EVAL-AD5683RSDZ

EVAL-AD5683R User Guide UG-641 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 AD5683R, Single, 16-Bit, Serial Voltage-Output DAC FEATURES GENERAL DESCRIPTION Full-featured evaluation board for the AD5683R On-board reference Various link options PC control in conjunction with Analog Devices System demonstration platform (SDP) PC software for control of DACs On-board ADC for voltage readback The Analog Devices, Inc., AD5683R evaluation board (EVALAD5683RSDZ) is designed to help customers quickly prototype new AD5683R circuits and reduce design time. The AD5683R operates from a single 2.7 V to 5.5 V supply. The part incorporates an internal 2.5 V on-board reference to give an output voltage span of 2.5 V or 5 V. The evaluation board interfaces to the USB port via the SDP board. Software is available with the evaluation board, which allows the user to easily program the AD5683R. PACKAGE CONTENTS AD5683R evaluation board AD5683R device CD that includes Self-installing software that allows users to control the board and exercise all functions of the device Electronic version of the AD5683R data sheet Electronic version of EVAL-AD5683R user guide This evaluation board requires the EVAL-SDP-CB1Z board. This is available on the Analog Devices website. Full data on the AD5683R may be found in the AD5683R data sheet available from Analog Devices and should be consulted in conjunction with this user guide when using the evaluation board. ADDITIONAL EQUIPMENT NEEDED PC control via a separately purchased system demonstration platform (SDP-B or SDP-S) 11957-001 EVALUATION BOARD PHOTOGRAPH Figure 1. Universal Evaluation Board Rev. 0 | Page 1 of 12 UG-641 EVAL-AD5683R User Guide TABLE OF CONTENTS Features .............................................................................................. 1  Power Supplies ...............................................................................4  Package Contents .............................................................................. 1  Link Options ..................................................................................4  Additional Equipment Needed ....................................................... 1  How to Use the Software ..................................................................5  General Description ......................................................................... 1  Running the Software ...................................................................5  Evaluation Board Photograph......................................................... 1  Software Operation .......................................................................6  Revision History ............................................................................... 2  Evaluation Board Schematics and Artwork ...................................7  Getting Started .................................................................................. 3  Ordering Information .................................................................... 10  Installing the Software ................................................................. 3  Components List ........................................................................ 10  Evaluation Board Hardware ............................................................ 4  REVISION HISTORY 1/14—Revision 0: Initial Version Rev. 0 | Page 2 of 12 EVAL-AD5683R User Guide UG-641 GETTING STARTED INSTALLING THE SOFTWARE 3. The EVAL-AD5683RSDZ evaluation kit includes self-installing software on CD. The software is compatible with Windows® XP (32-bit), Windows Vista (64-bit/32-bit), and Windows 7(64-bit/32-bit). 4. Install the software before connecting the SDP board to the USB port of the PC. This ensures that the SDP board is recognized when it connects to the PC. 1. 2. 5. Start the Windows® operating system and insert the CD. The installation software will open automatically. If it does not, run the setup.exe file from the CD. Rev. 0 | Page 3 of 12 After installation is completed, power-up the evaluation board as described in the Power Supplies section. Plug the EVAL-AD5683RSDZ into the SDP board and the SDP board into the PC using the USB cable included in the box. When the software detects the evaluation board, proceed through any dialog boxes that appear to finalize the installation. UG-641 EVAL-AD5683R User Guide EVALUATION BOARD HARDWARE POWER SUPPLIES LINK OPTIONS The AD5683R evaluation board can be powered either from the SDP or externally by the VPOS_EXT and AGND connector. A number of link and switch options are incorporated in the evaluation board and should be set for the required operating setup before using the board. The functions of these link options are described in detail in Table 3. Table 2 describes the positions of the different links to control the evaluation board by PC, via the USB port and SDP board in single-supply mode. Both AGND and DGND inputs are provided on the board. The AGND and DGND planes are connected at one location close to the AD5683R. It is recommended not to connect AGND and DGND elsewhere in the system to avoid ground loop problems. All supplies are decoupled to ground with 10 µF tantalum and 0.1 µF ceramic capacitors. Table 1. Power Supply Connectors Connector No. J2-1 J2-2 Voltage Analog positive power supply, V_EXT AGND Table 2. Link Options Setup for SDP Control (Default) Link No. A11 LINK A1 Options A Disconnected A Table 3. Link Functions Link No. A1 LINK A11 Option This link selects the DAC digital voltage source: Position A selects an external reference source via the SMB input EXT_REF. Position B selects the REF192 external reference. Position C selects the ADR431 external reference. Connect only if the board of the part is controlled through the PMOD connector and the SDP is not connected. This link selects the DAC analog voltage source: Position A VDD is powered @ 3.3 V. Position B VDD is powered from unregulated USB supply. Position C VDD is powered from an external supply voltage (V_EXT). Rev. 0 | Page 4 of 12 EVAL-AD5683R User Guide UG-641 HOW TO USE THE SOFTWARE RUNNING THE SOFTWARE 4. 1. Click Start > All Programs > Analog Devices > AD563R > AD5683R Evaluation Software. (To uninstall the program, click Start > Control Panel > Add or Remove Programs > AD5683R Evaluation Software.) 2. If the SDP board is not connected to the USB port when the software is launched, a connectivity error is displayed (see Figure 2). Simply connect the evaluation board to the USB port of the PC, wait a few seconds, click Rescan, and follow the instructions. 11957-004 To run the program, do the following: If the SDP board is connected, the system development platform will connect for a brief period. Figure 4. System Develop Platform Wait Window 5. The main window of the AD5683R evaluation software then opens, as shown in Figure 5. 11957-002 Note that simulation mode is available and the software can be tested without the use of the evaluation boards. Figure 2. Pop-Up Window Error If the SDP board is not connected to the evaluation boards, a message box appears as shown in Figure 3. Check the connection between the SDP and EVAL-AD5683RSDZ boards and run the program again. The software will now run in simulation mode enabling us to see how the AD5683R interface functions without the use of an evaluation board. 11957-003 3. Figure 3. Error Message Rev. 0 | Page 5 of 12 UG-641 EVAL-AD5683R User Guide SOFTWARE OPERATION To select the AD5683R from the Analog Devices menu, click Start > All Programs > Analog Devices > AD5683R > AD5683R SDP Evaluation Software. The AD5683R control register options are available by selecting the drop-down menus and clicking Write to Control Register. Consult the AD5683R data sheet for details. Set LDAC and RESET to high or low by clicking the corresponding check boxes. This command is executed immediately. 11957-005 The AD5683R main window opens, as shown in Figure 5. The data programmed into the input register is displayed. You can update the command bits and the data bits by clicking the appropriate button under each area. To select a command with which to program the part, select the appropriate button. For example, to program DAC output with full scale, write the full-scale value into the INPUT VALUE (HEX) (0xFFFF) text box and click Write to Input and DAC register. Figure 5. AD5683R Evaluation Board Main Window Rev. 0 | Page 6 of 12 Rev. 0 | Page 7 of 12 VPOS C4 1µF J2-2 J2-1 2 3 Figure 6. Schematic of AD5683R Evaluation Circuitry 7 2 3 2 4 4 GND COMP TRIM 6 5 6 + +5V REF192 O/P VOUT U8 ADR431BRZ +VIN U3 GND SLEEP REF192 EXT_REF VIN 4 5 C8 0.1µF NC OUT REFERENCE GND EN IN C5 1µF 1 5V C7 10µF ±20% ADR431 C B A1 A EXT LABELS: V_EXT C B A11 A 3V3 LABELS: VREF VPOS LINK V_IO RESET LDAC SDIN/SDA SCLK/A0 SYNC/SCL V_IO PLEASE LABEL TP AS PER THE NET IT IS CONNECTED TO TP3 TP1 TP2 TP9 TP6 CONNECT ONLY IF THE SDP IS NOT CONNECTED VPOS DIGITAL SUPPLY 3 4 8 6 7 2 VLOGIC RESET LDAC SDIN SCLK SYNC DGND J5-12 J5-8 J5-10 J5-7 J5-9 J5-11 J5-6 J5-5 J5-2 J5-4 J5-1 J5-3 +5V SCLK SCL SDA SDIN 9 VREF GND 5 U1 AD5683R 1 VDD VPOS VREF nanoDAC+ VOUT C9 10µF ±20% 10 + VPOS C10 0.1µF TP4 C2 10µF ±20% PLEASE LABEL TP AS PER THE NET IT IS CONNECTED TO V_IO RESET SYNC LDAC VPOS PMOD CONNECTOR C6 DNP ANALOG SUPPLY R12 U5 ADP121 DNP +5V + VREF VOUT C1 0.1µF EVAL-AD5683R User Guide UG-641 EVALUATION BOARD SCHEMATICS AND ARTWORK 11957-007 + Rev. 0 | Page 8 of 12 DGND 10µF C22 BEAD L2 1.6Ω R21 C34 4.7µF + C21 0.1µF +5V LDAC Figure 7. Schematic of SDP Connector J1 BMODE1 RESET_IN UART_TX UART_RX GND GND NC NC SDP EEPROM_A0 NC STANDARD NC NC CONNECTOR NC NC NC NC GND GND NC NC NC NC TMR_C* TMR_D TIMERS TMR_B TMR_A GPIO6 GPIO7 GND GND GENERAL GPIO5 GPIO4 INPUT/OUTPUT GPIO3 GPIO2 GPIO0 GPIO1 SCL_0 SCL_1 I2C SDA_0 SDA_1 GND GND SPI_CLK SPI_SEL1/SPI_SS SPI_MISO SPI_SEL_C SPI SPI_MOSI SPI_SEL_B SPI_SEL_A GND GND SPORT_INT SPORT_TSCLK SPORT_DT3* SPORT_DT0 SPORT_DT2* SPORT SPORT_TFS SPORT_DT1 SPORT_RFS SPORT_DR1 SPORT_DR0 SPORT_DR2* SPORT_RSCLK SPORT_DR3* GND GND PAR_CLK PAR_FS1 PAR_FS2 PAR_FS3 PAR_A0 PAR_A1 PAR_A2 PAR_A3 GND GND PAR_INT PAR_CS PAR_WR PAR_RD PAR_D0 PAR_D1 PARALLEL PAR_D2 PAR_D3 PORT PAR_D4 PAR_D5 GND GND PAR_D6 PAR_D7 PAR_D8 PAR_D9 PAR_D10 PAR_D11 PAR_D12 PAR_D13 GND PAR_D14 PAR_D15 GND *PAR_D16 PAR_D17* *PAR_D18 PAR_D19* *PAR_D20 PAR_D21** *PAR_D22 PAR_D23 GND GND VIO(+3.3V) USB_VBUS GND GND GND GND NC NC *NC ON BLACKFIN SDP NC VIN 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 VIN: USE THIS PIN TO POWER THE SDP REQUIRES 5V 200mA 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 SCLK SDO SDIN SYNC RESET R1 100kΩ R6 0Ω TP5 8 VCC 7 WP 6 SCL 5 SDA 24LC32 1 A0 2 A1 3 A2 4 VSS U6 V_IO SCL SDA BOARD ID EEPROM (24LC32) MUST BE ON I2C BUS 0 V_IO SDA 0Ω 0Ω 0Ω R13 R7 R9 0Ω R11 SDIN 0Ω R10 V_IO SCLK 0Ω 0Ω R5 R4 SCL SYNC AD5683R -> AD5693R SDIN/SDA SCLK/A0 SYNC/SCL MAIN I2C BUS (CONNECTED TO BLACKFIN TWI; PULL UP RESISTORS NOT REQUIRED) R2 100kΩ R3 DNP VIO: USE TO SET IO VOLTAGE MAX DRAW 20mA V_IO R18 100kΩ R8 100kΩ V_IO V_IO BMODE1: PULL UP WITH A 10kΩ RESISTOR TO SET SDP TO BOOT FROM A SPI FLASH ON THE DAUGHTER BOARD. UG-641 EVAL-AD5683R User Guide 11957-006 UG-641 11957-008 EVAL-AD5683R User Guide 11957-009 Figure 8. Component Placement Drawing 11957-010 Figure 9. Component Side PCB Drawing Figure 10. Solder Side PCB Drawing Rev. 0 | Page 9 of 12 UG-641 EVAL-AD5683R User Guide ORDERING INFORMATION COMPONENTS LIST Table 4. Qty 1 1 1 1 1 1 2 2 1 1 3 1 2 3 1 1 7 4 1 4 Reference U1 U3 U5 U6 U8 LINK A1, A11 VOUT, EXT_REF J1 J2 C1, C8, C10 C21 C4, C5 C2, C7, C9 C22 L2 TP1, TP2, TP3, TP4, TP5, TP6, TP9 R1, R2, R8, R18 R21 R4, R6, R7, R10 Description AD5683R 2.5 V reference 3.3 V regulator 32K I2C serial EEPROM Ultralow noise XFET voltage references 2-pin link 3-pin link SMB jack 50 Ω 120-way female connector 2-pin terminal block 0.1 µF, 16 V X7R ceramic capacitor 0.1 µF, 50 V X7R ceramic capacitor 1 µF, 16 V X7R ceramic capacitor 10 µF, 10 V, X5R, 0603 10uF, 6.3 V, tantalum Inductor Testpoint 100 kΩ SMD resistor 1.6 Ω SMD resistor 0 Ω resistor Rev. 0 | Page 10 of 12 Supplier/Part Number AD5683R REF192 ADP121 FEC 1331330 ADR431BRZ FEC 1022249 FEC 148535 FEC 1206013 FEC 1324660 FEC 151789 FEC 1216538 FEC 1759122 FEC 1658870 FEC 1853538 FEC 1190107 FEC 9526862 FEC 8731128 FEC 9330402 FEC 1627674 FEC 9331662 EVAL-AD5683R User Guide UG-641 NOTES Rev. 0 | Page 11 of 12 UG-641 EVAL-AD5683R 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. ©2014 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG11957-0-1/14(0) Rev. 0 | Page 12 of 12