Board layouts for standard RS-485 SOIC footprints
8-lead, SOIC, half-duplex RS-485 (
EVAL-RS485HDEBZ
)
8-lead, SOIC, full-duplex RS-485 (
EVAL-RS485FD8EBZ
)
14-lead, SOIC, full-duplex RS-485 (
EVAL-RS485FDEBZ
)
Power/ground connections through screw terminal blocks
Screw terminal blocks for logic I/O and RS-485 signals
Jumper selectable enable/disable for RE and DE
Test points for measuring all signals
Resistors and footprints for termination and biasing
networks
APPLICATIONS
Full- and half-duplex RS-485 transceiver evaluation
EVALUATION KIT CONTENTS
1
EVAL-RS485HDEBZ
or
1
EVAL-RS485FD8EBZ
or
1
EVAL-RS485FDEBZ
(Main device available separately when ordering)
GENERAL DESCRIPTION
The
EVAL-RS485HDEBZ
,
EVAL-RS485FD8EBZ
, and
EVAL-RS485FDEBZ
allow quick and easy evaluation of RS-485
transceivers with standard SOIC footprints. The evaluation
board allows all of the input and output functions to be
exercised without the need for external components. Screw
terminal blocks provide convenient connections for power and
ground, digital I/O, and RS-485 signals.
The
EVAL-RS485HDEBZ
evaluation board has a footprint for
a half-duplex RS-485 transceiver in an 8-lead SOIC package.
The
EVAL-RS485FD8EBZ
evaluation board has a footprint for
a full-duplex RS-485 transceiver in an 8-lead SOIC package.
The
EVAL-RS485FDEBZ
evaluation board has a footprint for a
full-duplex RS-485 transceiver in a 14-lead SOIC package.
EVAL-RS485HDEBZ
1
1390-
001
Figure 1.
EVAL-RS485FD8EBZ
1
1390-
002
Figure 2.
EVAL-RS485FDEBZ
1
1390-
003
Figure 3.
