19-6230; Rev 0; 3/12 MAX5316 Evaluation System Evaluates: MAX5316 General Description The MAX5316 evaluation kit (EV kit) provides a proven design to evaluate the MAX5316 16-bit high-accuracy voltage output DAC. The EV kit also includes Windows XP®-, Windows Vista®-, and Windows®7-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC. The MAX5316 evaluation system (EV system) consists of the EV kit and a companion MAXUSB2XILINXMB serial interface board. The MAXUSB2XILINXMB interface board allows a PC to control the SPI interface and GPIOs using its USB port. Order the EV system for a complete PC-based evaluation of the IC. The EV system includes an on-board direct digital synthesizer (DDS) that generates precision waveforms (sine, triangle, rising ramp, falling ramp, square, and arbitrary). The DDS clock can be selected from 375kHz to 10kHz. Waveform amplitude and offset can be controlled by the DDS or the internal controls of the IC. Arbitrary waveforms are defined by a simple CSV file that can easily be created from Excel or many other software programs. A synchronization output is also provided to indicate when a new cycle starts. In addition, all waveforms can be synchronized to an external signal. The EV kit comes with a 16-bit MAX5316GTG+ precision DAC installed. Features SOn-Board Direct Digital Synthesis (Xilinx® Spartan®-3A FPGA) SOn-Board Waveform Memory (1M x 24-Bit SRAM) SOn-Board +4.096V Ultra-High-Precision Voltage Reference (MAX6126) SSMA Connectors for Waveform Synchronization and DAC Output SProven High-Performance 16-Bit DAC PCB Layout SStand-Alone and GUI Operation Modes SEight Diagnostic LEDs SFive Pushbuttons for Functionality Tests SHigh-Speed SPI Interface SHigh-Speed USB 2.0 USB-PC Connection (Cable Included) SWindows XP-, Windows Vista-, and Windows 7-Compatible Software SRoHS Compliant SFully Assembled and Tested Ordering Information appears at end of data sheet. System Diagram MAX5316 EV KIT BOARD MAXUSB2XILINXMB INTERFACE BOARD SRAM SPI FLASH SRAM XILINX SPARTAN 3 FPGA +4.096V MAX6126 CS SCLK MICROBLAZE DIRECT DIGITAL SYNTHESIZER (DDS) SDRAM POWER-SUPPLY CONNECTORS DIN DOUT LEVEL TRANSLATORS CONTROL SPI CONTROLLER OUT GPIO SYNC_OUT SYNC_IN OTHER LOGIC AND PERIPHERALS SW5 RESET SW4 RECONFIGURE SW3 PUSH-BUTTONS MAX5316 16-BIT DAC SPI FLASH LEDs USB FIFO POWER SUPPLIES USB TO PC Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corp. Xilinx and Spartan are registered trademarks of Xilinx Inc. __________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX5316 Evaluation System Evaluates: MAX5316 Component Lists MAX5316 EV System PART QTY DESCRIPTION MAX5316EVKIT# 1 MAX5316 EV kit MAXUSB2XILINXMB# 1 Serial interface board MAX5316 EV Kit DESIGNATION QTY DESIGNATION QTY JU1, JU2 2 2-pin headers JU3, JU4, JU6 3 3-pin headers JU5 1 5-pin header R1, R5, R9–R30 24 22I Q5% resistors (0402) R2 1 100kI Q5% resistor (0603) R3 1 10kI Q5% resistor (0603) R4 1 1kI Q5% resistor (0603) R6 1 0I Q5% resistor (0603) R7 1 12.4kI Q1% resistor (0603) 1 10kI Q1% resistor (0603) 2 100pF Q5%, 50V C0G ceramic capacitors (0402) Murata GRM1555C1H101J R8 TP1, TP2, TP3, TP8 4 Orange multipurpose test points C12, C22, C42, C44, C46, C48, C50, C52, C55, C56, C58, C62, C65 TP4, TP5, TP10 3 Red multipurpose test points 13 180pF Q5%, 50V C0G ceramic capacitors (0402) Murata GRM1555C1H181J TP6, TP9, TP11, TP25, TP26, TP27 6 Black multipurpose test points TP7 1 C13, C41, C43, C45, C47, C49, C51, C53, C54, C57, C59, C61, C64 White multipurpose test point 1000pF Q5%, 50V C0G ceramic capacitors (0402) Murata GRM155R71H102J TP12–TP24 13 Orange miniature test points 13 U1 1 16-bit DAC (24 TQFN-EP*) Maxim MAX5316GTG+ 1 4.7FF Q10%, 6.3V X5R ceramic capacitor (0603) Murata GRM188R60J475K U2 1 +4.096V ultra-high-precision voltage reference (8 SO) Maxim MAX6126AASA41+ U4 1 SPI serial flash (8 SO8W) C24, C25, C26 3 10FF Q10%, 10V X7R ceramic capacitors (0805) Murata GRM21BR71A106K U5 1 D1 1 30V, 500mA Schottky diode (SOD-123) Negative output LDO (5 SOT23) Maxim MAX1735EUK30+ U6, U7, U8 3 2-bit level translators (8 SSOP) FB1–FB8 8 600I Q25% 500mA ferrite beads (0603) TDK MMZ1608B601C U9 1 8-bit level translator (24 TSSOP) 1 50I SMA connector, vertical mount U10 1 300mA LDO (6 SOT23) Maxim MAX1983EUT+ — 6 Shunts 1 Self-mating hermaphroditic strip (2x20) — 1 PCB: MAX5316 EVALUATION KIT C1, C5, C14, C15, C16, C19, C21, C23, C30–C37 16 C2, C4, C6, C8, C17, C20, C27, C28, C29, C63 10 C3, C9, C10, C11, C38, C39, C40 C7, C60 C18 J1 J2 7 DESCRIPTION 0.1FF Q10%, 16V X7R ceramic capacitors (0402) Murata GRM155R71C104K 0.01FF Q10%, 16V X7R ceramic capacitors (0402) Murata GRM155R71C103K 1FF Q10%, 16V X7R ceramic capacitors (0603) Murata GRM188R71C105K DESCRIPTION *EP = Exposed pad. __________________________________________________________________ Maxim Integrated Products 2 MAX5316 Evaluation System Evaluates: MAX5316 Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America Inc. 770-436-1300 www.murata-northamerica.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX5316 when contacting these component suppliers. MAX5316 EV Kit Files FILE DESCRIPTION INSTALL.EXE Installs the EV kit files on your computer MAX5316EVKIT.EXE Application program CDM20600.EXE Installs the USB device driver UNINSTALL.EXE Uninstalls the EV kit software USB_Driver_Help_200.PDF USB driver installation help file Quick Start 6) Connect -5V DC power supply to EV kit between TP7 (-5V) and TP6 (AGND). Keep power off. • MAX5316 EV kit Required Equipment 7) Connect oscilloscope probe 1 to EV kit SMA connector J1 or test point TP1 (OUT). • MAXUSB2XILINXMB interface board (USB cable included) • Windows XP, Windows Vista, or Windows 7 PC with a spare USB port 8) Turn on the power supplies for the EV kit board first. Then turn on the power supply for the MAXUSB2XILINXMB board. • Power supply, +5V DC at 600mA • Power supply, -5V DC at 100mA • Oscilloscope Note: The EV system has two operation modes: standalone mode and GUI mode. See the Detailed Description of Hardware section for operation mode details. Stand-Alone Mode Procedure 1) Verify that the jumpers on the MAXUSB2XILINXMB interface board are in their default positions, as shown in Table 3. 9) Observe that the DAC outputs a sine wave of 1kHz, amplitude range is 0 to 4.096V. 10)Press and release SW3 to select between 8 sine waveforms with different frequencies. A single LED from LED4–LED11 is turned on, indicating a different frequency as shown in Table 1. 11)Press and release SW4 to select between 8 sine waveforms with different frequencies. A single LED from LED4–LED11 is turned off, indicating a different frequency as shown in Table 2. 2) Verify that the jumpers on the EV kit board are in their default positions, as shown in Table 4. 12)Press SW5 to toggle TC/SB logic level. By default, TC/SB = high and the DDS output is set to two’s complement format. If TC/SB = low, the sine waveform is distorted. 3) Connect the EV kit board to the MAXUSB2XILINXMB interface board. 13) Press SW1 (RESET) to reset the MAXUSB2XILINXMB board and the EV kit board. 4) Connect +5V DC power supply to MAXUSB2XILINXMB between TP1 (+5V) and TP2 (GND). Keep power off. 5) Connect +5V DC power supply to EV kit between TP5 (+5V) and TP6 (AGND). Keep power off. GUI Mode Procedure Note 1: In the GUI mode operation, the stand-alone mode functions as described in the previous section. The user can exercise more features of the EV kit using __________________________________________________________________ Maxim Integrated Products 3 MAX5316 Evaluation System Evaluates: MAX5316 Table 1. LED4–LED11 Relationship With DAC Output Frequency Controlled by SW3 SINGLE LED TURNED ON PINC VALUE DAC OUTPUT SINE WAVEFORM FREQUENCY (Hz) LED4 83,886 999.999046 LED5 83,968 1000.976563 LED6 38,858 463.223457 LED7 419 4.994869 LED8 838,861 10000.002384 LED9 838,912 10000.610351 LED10 65,536 781.250000 LED11 256 3.051758 Table 2. LED4–LED11 Relationship With DAC Output Frequency Controlled by SW4 SINGLE LED TURNED OFF PINC VALUE DAC OUTPUT SINE WAVEFORM FREQUENCY (Hz) LED4 1,048,576 12500.000000 LED5 262144 3125.000000 LED6 65,536 781.250000 LED7 16,384 195.312500 LED8 4096 48.828125 LED9 1024 12.207031 LED10 256 3.051758 LED11 64 0.762939 the GUI mode. Each time when the operation mode is to be changed, a user needs to press and release SW1 (RESET) on the MAXUSB2XILINXMB board to reset the EV system and then follow the procedures for each operation mode. 3) Verify that the jumpers on the MAXUSB2XILINXMB interface board are in their default positions, as shown in Table 3. Note 2: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. 5) Connect the EV kit board to the MAXUSB2XILINXMB interface board. 1)Visit www.maxim-ic.com/evkitsoftware to download the latest version of the EV kit software, 5316Rxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file. 2) Install the EV kit software and USB driver on your computer by running the INSTALL.EXE program inside the temporary folder. The program files are copied to your PC and icons are created in the Windows Start | Programs menu. During software installation, some versions of Windows may show a warning message indicating that this software is from an unknown publisher. This is not an error condition and it is safe to proceed with installation. Administrator privileges are required to install the USB device driver on Windows. 4) Verify that the jumpers on the EV kit board are in their default positions, as shown in Table 4. 6)Connect +5V DC power supply to the MAXUSB2XILINXMB interface board between TP1 (+5V) and TP2 (GND). Keep power off. 7) Connect +5V DC power supply to EV kit between TP5 (+5V) and TP6 (AGND). Keep power off. 8) Connect -5V DC power supply to EV kit between TP7 (-5V) and TP6 (AGND). Keep power off. 9) Connect oscilloscope probe 1 to EV kit SMA connector J1 or test point TP1 (OUT). 10) Connect the oscilloscope probe 2 to EV kit test point TP20 (CS). 11) Connect the oscilloscope probe 3 to EV kit test point TP19 (SCLK). 12) Connect the oscilloscope probe 4 to EV kit test point TP18 (DIN). __________________________________________________________________ Maxim Integrated Products 4 MAX5316 Evaluation System Evaluates: MAX5316 13)Turn on the power supplies for the EV kit board first. Then turn on the power supply for the MAXUSB2XILINXMB interface board. 18)Drag the Frequency track bar up and observe the output Frequency increases. 14) Observe that the DAC outputs a sine wave of 1kHz, amplitude range is 0 to 4.096V. 15)Connect the USB cable from the PC to the MAXUSB2XILINX interface board. A Windows message appears when connecting the MAXUSB2XILINX board to the PC for the first time. Each version of Windows has a slightly different message. If you see a Windows message stating ready to use, then proceed to the next step. Otherwise, open the USB_Driver_Help_200.PDF document in the Windows Start | Programs menu to verify the USB driver was installed successfully. 16)Start the EV kit software by opening its icon in the Windows Start | Programs menu. The EV kit software main window appears, as shown in Figure 2. Within 5s, the software should automatically connect to the hardware; verify that MAX5316EVKIT Hardware Connected appears in the bottom-left status bar. 17) Observe the IC OUT waveform is a 1kHz sine wave. Figure 1. MAX5316 EV Kit Jumper Locations Figure 2. MAX5316 EV Kit Software Main Window (Block Diagram Tab) __________________________________________________________________ Maxim Integrated Products 5 MAX5316 Evaluation System Evaluates: MAX5316 Detailed Description of Software Detailed Description of Hardware The main window of the evaluation software (shown in Figure 1) displays the MAXUSB2XILINXMB DDS signal generator on the left side of the window, and the MAX5316 DAC on the right side. The MAX5316 EV kit can operate in two modes: standalone and GUI. When DAC Data Source is set to DDS, the IC’s DIN register is driven by the DDS signal generator. The output frequency is controlled by the Frequency track bar, or by typing the output frequency value into its edit field and pressing enter. The sample update rate is controlled by the Update Frequency drop-down list. The DDS output waveform frequency is calculated as follows: fOUT = fUPDATE x PINC 2 24 where fUPDATE is the DDS update frequency, PINC is the DDS phase increment. The DDS is implemented with a 24-bit phase accumulator. The gain and offset of the DDS output waveform can be adjusted by the Gain and Offset track bars in the DDS section of the GUI. The shape of the waveform is selected by the Waveform group box. The SPI clock frequency is selectable under the Advanced menu. Selecting a slower SPI clock frequency may limit the available update frequency. When DAC Data Source is set to SPI/Direct, the IC’s DIN register is driven by the controls on the right side of the window. Write the DIN register by dragging its track bar, or by typing numbers into the DIN edit field. When the MAXUSB2XILINXMB is powered up and connected to the computer’s USB port, the software automatically connects and configures the IC to enable data output. This can be prevented by unchecking the Advanced menu item’s Connect Automatically and Enable DOUT After Connecting. Arbitrary Waveform Generation The DDS can accept user-defined arbitrary waveform data stored in a comma-separated values (CSV) file. There are 1,048,576 samples stored in the file, representing one cycle of the arbitrary waveform. The sample data are 18-bit decimal values with 0 representing zero scale and 262,143 representing full scale. Click the File menu item’s Load Arbitrary Waveform… to download the waveform to the DDS and stream to the DAC. A staircase waveform is stored in the system at power-up. The stand-alone mode is for quick IC functionality demonstration purpose only. In this mode, the MAXUSB2XILINXMB interface board generates one of 16 predefined digital signals using the DDS implemented on the FPGA. Press and release SW3 to select between eight sine waveforms with different frequencies. A single LED from LED4–LED11 is turned on, indicating a different frequency as shown in Table 1. Press and release SW4 to select between eight sine waveforms with different frequencies. A single LED from LED4–LED11 is turned off, indicating a different frequency, as shown in Table 2. In the stand-alone mode, the DAC is updated at 200kHz, the SPI clock speed is set at 10MHz. The GUI mode is for a complete feature exercise of the IC through a PC. The user can explore many different application cases (e.g., DAC update frequencies, DAC output waveforms, DAC register settings, and DAC interface speed selections, etc). The EV kit provides a proven layout for the 16-bit highprecision voltage output DAC. An on-board +4.096V voltage reference (MAX6126) is provided. Contact Maxim for other high-precision voltage references if reference voltages other than +4.096V are required. SYNC_IN and SYNC_OUT Signals There is an SMA connector (J5) labeled INPUT and another SMA connector (J4) labeled OUTPUT on the MAXUSB2XILINXMB interface board. The INPUT signal is called SYNC_IN and the OUTPUT signal is called SYNC_OUT, respectively. The SYNC_IN signal is applied to the Schmitt-trigger input and the Schmitt-trigger output is applied to the FPGA DDS module. SYNC_IN is used to implement a simple “crash lock” for the DDS signal generator. At the rising edge of the SYNC_IN clock, the DDS resets itself and the DDS phase accumulator is reset to the POFF value written by the GUI (default to 0). The SYNC_OUT signal shows when the generated waveform starts a new cycle. Set the SYNC_In_Out_Width register bit 31 to 1 to enable the SYNC_IN signal. Set the bit to 0 to disable the SYNC_IN signal. __________________________________________________________________ Maxim Integrated Products 6 MAX5316 Evaluation System Evaluates: MAX5316 Set the SYNC_In_Out_Width register bit 30 to 1 to enable the SYNC_OUT signal. Set the bit to 0 to disable the SYNC_OUT signal. CPU Reset Button (SW2): Press and release this button to reset the embedded Microblaze microcontroller and the interface board. Set the SYNC_In_Out_Width register bit 29 to bit 0 to control the SYNC_OUT pulse width: Sinusoid Frequency-Select Button (SW3): Press and release this button to select between eight sine waveforms with different frequencies. A single LED from LED4-LED11 is turned on, indicating a different frequency as shown in Table 1. SYNC_OUT pulse width = SYNC_In_Out_Width[29:0] x 10ns When SYNC_In_Out_Width[29:0] = 0, SYNC_OUT, pulse width = 10ns. Pushbuttons on the MAXUSB2XILINXMB Interface Board Sinusoid Frequency-Select Button (SW4): Press and release this button to select between eight sine waveforms with different frequencies. A single LED from LED4-LED11 is turned off, indicating a different frequency as shown in Table 2. FPGA Reconfigure Button (SW1): Press and release this button to reconfigure the FPGA and the whole interface board. TC/SB IC Pin Logic-Level Select Button (SW5): Press and release this button to toggle the TC/SB pin logic. After the FPGA reconfiguration or the embedded MicroBlaze microcontroller reset, the TC/SB pin is logic-high and the DDS output is set to two’s-complement format. If TC/SB = low, the sine waveform is distorted. There are five pushbuttons (SW1–SW5) on the MAXUSB2XILINXMB interface board. Their functions are described as follows: Table 3. MAXUSB2XILINXMB Interface Board Jumper Descriptions (JU1–JU13) JUMPER SHUNT POSITION 1-2 IOVDD = 1.8V from U9. Do not use. 1-3* IOVDD = 3.3V from U7. 1-4 IOVDD = external user-supplied IOVDD from test point TPEXTIOVDD. Note restriction 1.1V < IOVDD < 3.6V. Do not use. JU1 JU2 JU3 JU4 JU5 JU6 DESCRIPTION Pin 1 only* FPGA mode signal M0 = 1. 1-2 FPGA mode signal M0 = 0. Do not use. Pin 1 only FPGA mode signal M1 = 1. Do not use. 1-2* FPGA mode signal M1 = 0. Pin 1 only FPGA mode signal M2 = 1. Do not use. 1-2* FPGA mode signal M2 = 0. Pin 1 only* FPGA VS2 = 1. 1-2 FPGA VS2 = 0. Do not use. Pin 1 only* FPGA VS1 = 1. 1-2 FPGA VS1 = 0. Do not use. JUMPER JU7 JU8 SHUNT POSITION Pin 1 only* FPGA VS0 = 1. 1-2 FPGA VS0 = 0. Do not use. 1-2* HOLD1 is connected to ground. 2-3 HOLD2 is connected to ground. U7 powers the 3.3V supply rail. 1-2* JU9 Open 1-2* JU10 JU11 Measure the MAXUSB2XILINXMB 3.3V supply current by putting a current meter in series with the jumper. U8 powers the 0.9V supply rail. Open Measure the MAXUSB2XILINXMB 0.9V supply current by putting a current meter in series with the jumper. 1-2* U10 powers the 1.2V supply rail. Open Measure the MAXUSB2XILINXMB 1.2V supply current by putting a current meter in series with the jumper. 1-2* JU12 DESCRIPTION Open U9 powers the 1.8V supply rail. Measure the MAXUSB2XILINXMB 1.8V supply current by putting a current meter in series with the jumper. __________________________________________________________________ Maxim Integrated Products 7 MAX5316 Evaluation System Evaluates: MAX5316 Table 3. MAXUSB2XILINXMB Interface Board Jumper Descriptions (JU1–JU13) (continued) JUMPER SHUNT POSITION 1-2* JU13 2-3 JUTCK DESCRIPTION Power U7–U10 from external usersupplied +5V DC supply (from test point TP1). JUTDI Do not use. 2-3 Do not use. SHUNT POSITION JUTDO Do not use. 2-3 Do not use. Do not use. 2-3 Do not use. USB bridge does not drive J2 or J3. 1-2 Do not use. 2-3 Do not use. Pin 1 only* USB bridge does not drive J2 or J3. USB bridge does not drive J2 or J3. 1-2 Pin 1 only* JUTMS DESCRIPTION 1-2 Pin 1 only* Power U7–U10 from the USB (for FPGA configurations with sufficiently low power). Do not use. 1-2 Pin 1 only* JUMPER USB bridge does not drive J2 or J3. *Default position. Table 4. EV Kit Jumper Descriptions (JU1–JU6) JUMPER SHUNT POSITION 1-2* JU1 Pin 1 only JU2 1-2* Pin 1 only JUMPER SHUNT POSITION DESCRIPTION AVDD is connected to TP5 (+5V). 1-2 VDDIO is connected to 1.8V power supply. AVDD is connected to external supply on TP4. 1-3* VDDIO is connected to 3.3V power supply. 1-4 VDDIO is connected to 5V power supply. 1-5 VDDIO is connected to external supply on TP10. RFB is connected to OUT. JU5 RFB is disconnected from OUT. 1-2 AVSS is connected to analog ground. 2-3* AVSS is connected to on-board -1.25V reference. 1-2* REF is connected to on-board +4.096V reference. 2-3 REF is connected to external reference on TP8. JU3 JU4, JU6 DESCRIPTION *Default position. __________________________________________________________________ Maxim Integrated Products 8 MAX5316 Evaluation System Evaluates: MAX5316 Figure 3. MAX5316 EV Kit Schematic __________________________________________________________________ Maxim Integrated Products 9 MAX5316 Evaluation System Evaluates: MAX5316 1.0’’ Figure 4. MAX5316 EV Kit Component Placement Guide— Component Side 1.0’’ Figure 5. MAX5316 EV Kit PCB Layout—Component Side 1.0’’ Figure 6. MAX5316 EV Kit PCB Layout—Ground Layer 2 _________________________________________________________________ Maxim Integrated Products 10 MAX5316 Evaluation System Evaluates: MAX5316 1.0’’ Figure 7. MAX5316 EV Kit PCB Layout—Power Layer 3 1.0’’ Figure 8. MAX5316 EV Kit PCB Layout—Solder Side _________________________________________________________________ Maxim Integrated Products 11 MAX5316 Evaluation System Evaluates: MAX5316 Ordering Information PART TYPE MAX5316EVSYS# EV System #Denotes RoHS compliant. _________________________________________________________________ Maxim Integrated Products 12 MAX5316 Evaluation System Evaluates: MAX5316 Revision History REVISION NUMBER REVISION DATE 0 3/12 DESCRIPTION Initial release PAGES CHANGED — Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2012 Maxim Integrated Products 13 Maxim is a registered trademark of Maxim Integrated Products, Inc.