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| Evaluation Board for the ADuM5401ADuM5404 Quad Isolators with isoPower EVAL-ADuM5401-ADuM5404 FEATURES Convenient connections for power through screw terminal blocks Add-on BNC connector for 50 signal sources On-board signal routing Support for signal wrap back Simple signal paths to reduce transmission line effects Pull-up and pull-down provided for control lines Support for isoPower Project area that supports surface-mount and through hole devices products and is a configurable board that can be adapted to many iCoupler products. SUPPORTED iCoupler MODELS ADuM130x ADuM131x ADuM140x ADuM141x ADuM240x ADuM330x ADuM340x ADuM540x ADuM520x ADuM5000 GENERAL DESCRIPTION The ADuM540x evaluation board can be used with iCoupler(R) isolation products in the wide body SOP16 package. The evaluation board supports the common pad positions for power, ground, and I/O pins found in nearly all of the iCoupler EVALUATION BOARD Figure 1. Rev. 0 Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards are supplied "as is" and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Analog Devices reserves the right to change devices or specifications at any time without notice. Trademarks and registered trademarks are the property of their respective owners. Evaluation boards are not authorized to be used in life support devices or systems. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. www.analog.com Tel: 781.329.4700 Fax: 781.461.3113 (c)2008 Analog Devices, Inc. All rights reserved. 07590-001 EVAL-ADuM5401-ADuM5404 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Supported iCoupler Models ............................................................ 1 Evaluation Board .............................................................................. 1 Revision History ............................................................................... 2 Evaluation Board Hardware ............................................................ 3 Pad Layout for the DUT .............................................................. 3 Terminals ....................................................................................... 3 Data I/O Connections ..................................................................5 Design Area ....................................................................................5 Evaluation Board Schematics and Layout ......................................6 Ordering Information .......................................................................8 Bill of Materials ..............................................................................8 Ordering Guide .............................................................................8 ESD Caution...................................................................................8 REVISION HISTORY 7/08--Revision 0: Initial Version Rev. 0 | Page 2 of 8 EVAL-ADuM5401-ADuM5404 EVALUATION BOARD HARDWARE PAD LAYOUT FOR THE DUT The evaluation board has a pad layout in U2 that accommodates SOP16 wide body devices as shown in Figure 2. Power and ground connections connect to capacitor pads for Side 1 and Side 2. U2 C6 U1 C9 C1 C2 C3 C4 C8 07590-003 C7 Figure 3. ADuM5000 Pad Layout Component U1 07590-002 Grounding Scheme The board consists of two separate ground and power systems. Each side of the DUT can be operated from an independent power and ground reference. This allows simulation of conditions similar to the target application. The board provides for board creepage and clearance typical of most 2.5 kV circuit boards. It is not recommended for use above 2.5 kV rms transient voltages. Figure 2. DUT Pad Layout Component U2 Three low inductance, surface-mount bypass capacitors are provided for each side. A 100 nF capacitor is installed on each side in Capacitor C2 and Capacitor C3. In addition, there are 10 F ceramic X7R capacitors, C1 on Side 1 and C4 on Side 2, that provide high frequency bypassing and ripple reduction. For further ripple reduction in isoPowerTM devices like the ADuM540x, tantalum capacitors are added to C10 as a 68 F value on Side 1 and to C5 as a 22 F value on Side 2. These large value ceramic and tantalum bypass capacitors are not necessary for non-isoPower devices. Many of the iCoupler devices have configuration pins that allow outputs to be disabled or default levels to be set. These pins are usually located at Pin 7 and Pin 10 in the wide body package. Pull-up 0 resistors on SM Pad R4 and and SM Pad R17 have been provided to pull these pins high. If desired, these pull-up resistors can be removed and pull-down resistors can be installed on R5 and R18. In addition to the U2 DUT space, an additional pad layout is provided at U1, specifically to accommodate another isoPower device, as shown in Figure 3. This is a power supply only device that can be used to provide secondary power for any iCoupler, in standalone mode or as a slave, to boost power to the ADuM540x or ADuM520x devices. The surface-mount resistor pads to control these functions are not populated. Pad layout for the ADuM5000 is provided in U1, but this part is not populated. As can be seen in Figure 3, the power and ground connections for this device are different from the rest of the iCoupler components. Bypass capacitor Pad C6 through Pad C9 are provided but not populated (0.1 F X7R ceramic capacitors are recommended). Pull-up, pull-down, and connecting resistor pads are provided (but not populated) to connect the ADuM5000 in master or slave mode, as well as to set the output voltage. EMI and EMC Measurements The signal path has been made as simple as possible while still providing flexibility. The board is not intended for detailed characterization of system noise, EMI, or EMC. It may be useful for initial bench work in these areas, but Analog Devices, Inc., does not guarantee that board results will be indicative of the final system performance in these areas. TERMINALS Side 1 Power Supply Inputs Power is supplied to the board via a set of terminal block connectors labeled IO_1C, as shown in Figure 4. Power is connected to the top terminal Pin 1, and ground is connected to the top terminal Pin 2. Provisions for adding in line inductors for noise isolation have been made with the inclusion of Z1 and Z2, which are 1206 size surface-mount components. These positions are populated with 0 resistors to connect power to the board. If isolation inductors are required, these components should be removed and replaced at your discretion. Rev. 0 | Page 3 of 8 EVAL-ADuM5401-ADuM5404 Figure 5. Side 2 Terminal Block Connector Figure 4. Side 1 Terminal Block Connector The power and ground from the screw terminal block are connected to the Side 1 power and ground pads of the DUT and provide power and ground to pull-up and pull-down resistors and terminations. Power is connected to the terminal block connector labeled IO_1D, as shown in Figure 5. Power is connected to the top Pin 1, and ground is connected to Pin 2. Provisions for adding in line inductors for noise isolation or for isolating the jacks from the on board power connections have been made with the inclusion of Z6 and Z7. These positions are populated with 0 resistors to connect power from the ADuM540x to the IO_1D terminal block. When standard iCoupler isolators are installed, the Z6 and Z7 pads should be populated with 0 resistors to connect the power jacks to the power pins of the DUT. Inductors can be installed if noise isolation is required. When isoPower devices are installed on the board, the power configuration required can vary greatly, depending on the demands of the application. With 0 resistors or inductors installed at Z6 and Z7, the power jacks can provide power from the isoPower device to an external device. With Z6 and Z7 open, IO_1D Pin 1 and Pin 2 become generalpurpose connections that can be wired into the project area with the through hole connections provided. Without Z6 and Z7 populated, these pins then become completely isolated from the ground and power connections on the board (see the complete schematic shown in Figure 7). Side 2 Power Supply Connections The Side 2 connections are different from those on Side 1. With standard iCoupler devices, these connections are power supply inputs for Side 2. However, with isoPower devices such as the ADuM540x, these same connections can be power outputs for off-board circuits. In addition, they can be configured as an independent power supply for the project area. 07590-004 Rev. 0 | Page 4 of 8 07590-005 EVAL-ADuM5401-ADuM5404 DATA I/O CONNECTIONS Side 1 Data I/O Signals can be provided to the board and routed to the required input pins through the IO_1C terminal block connector, as shown in Figure 4. Four channel inputs/outputs can be connected through IO_1C Pins 3 through Pin 6 to the respective A, B, C, and D channels of the ADuM540x. Signals from the IO_1C terminal block connector channels can also be routed to some of the other data lines through the JP1A and JP1B jumper blocks (these jumper blocks also correspond to BNC Channel A and Channel B, if you populate them). Each jumper block allows a channel signal from the terminal block IO_1C to be connected to additional data input lines by configuring the jumpers. The jumper blocks can also be used to wrap signals from an iCoupler output back to an input by using the JP1A or JP1B block to cross connect inputs and outputs. A common way to provide signals is with a function generator through 50 coax cables. The ADuM540x board has a layout position at IO_1A and IO_1B for adding two BNC connectors, but these are not provided with the board. You can purchase the coax cables (AMP #227699-2) and populate these BNC connectors. In addition, to have 50 terminations on the board for the added BNC connectors, a 50 through hole resistor must be added at the R1 and R2 positions. It is possible to route data outputs to this connector as well, but it is not recommended because proper termination is not possible for logic level signals, and improper termination can cause severe ringing on the output lines. Also part of the Side 1 I/O structure are the pull-up/pull-down load positions R7 through R14. Discrete through hole resistors and capacitors can be installed at these positions to simulate most loading conditions or to provide pull-ups for open collector outputs. DESIGN AREA The design area of the evaluation board is provided to allow bread-boarding of application components such as RS485 and CAN transceivers, ADC or DAC components with direct interconnects. The design area, as shown in Figure 6, accepts most surface-mount narrow and wide body components with 50 mil and 100 mil pitch, as well as narrow and wide body 300 mil DIP through hole devices. These surface-mount discrete components and jumper wires can be used to complete a wide variety of circuits. The design area has convenient connection points to the primary data path CHA to CHD of the iCoupler, as well as power connections for VISO and GNDISO. To allow signals from the design area to be routed to the IO_1D terminal block, you should remove the R23 0 through R26 0 resistors. Note that no ground plane is provided in the design area. VISO Z6 GNDISO DESIGN AREA Z7 CHA CHB CHC CHD CHA CHB CHC IO_1D Side 2 Data I/O Signals can be provided to the board and routed to the required input pins through the IO_1D terminal block connector, as shown in Figure 5. It consists of terminal block connections that operate like the Side 1 structures. The terminal block connections can also be used to wrap signals from an iCoupler output back to an input. In addition to the off-board I/O connections, each data channel is provided with through hole connections to the design area. R23 R24 R25 R26 1 CHD 8 VISO Figure 6. Design Area Rev. 0 | Page 5 of 8 07590-006 VISO Z6 GNDISO Z7 DESIGN AREA VISO GND1 GNDISO VDD1 C6 R22 U1 16 15 14 13 12 R16 CHA CHB CHC CHD CHA CHB CHC 11 10 9 C9 R15 VDD1 1 2 3 4 5 6 7 R3 8 Z1 EVAL-ADuM5401-ADuM5404 ADuM540x GND1 Z2 GND1 R21 C8 C7 R6 R10 U2 1 2 3 4 5 6 R14 7 8 VDD1 9 VISO VISO 10 VISO 11 14 13 12 R25 R26 15 C3 0.1F C4 10F C5 22F R23 R24 16 C10 68F C1 10F C2 0.1F CHD IO_1D 1 R9 TPA TPB TPC TPD R8 EVALUATION BOARD SCHEMATICS AND LAYOUT I/O_1A I/O_1B 07590-007 Figure 7. Schematic of ADuM540x Evaluation Board Rev. 0 | Page 6 of 8 IO_1C R7 1 ADuM540x 8 R13 R12 8 R11 R4 R17 R19 JP1A 2 R5 JP1B 1 2 1 R18 R20 7 8 7 R1 8 R2 EVAL-ADuM5401-ADuM5404 Figure 8. Evaluation Board Layout Rev. 0 | Page 7 of 8 07590-008 EVAL-ADuM5401-ADuM5404 ORDERING INFORMATION BILL OF MATERIALS Table 1. Qty 2 0 0 1 1 2 2 0 0 2 2 0 6 4 0 0 Reference Designator IO_1C, IO_1D U1 U2 C10 C5 C1, C4 C2, C3 C6, C7, C8, C9 IO_1A, IO_1B JP1A, JP1B P1, P2 R3, R6, R21, R22 R4, R17, R23 to R26 Z1, Z2, Z6, Z7 R5, R15, R16, R18 to R20 R1, R2, R7 to R14 Description CONN-PCB terminal ADuM5000; not populated Supported iCoupler Models SO16WB; not populated CAP TANT chip 68 F CAP TANT chip 22 F CAP CER X5R 10 F CAP CER X7R 0.1 F CAP CER SMD 0805; not populated CONN-PCB coax BNC; not populated CONN-PCB header, 8-pin double row Jumper RES chip SMD 0805; not populated RES chip SMD 1206; 0 RES chip SMD 1206; 0 RES chip SMD 1206; not populated RES SPACER_400; not populated Supplier/Part Number Weidmuller/999394 KEMET/T495X686K020AS AVX/TAJC226K020R Panasonic/ECJ-2FB0J106M Murata/GRM40X7RRR104K0 AMP/227699-2 SAMTEC/TSW-104-08-T-D VECTOR/K24A Panasonic/ERJ-8GEY0R00V Panasonic/ERJ-8GEY0R00V ORDERING GUIDE Model EVAL-ADuM540XEBZ1 1 2 ESD CAUTION Description Evaluation Board2 Z = RoHS Compliant Part. Integrated circuit not included; order separately. (c)2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07590-0-6/08(0) Rev. 0 | Page 8 of 8 |
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