EVAL-ADM2482EEB5Z

Evaluation Board User Guide UG-210 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 the ADM2482E and ADM2487E Isolated RS-485 Transceivers FEATURES GENERAL DESCRIPTION Easy evaluation of the ADM2482E/ADM2487E Isolated ground plane layout Configurable as full duplex or half duplex Evaluation of the ADM2482E at 16 Mbps Evaluation of the ADM2487E at 500 kbps The ADM2482E/ADM2487E evaluation boards allow the ADM2482E/ADM2487E isolated RS-485 transceivers to be quickly and easily evaluated. The evaluation board allows all of the input and output functions to be exercised without the need for external components. ADM2482E/ADM2487E APPLICATIONS The ADM2482E/ADM2487E feature an integrated transformer driver that outputs a pair of square waves to an external transformer to provide isolated power. When the ADM2482E/ ADM2487E are powered by 3.3 V on the logic side (VDD1), a transformer, U3, is required with a turns ratio of 1:1.5 (DA2303-AL). This ensures that there is enough headroom for the ADP3330 LDO to output a regulated 3.3 V output (EVAL-ADM2482EEB3Z and EVAL-ADM2487EEB3Z). Isolated RS-485/RS-422 interfaces Process field bus (PROFIBUS) networks Industrial field networks Multipoint data transmission systems EVALUATION KIT CONTENTS EVAL-ADM2482EEB3Z, EVAL-ADM2487EEB3Z, EVAL-ADM2482EEB5Z, or EVAL-ADM2487EEB5Z When the ADM2482E/ADM2487E are powered by 5 V on the logic side, a transformer, U3, is required with a turns ratio of 1:1 (GA3157-AL) to give a 5 V input for the ADP3330, which regulates an output of 3.3 V output (EVAL-ADM2482EEB5Z and EVAL-ADM2487EEB5Z). FUNCTIONAL BLOCK DIAGRAM CENTER TAPPED TRANSFORMER POWER CONNECTOR LDO RECTIFIER IN VDD1 ADP3330 SD GND1 +3.3V ISO DE GND2 D2 D1 GND VDD2 ADM2482E/ADM2487E OSC BUS CONNECTOR GALVANIC ISOLATION VDD1 LOGIC CONNECTOR OUT TxD RxD Y Z A B RT GND2 GND1 GND2 Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 12 09479-001 RE UG-210 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1  ADM2482E/ADM2487E Applications .......................................... 1  Evaluation Kit Contents................................................................... 1  General Description ......................................................................... 1  Functional Block Diagram .............................................................. 1  Revision History ............................................................................... 2  Evaluation Board Configurations................................................... 3  3.3 V Evaluation Board................................................................ 3  5 V Evaluation Board ................................................................... 3  Full Duplex, Bus Biasing And Termination Resistors on Receiver Input................................................................................3  Full Duplex, Bus Biasing And Termination Resistors on Receiver and Transmitter .............................................................3  Half Duplex with Bus Biasing and Termination .......................3  Powering Up the Bus Side ............................................................3  Evaluation Board Schematic and Artwork.....................................5  Ordering Information.......................................................................9  Bill of Materials..............................................................................9  Related Links......................................................................................9  REVISION HISTORY 8/11—Rev. 0 to Rev. A Changed EVAL2482EEB5Z to EVAL-ADM2482EEB5Z, EVAL2487EEB5Z to EVAL-ADM2487EEB5Z, and ADP1710 to ADP3330 Throughout ..................................................................... 1 Change to Figure 1 ........................................................................... 1 Changes to Evaluation Board Configurations Section ................ 3 Changes to Table 1............................................................................ 4 Change to Figure 2 ........................................................................... 5 Changes to Figure 3.......................................................................... 6 Changes to Figure 4.......................................................................... 7 Changes to Figure 5.......................................................................... 8 Changes to Table 2 and Related Links Section ............................. 9 11/10—Revision 0: Initial Version Rev. A | Page 2 of 12 Evaluation Board User Guide UG-210 EVALUATION BOARD CONFIGURATIONS 3.3 V EVALUATION BOARD The EVAL-ADM2482EEB3Z and EVAL-ADM2487EEB3Z are shipped in a 3.3 V full-duplex configuration without any bus biasing resistors inserted by default. The jumper settings are shown in Table 1. The transformer fitted as U3 for the 3.3 V version of the evaluation board is the DA2303-AL with a turns ratio of 1:1.5. The DA2303-AL allows enough headroom for the ADP3330 LDO to output a regulated 3.3 V output. 5 V EVALUATION BOARD The EVAL-ADM2482EEB5Z and EVAL-ADM2487EEB5Z are shipped in a 5 V full-duplex configuration without any bus biasing resistors inserted by default. The jumper settings are shown in Table 1. The transformer fitted as U3 for the 5 V version of the evaluation board is the GA3157-AL with a turns ratio of 1:1. The GA3157-AL is required to give a 5 V input to the ADP3330 LDO, which regulates an output of 3.3 V. FULL DUPLEX, BUS BIASING AND TERMINATION RESISTORS ON RECEIVER INPUT Bus biasing resistors can be fitted on the receiver input by inserting resistors R3 and R4. Jumpers LK11 and LK13 must be inserted for the bus biasing resistors to be active. All jumper combinations are shown in Table 1. A termination resistor can be fitted on the receiver input by inserting RT. The value of the termination resistor should be equal to the characteristic impedance of the cable used. To activate the termination resistor, Jumper LK12 must be inserted. FULL DUPLEX, BUS BIASING AND TERMINATION RESISTORS ON RECEIVER AND TRANSMITTER Bus biasing resistors can be fitted on the transmitter output as well as on the receiver input. Resistors R3, R4, R2, and R11 and Jumpers LK11, LK13, LK7, and LK9 must be inserted for this configuration. A termination resistor can also be fitted on the transmitter output by inserting RT1. The value of the termination resistor should be equal to the characteristic impedance of the cable used. To activate the termination resistor, Jumper LK10 must be inserted. HALF DUPLEX WITH BUS BIASING AND TERMINATION To configure the evaluation board as half duplex, Receiver Input Pin A must be connected to Transmitter Output Pin Y and Receiver Input Pin B must be connected to Transmitter Output Pin Z. This is accomplished by inserting Jumper LK15 and Jumper LK16. In this configuration if biasing resistors are inserted, only the resistors on the receiver input, or on the transmitter output should be selected. This is achieved by either inserting resistors R3 and R4 and jumpers LK11 and LK13 (leaving LK7 and LK9 open), or by inserting resistors R2 and R11 and jumpers LK7 and LK9 (leaving LK11 and LK13 open). Similarly only the termination resistor on the receiver input or on the transmitter output should be selected (e.g. LK12 inserted, LK10 open). POWERING UP THE BUS SIDE The bus side can be powered using either the regulator built into the board or by using an external power source. Jumper LK1 allows the user to select between these two methods. By inserting Jumper LK1 into Position A, the board can be powered using an external power source. Inserting Jumper LK1 into Position B selects the built-in regulator to supply the bus side. Rev. A | Page 3 of 12 UG-210 Evaluation Board User Guide Table 1. Board Configurations and Jumper Settings Configuration Full Duplex Configuration Half-Duplex Configuration (A Connected to Y, B Connected to Z) No Biasing Resistors Bus Biasing Resistors on A/B only Bus Biasing Resistors on Y/Z only Bus Biasing Resistors on A/B and Y/Z (Full Duplex) No Termination Resistors Termination Resistor on A/B only Termination Resistor on Y/Z only Termination Resistors on A/B and Y/Z (Full Duplex) Powering the Bus Side Using the Regulator on the Board Powering the Bus Side Using an External Power Supply Using the Transformer on the Board Using the SMA Connector for RxD Using the Screw Terminal for RxD Using the SMA Connector for TxD Using the Screw Terminal for TxD RE High RE Low Using the Screw Terminal for RE DE High DE Low Using the Screw Terminal for DE Tie RE and DE Together (Note Only One Jumper Can Be Inserted, Either LK4 or LK6) Jumpers Fitted Jumpers Open LK 15, LK16 LK15, LK16 LK11, LK13 LK7, LK9 LK7, LK9, LK11, LK13 LK12 LK10 LK10, LK12 LK1 (Position B) LK1 (Position A) LK2 (Position A) LK3 (Position A) LK8 (Position A) LK8 (Position B) LK5 (Position B) LK5 (Position A) LK4 (Position A) LK4 (Position B) LK4 (Position C) LK6 (Position A) LK6 (Position B) LK6 (Position C) LK14 and (LK4 or LK6) Rev. A | Page 4 of 12 LK7, LK9, LK11, LK13 LK7, LK9 LK11, LK13 LK 15, LK16 LK10, LK12 LK10 LK12 LK 15, LK16 LK1 (Position A) LK1 (Position B) LK2 (Position C) LK3 (Position C) LK8 (Position B) LK8 (Position A) LK5 (Position A) LK5 (Position B) LK4 or LK6 Rev. A | Page 5 of 12 J8-4 J8-3 J8-2 J8-1 J1-1 J1-2 + C11 22uF VDD1 VDD1 J13 J3 R10 51r VDD1 B A Figure 2. ADM2482E/ADM2487E Evaluation Board Circuit Diagram B A VDD1 LK5 LK8 51r 51r VDD1 R5 R1 VDD1 C B A LK3 C B A LK2 C B A LK6 C B A LK4 VDD1 100nF C7 R9 R8 LK14 C6 C4 TXD RTS RE RXD 100nF GND1 D2 D1 C8 100nF 0 0 8 7 6 5 4 3 2 1 VDD1 TXD DE RE RXD 100nF VDD2 16 C9 SKD2 SKD1 GND2 NC Y Z B A 9 10 11 12 13 14 U1 15 GND2 ADM2482_87EBRWZ GND1 D2 D1 10uF 10V C10 TRANSCENTRE_POE30P 5 7 6 2 3 4 8 1 Y Z B A C5 100nF X555 X556 B A LK1 VDD2 VDD2 C3 VDD2 VDD2 GND2 100nF R11 RT1 RT 120r R3 820r 120r R2 R4 J2-2 J2-1 820r 820r 820r C2 10uF LK9 LK10 LK7 LK13 LK12 LK11 + T2 + LK15 0 C1 22uF LK16 R7 T1 51r R6 4 6 2 GND SD NR ERR OUT U2 ADP3330 IN 5 3 1 J4-6 J4-5 J4-4 J4-3 J4-2 J4-1 09479-001 U3 Evaluation Board User Guide UG-210 EVALUATION BOARD SCHEMATIC AND ARTWORK Evaluation Board User Guide 09479-003 UG-210 Figure 3. ADM2482E/ADM2487E Evaluation Board Silkscreen Rev. A | Page 6 of 12 UG-210 09479-004 Evaluation Board User Guide Figure 4. ADM2482E/ADM2487E Evaluation Board Component Side Rev. A | Page 7 of 12 Evaluation Board User Guide 09479-005 UG-210 Figure 5. ADM2482E/ADM2487E Evaluation Board Solder Side Rev. A | Page 8 of 12 Evaluation Board User Guide UG-210 ORDERING INFORMATION BILL OF MATERIALS Table 2. Qty 1 2 2 1 3 1 1 2 2 1 1 11 2 4 9 1 4 4 3 2 6 6 3 3 2 1 1 1 1 Reference Designator C1 C2, C10 C3, C8 C4 C5, C6, C7 C9 C11 J1, J2 J3, J13 J4 J8 LK1 to LK16 LK1, LK5 LK2 to LK4, LK6 LK7, LK9 to LK16 LK8 R1, R5, R6, R10 R2 to R4, R11 R7, R8, R9 RT, RT1 RE, RTS, RXD, TXD, D1, D2 T1, T2, A, B, Y, Z VDD1, VDD2, X556 X555, GND1, GND2 SKD1, SKD2 U1 U2 U3 Description Capacitor, Size 1210, 22 μF Capacitor, Size 1210, 10 μF Capacitor, Size 0805, 100 nF Capacitor, Size 0603, 100 nF Capacitor, Size 0603, 100 nF Capacitor, Size 0603, 100 nF Capacitor, CAP\TAJ_B, 22 μF CON\POWER SMB CON\POWER6 CON\POWER4 Header, 2 row, 36 + 36 way JUMPER_2, JUMPER_2_SWAP_AB JUMPER_3 Jumper, SIP-2P JUMPER_2 Resistor, 805, 51 Ω Resistor, R1/8W, 820 Ω Resistor, R1/2W_NARROW, 0 Ω Resistor, R1/8W, 120 Ω Test point Test point Test point Test point ZPD10, DO35_P, Schottky diode RS-485 transceiver, 16-lead SOIC_W LDO, 6-lead SOT-23 SMT power transformer Supplier/Part Number AVX 1210ZD226KAT2A AVX 1210ZC106KAT2A AVX 08055C104KAT2A Do not insert AVX CM105X7R104K16AT Do not insert AVX TAJB226K016R Camden CTB5000/2 Radiall R114426000 Wieland Electric 25.161.0653.0 Camden CTB5000/4 Harwin M20-9983646 Harwin M7566-05 Harwin M7566-05 Harwin M7566-05 Harwin M7566-05 Multicomp MC 0.1W 0805 5% 51R Multicomp MCCFR0W8J0821A20 Wire Link Multicomp MCCFR0W8J0121A20 Vero 20-313140 Vero 20-313138 Vero 20-313137 Vero 20-2137 Fairchild Semiconductor 1N5817 Analog Devices ADM2482EBRWZ/ADM2487EBRWZ Analog Devices ADP3330 Coilcraft GA3157-AL/Coilcraft DA2303-AL Only one header is required per board. RELATED LINKS Resource ADM2482E ADM2487E ADP3330 Description Product Page, 2.5 kV Signal Isolated, ESD Protected, Full/Half Duplex RS-485 Transceiver w/ Transformer Driver (16 Mbps) Product Page, 2.5 kV Signal Isolated, ESD Protected, Full/Half Duplex RS-485 Transceiver w/ Transformer Driver (500 kbps) Product Page, High Accuracy Ultralow I(Q), 200 mA, SOT-23, anyCAP® Low Dropout Regulator Rev. A | Page 9 of 12 UG-210 Evaluation Board User Guide NOTES Rev. A | Page 10 of 12 Evaluation Board User Guide UG-210 NOTES Rev. A | Page 11 of 12 UG-210 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. ©2010–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG09479-0-8/11(A) Rev. A | Page 12 of 12