Evaluation Board User Guide UG-327 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 Evaluating the AD5443, AD5446, and AD5453 Current Output/Serial Input DACs FUNCTIONAL BLOCK DIAGRAM Full-featured evaluation board for the AD5443, AD5446, and AD5453 Graphic user interface software for board control and data analysis Connector to EVAL-SDP-CB1Z system demonstration platform board Various power supply options EVAL-SDP-CB1Z ADR01 REFERENCE SYNC SYNC SCLK SCLK SDI VREF AD5443 SDO VREF SYNC APPLICATIONS IOUT2 SDO USB SCLK AD5446 IOUT1 VOUT1 SDI Automatic test equipment Instrumentation Digitally controlled calibration Digital waveform generation IOUT1 VOUT2 SDI IOUT2 SDO VREF SYNC SCLK AD5453 SDI IOUT1 VOUT GND EV-AD5443/46/53SDZ Figure 1. GENERAL DESCRIPTION The AD5443, AD5446,and AD5453 are CMOS 12-bit, 14-bit, and 14-bit, respectively, current output, digital-to-analog converters (DACs). The AD5443 operates from a 3 V to 5.5 V power supply, while the AD5446 and AD5453 operate from a single 2.5 V to 5.5 V power supply. These devices are well suited for portable battery-powered and applications such as waveform generation and analog processing. Because of the CMOS submicron manufacturing process, these parts offer excellent 4-quadrant multiplication characteristics of 10 MHz for the AD5443 and up to 12 MHz for the AD5446 and AD5453 DACs. These DACs use a double-buffered, 3-wire serial interface that is compatible with SPI, QSPITM, MICROWIRETM, and most DSP interface standards. On power-up, the internal shift register and latches are filled with 0s, and the DAC output is at zero scale. In addition for the AD5443 and AD5446, a serial data out pin (SDO) allows for daisy chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. B | Page 1 of 12 The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier. The AD5443 and AD5446 are available in small 10-lead MSOP packages, while the AD5453 is available in small 8-lead TSOT, MSOP packages, also comes in 8-lead LFCSP. The EV-AD5443/46/53SDZ board is used in conjunction with the EVAL-SDP-CB1Z system demonstration platform (SDP) board available from Analog Devices, Inc., which is purchased separately from the evaluation board. The USB-to-SPI communication to the DAC is completed using this Blackfin(R)based demonstration board. 10226-001 FEATURES UG-327 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Using the Evaluation Board Software .............................................4 Applications ....................................................................................... 1 Example 1 .......................................................................................5 Functional Block Diagram .............................................................. 1 Example 2 .......................................................................................5 General Description ......................................................................... 1 Example 3 .......................................................................................5 Revision History ............................................................................... 2 Evaluation Board Schematics and Artwork ...................................6 Evaluation Board Software .............................................................. 3 Schematics ......................................................................................6 Installing the Software ................................................................. 3 Evaluation Board Layout ........................................................... 10 Running the Software .................................................................. 3 Related Links ............................................................................... 11 REVISION HISTORY 5/2016--Rev. A to Rev. B Changes to Figure 1 .......................................................................... 1 6/2013--Rev. 0 to Rev. A Changed EVAL-AD5443SDZ/EVAL-AD5446SDZ/ EVAL-AD5453SDZ to EV-AD5443/46/53SDZ .............. Universal 4/2012--Revision 0: Initial Version Rev. B | Page 2 of 12 Evaluation Board User Guide UG-327 10226-002 EVALUATION BOARD SOFTWARE Figure 2. Device Manager Showing the SDP Board Connected INSTALLING THE SOFTWARE RUNNING THE SOFTWARE The EV-AD5443/46/53SDZ evaluation kit includes the software and drivers on CD. To install the software, follow these steps: To run the evaluation board program, do the following: 2. 3. 4. 5. Install the software before connecting the SDP board to the USB port of the PC. Start the Windows(R) operating system and insert the EV-AD5443/46/53SDZ evaluation kit CD. Download the EV-AD5443/46/53SDZ LabVIEWTM software. The correct driver, SDPDriversNET, for the SDP board should download automatically after LabVIEW is downloaded, supporting both 32-bit and 64-bit systems. However, if the drivers do not download automatically, the driver executable file can also be found in the Program Files/Analog Devices folder. Follow the on-screen prompts to install it. After installation of the software and drivers is complete, plug the EV-AD5443/46/53SDZ 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 (Found New Hardware Wizard/Install the Software Automatically and so on). 2. Rev. B | Page 3 of 12 Click Start/All Programs/Analog Devices/ EV-AD5443/46/53SDZ. If the SDP board is not connected to the USB port when the software is launched, a connectivity error displays (see Figure 3). Simply connect the evaluation board to the USB port of the PC, wait a few seconds, click Rescan, and follow the instructions. 10226-003 1. 1. Figure 3. Connectivity Error (See Step 2) UG-327 Evaluation Board User Guide USING THE EVALUATION BOARD SOFTWARE 10226-006 10226-004 Once the software is launched, the main window pops up (see Figure 4). Figure 6. AD5446 Evaluation Software Window 10226-007 10226-005 Figure 4. Main Window Figure 7. AD5453 Evaluation Software Window Figure 5. AD5443 Evaluation Software Window Rev. B | Page 4 of 12 Evaluation Board User Guide UG-327 EXAMPLE 1 Select the AD5453 part from the main window. Check the Clock Data To Shift Register on Rising Edge box, and click the OK button. The AD5453 Evaluation Software Window should appear. The LED indicator with the Rising Edge Active label should be lit indicating the actual functionality mode (see Figure 5). Enter Data 0x2000 (half scale) in the Input Data control and click the Write to DAC button. Data is clocked on the rising edge instead of the falling edge (by default). There is no loss of data; therefore, the output shows the expected -5 V value. The only change is the way the data is clocked. VOUT = -VREF x D 8,192 = -10 x = -5 V 2n 16,384 EXAMPLE 2 Select the AD5446 part from the main window and click the OK button. The AD5446 Evaluation Software Window should appear. Enter Data 0x3FFF (full scale) in the Input Data control and click the Write to DAC button. The output shows -10 V, and because this write was the first action on the DAC after powering up, the data on the SDO pin is not taken into account because the data is not given any information. VOUT D 16,383 = -VREF x n = -10 x = -10 V 2 16,384 Write Data 0x1000 (quarter scale) to the DAC. The output changes its voltage from -10 V to -2.5 V, and the previous data written to the part will appear on the SDO pin (in this example, -10 V). VOUT = -VREF x D 16,383 = -10 x = -10 V n 2 16,384 To finish evaluating the part, push the STOP button. To disable daisy-chain mode, check the Disable Daisy-chain box in the Main Window after launching the application and before clicking the OK button. The LED indicator with the Daisy-chain Disabled label is lit, indicating the functionality mode. EXAMPLE 3 Select the AD5443 part from the Main Window and click the OK button. The AD5443 Evaluation Software Window should appear. Enter Data 0x800 (half scale) in the Input Data control and select Load And Update. The output shows the expected -5 V value. VOUT = -VREF x 2,048 D = -10 x = -5 V n 2 4,096 Select Clear DAC Output To Zero Scale to get a voltage value of 0 V on the output. To put the part in three-quarter scale, write 0xBFD in the Input Data control and select Load And Update. VOUT = -VREF x 3,069 D = -10 x = -7.5 V 2n 4,096 To verify the data in the DAC register is correct, select Initiate Readback and the indicator window beside this option shows -7.5 V. Rev. B | Page 5 of 12 GND D VDD 3.3V GND 1 D 3 VDD 5 3.3V 2 Figure 8. EV-AD5443/46/53SDZ Schematic, SDP Connector Rev. B | Page 6 of 12 SDO_AD5446 SDO_AD5443 USB_VBUS /SYNC2 /SYNC1 R6 VIN: Use this pin to power the SDP requires 5V 200mA S1 IN ADG702BRJZ S S2 4 IN ADG701BRJZ S SDO selector 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 R7 J1 RESET_IN BMODE1 UART_RX UART_TX 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_A TMR_B GPIO6 GPIO7 GND GND GENERAL GPIO4 GPIO5 INPUT/OUTPUT GPIO2 GPIO3 GPIO0 GPIO1 SCL_1 SCL_0 I2C SDA_1 SDA_0 GND GND SPI_SEL1/SPI_SS SPI_CLK SPI_SEL_C SPI_MISO SPI SPI_SEL_B SPI_MOSI GND SPI_SEL_A SPORT_INT GND SPORT_DT3 * SPORT_TSCLK SPORT_DT2 * SPORT_DT0 SPORT SPORT_DT1 SPORT_TFS SPORT_DR1 SPORT_RFS 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_RD PAR_WR PAR_D1 PAR_D0 PARALLEL PAR_D3 PAR_D2 PORT PAR_D5 PAR_D4 GND GND PAR_D7 PAR_D6 PAR_D9 PAR_D8 PAR_D11 PAR_D10 PAR_D13 PAR_D12 PAR_D14 GND GND PAR_D15 * PAR_D16 PAR_D17 * * * PAR_D19 PAR_D18 * PAR_D20 PAR_D21 * * PAR_D22 PAR_D23 * GND GND USB_VBUS VIO(+3.3V) 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 R8 R2 100K 100K DNP SCLK SDIN /SYNC 8 VCC 7 WP 6 SCL 5 SDA Board ID EEPROM (24LC32) must be on I2C bus 0, /SYNC /SYNC1 SDO_AD5443 /SYNC /SYNC2 SDO_AD5443 /SYNC1 SCLK SDO_AD5446 /SYNC2 Testpoints SDIN SDO_AD5446 SCLK Main I2C bus (Connected to blackfin TWI - Pull up resistors not required) 24LC32 1 2 A0 3 A1 4 A2 VSS U1 VIO: USE to set IO voltage max draw 20mA 3.3V R1 R3 3.3V BMODE1: Pull up with a 10K resistor to set SDP to boot from a SPI FLASH on the daughter board SDIN UG-327 Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK SCHEMATICS 10226-015 7 SDO_AD5443 Rev. B | Page 7 of 12 Figure 9. EV-AD5443/46/53SDZ Schematic, AD5443 DAC VSS J6-1 J6-2 J6-3 6 /SYNC2 VDD 5 SDIN SDO/LDAC SYNC SDIN VREF GND IOUT2 IOUT1 RFB VDD 9 3 2 1 10 8 10uF C22 + VDD C16 0.1uF 5 3 TRIM GND +VIN 2 VOUT 4 VREF R5 ADR01BKSZ_U7 VREF 10uF C15 0.1uF C23 + J4 VREF 0.1uF C24 VSS VDD U8 3 2 AD8065 AR C17 4.7pF LK3 + - V+ 7 4 V- C20 C19 10uF C21 C18 6 0.1uF 10uF 0.1uF + SCLK AD5426_ AD5432_ AD5443 4 SCLK U6 + 3.3V VOUT2 J5 VOUT2 Evaluation Board User Guide UG-327 10226-016 Rev. B | Page 8 of 12 SDO_AD5446 /SYNC1 SDIN 7 6 5 4 VREF GND IOUT2 IOUT1 RFB VDD AD5444/AD5446 SDO SYNC SDIN SCLK 9 3 2 1 10 8 + C9 10uF VREF R4 VSS VDD U5 3 2 AD8065AR C14 4.7pF + - 4 VV+ 7 C12 C11 10uF C13 C10 6 0.1uF 10uF 0.1uF + SCLK U4 + C8 0.1uF 3.3V VOUT1 J3 VOUT1 UG-327 Evaluation Board User Guide Figure 10. EV-AD5443/46/53SDZ Schematic, AD5446 DAC 10226-017 Rev. B | Page 9 of 12 6 5 4 SCLK SDIN /SYNC VREF GND IOUT1 RFB VDD AD5450_1_2_ 3 SYNC SDIN U2 2 7 8 1 3 + VREF VDD + - VSS U3 3 2 AD8065AR C3 1.8pF V+ 7 4 V- C6 C5 10uF C7 C4 6 0.1uF 10uF 0.1uF + SCLK + C2 10uF C1 0.1uF 3.3V VOUT_ J2 VOUT Evaluation Board User Guide UG-327 Figure 11. EV-AD5443/46/53SDZ Schematic, AD5453 DAC 10226-018 UG-327 Evaluation Board User Guide 10226-012 EVALUATION BOARD LAYOUT 10226-013 Figure 12. EV-AD5443/46/53SDZ Silkscreen Figure 13. EV-AD5443/46/53SDZ Component Side Rev. B | Page 10 of 12 UG-327 10226-014 Evaluation Board User Guide Figure 14. EV-AD5443/46/53SDZ Solder Side RELATED LINKS Resource AD5443 AD5446 AD5453 ADR01 AD8065 EVAL-SDP-CB1Z Description Product Page, AD5443 High Bandwidth CMOS 12-Bit Serial Interface Multiplying D/A Converter Product Page, AD5446 14-Bit High Bandwidth Multiplying DAC with Serial Interface Product Page, AD5453 14-Bit High Bandwidth Multiplying DACs with Serial Interface Product Page, ADR01 Ultracompact, Precision 10.0 V Voltage Reference Product Page, AD8065 High Performance, 145 MHz FastFETTM Op Amp Product Page, System Demonstration Platform-Blackfin Rev. B | Page 11 of 12 UG-327 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. 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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. (c)2012-2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG10226-0-5/16(B) Rev. B | Page 12 of 12