EVAL-ADM2491EEBZ

Evaluation Board User Guide UG-302 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 Board for the ADM2491E ±8 kV Signal Isolated, High Speed (16 Mbps), ESD Protected, Full/Half Duplex RS-485 Transceiver FEATURES GENERAL DESCRIPTION Configurable as half/full duplex, isolated RS-485/RS-422 transceivers Suitable for 5 V or 3.3 V operation on VDD1 Suitable for 5 V operation on VDD2 16 Mbps data rate 32 nodes on bus The EVAL-ADM2491EEBZ allows the isolated ADM2491E RS-485 transceiver to be easily and quickly evaluated. The evaluation board allows all of the input and output functions to be exercised without the need for external components. The ADM2491E differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. ADM2491E APPLICATIONS The device employs Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package. The logic side of the device is powered with either a 5 V or a 3.3 V supply, and the bus side uses an isolated 5 V supply. Isolated RS-485/RS-422 interfaces INTERBUS Industrial field networks Multipoint data transmission systems EVALUATION KIT CONTENTS EVAL–ADM2491EEBZ 10028-001 EVALUATION BOARD DIGITAL PHOTOGRAPH Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 8 UG-302 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Configurations ...................................................3 ADM2491E Applications ................................................................. 1 Setting Up the Evaluation Board .................................................3 Evaluation Kit Contents ................................................................... 1 Evaluation Board Schematic and Artwork.....................................4 General Description ......................................................................... 1 Ordering Information .......................................................................6 Evaluation Board Digital Photograph............................................ 1 Bill of Materials ..............................................................................6 Revision History ............................................................................... 2 Related Links ..................................................................................6 REVISION HISTORY 2/13—Rev. 0 to Rev. A Changes to Features and General Description ............................. 1 Changes to Setting Up the Evaluation Board Section ................. 3 8/11—Revision 0: Initial Version Rev. A | Page 2 of 8 Evaluation Board User Guide UG-302 EVALUATION BOARD CONFIGURATIONS SETTING UP THE EVALUATION BOARD The EVAL-ADM2491E EBZ allows the isolated ADM2491E RS-485 transceiver to be easily and quickly evaluated. The evaluation board allows all of the input and output functions to be exercised without the need for external components. A termination resistor, RT, is fitted on the receiver inputs; this can be changed or removed, if necessary. The value of the termination resistor should be equal to the characteristic impedance of the cable used; 120 Ω is the standard termination resistor value. Remove RT if the board is connected to a bus that is already terminated at both ends. The logic side is suitable for 5 V or 3.3 V operation on VDD1. There is a 100 nF decoupling capacitor, C2, and a 10 nF decoupling capacitor, C1 fitted between VDD1 and GND1. The bus side is suitable for 5 V operation on VDD2. There is a 100 nF decoupling capacitor, C3, and a 10 nF decoupling capacitor, C4, fitted between VDD2 and GND2. See Figure 2. Refer to AN-960 Application Note, RS-485/RS-422 Circuit Implementation Guide, for an explanation of bus termination and fail-safe biasing. HALF-/FULL DUPLEX CONFIGURATION To set up the EVAL-ADM2491EEBZ for full duplex configuration, the jumpers, LK1 and LK2, must be removed. For a half-duplex configuration, these jumpers must be included. LK1 ties B to Y, and LK2 ties A to Z. Table 1. Board Configurations and Jumper Settings Configuration Half-Duplex Configuration Full Duplex Configuration RE High RE Low Using the Screw Terminal for RE RTS High RTS Low Using the Screw Terminal for RTS Jumpers Fitted LK1, LK2 Not applicable LK4 (Position A) LK4 (Position B) LK4 (Position C) LK3 (Position A) LK3 (Position B) LK3 (Position C) Rev. A | Page 3 of 8 Jumpers Open Not applicable LK1, LK2 LK4 (Position B and Position C) LK4 (Position A and Position C) LK4 (Position A and Position B) LK3 (Position B and Position C) LK3 (Position A and Position C) LK3 (Position A and Position B) UG-302 Evaluation Board User Guide EVALUATION BOARD SCHEMATIC AND ARTWORK VCC1 VCC1 VCC2 J2-2 J1-2 GND1 C4 10nF C1 10nF U1 GND1 LK4 A C GND1 LK1 A VCC1 GND1 GND2 R2 120Ω J3-2 SO16 ADM2491E SO16WB RE B C J3-3 DE J4-1 B J4-2 Z J4-3 Y TXD J4-5 J4-6 GND2 Figure 2. EVAL-ADM2491EEBZ Schematic 10028-003 J3-4 J4-4 R3 100Ω Figure 3. EVAL-ADM2491EEBZ Solder Side Rev. A | Page 4 of 8 GND2 10028-002 B A LK2 GND1 RXD J2-1 GND2 LK3 RXD RE DE TXD VCC1 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 J1-1 J3-1 C3 100nF R1 120Ω C2 100nF UG-302 10028-004 Evaluation Board User Guide 10028-005 Figure 4. EVAL-ADM2491EEBZ Components Figure 5. EVAL-ADM2491EEBZ Silkscreen Rev. A | Page 5 of 8 UG-302 Evaluation Board User Guide ORDERING INFORMATION BILL OF MATERIALS Table 2. Quantity Reference Designator Description Supplier/Part Number 2 1 2 2 2 1 1 2 R1, R2 R3 C1, C4 C2, C3 J1, J2 J4 J3 LK1, LK2 Tyco Electronics Connectivity/Neohm/CPF0603B120RE1 Tyco Electronics Connectivity/Neohm/CPF0603B120RE1 AVX Corporation/06031C103K4Z2A AVX Corporation/06033G104ZAT2A Lumberg/KRM 02 Lumberg/KRM 03 Lumberg/KRM 04 SPC Technology/SPC20499, Harwin/M7566-05 2 LK3, LK4 1 1 1 4 U1 GND1 VCC1 RXD, DE, RE, TXD Resistor, 120 Ω, 0603 Resistor, 100 Ω, 0603 Capacitor, Size 0603, 10 nF Capacitor, Size 0603, 100 nF CON\POWER, 2-pin terminal block (5 mm pitch) CON\POWER, terminal block, PCB, 3-way CON\POWER4, 4-pin terminal block Board-to-board connector header, 4-way, 2-row and Jumper ×2 Board-to-board connector header, 2-way, 1-row and Jumper × 2 16-lead wide body SOIC Test point, black Test point, red Test point, yellow Molex/22-28-4020, Harwin/M7566-05 Analog Devices/ADM2491EBRWZ Vero Technologies/20-2137 Vero Technologies/20-313137 Vero Technologies/20-313140 RELATED LINKS Resource ADM2491E AN-960 Description 5 kV Signal Isolated, High Speed (16 Mbps), ESD Protected, Full/Half Duplex RS-485 Transceiver RS-485/RS-422 Circuit Implementation Guide Rev. A | Page 6 of 8 Evaluation Board User Guide UG-302 NOTES Rev. A | Page 7 of 8 UG-302 Evaluation Board User Guide NOTES ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. ©2011–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG10028-0-2/13(A) Rev. A | Page 8 of 8