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General Description

The MAX5318 evaluation kit (EV kit) provides a proven

design to evaluate the MAX5318 18-bit high-accuracy volt-

age output DAC with digital gain and offset control. 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 MAX5318 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 syn-

thesizer (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 synchro-

nization output is also provided that indicates when a new

cycle starts. In addition, all waveforms can be synchro-

nized to an external signal.

The EV kit comes with an 18-bit MAX5318GTG+ precision

DAC installed.

Features

S On-Board Direct Digital Synthesis (Xilinx

Spartan

-3A FPGA)

On-Board Waveform Memory (1M x 24-Bit SRAM)

On-Board +4.096V Ultra-High-Precision Voltage

Reference (MAX6126)

SMA Connectors for Waveform Synchronization

and DAC Output

Proven High-Performance 18-Bit DAC PCB Layout

Stand-Alone and GUI Operation Modes

Eight Diagnostic LEDs

Five Pushbuttons For Functionality Tests

High-Speed SPI Interface

High-Speed USB 2.0 USB-PC Connection

(Cable Included)

Windows XP-, Windows Vista-, and Windows

7-Compatible Software

RoHS Compliant

Fully Assembled and Tested

MAXUSB2XILINXMB INTERFACE BOARD

SDRAM

SYNC_OUT

RESET SW4

SW5

RECONFIGURE SW3

SYNC_IN

SPI FLASH

XILINX SPARTAN 3 FPGA

SCLK

MICROBLAZE

DIRECT DIGITAL SYNTHESIZER (DDS)

SPI CONTROLLER

GPIO

OTHER LOGIC AND PERIPHERALS

USB FIFO

USB

TO PC

OUT

PUSH BUTTONS

LEDs

POWER SUPPLIES

DIN

DOUT

CONTROL

LEVEL

TRANSLATORS

SPI FLASH

MAX5318

+4.096V

MAX6126

18-BIT DAC

MAX5318 EV KIT BOARD

POWER SUPPLY CONNECTORSSRAM SRAM

MAX5318 Evaluation System

Evaluates: MAX5318

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

System Diagram

19-6231; Rev 0; 3/12

Ordering Information appears at end of data sheet.

Windows, Windows XP, and Windows Vista are registered

trademarks of Microsoft Corp.

Xilinx and Spartan are registered trademarks of Xilinx Inc.

Summary of content (13 pages)

PAGE 1
MAX5318 Evaluation System Evaluates: MAX5318 General Description The MAX5318 evaluation kit (EV kit) provides a proven design to evaluate the MAX5318 18-bit high-accuracy voltage output DAC with digital gain and offset control. 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.
PAGE 2
MAX5318 Evaluation System Evaluates: MAX5318 Component Lists MAX5318 EV System PART QTY DESCRIPTION MAX5318EVKIT# 1 MAX5318 EV kit MAXUSB2XILINXMB# 1 Serial interface board MAX5318 EV Kit DESIGNATION QTY C1, C5, C14, C15, C16, C19, C21, C23, C30–C37 16 C2, C4, C6, C8, C17, C20, C27, C28, C29, C63 C3, C9, C10, C11, C38–C40 C7, C60 C12, C22, C42, C44, C46, C48, C50, C52, C55, C56, C58, C62, C65 C13, C41, C43, C45, C47, C49, C51, C53, C54, C57, C59, C61, C64 C18 DESIGNATION QTY JU3, JU4, JU6
PAGE 3
MAX5318 Evaluation System Evaluates: MAX5318 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 MAX5318 when contacting these component suppliers. MAX5318 EV Kit Files FILE DESCRIPTION INSTALL.EXE Installs the EV kit files on your computer MAX5318EVKIT.EXE Application program CDM20600.EXE Installs the USB device driver UNINSTALL.
PAGE 4
MAX5318 Evaluation System Evaluates: MAX5318 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.
PAGE 5
MAX5318 Evaluation System Evaluates: MAX5318 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 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.
PAGE 6
MAX5318 Evaluation System Evaluates: MAX5318 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 MAX5318 DAC on the right side. The MAX5318 EV kit can operate in two modes: standalone and GUI. When DAC Data Source is set to DDS, the MAX5318 DIN register is driven by the DDS signal generator.
PAGE 7
MAX5318 Evaluation System Evaluates: MAX5318 Set the SYNC_In_Out_Width register bit 29 to bit 0 to control the SYNC_OUT pulse width: SYNC_OUT pulse width = SYNC_In_Out_Width[29:0] x 10ns When SYNC_In_Out_Width[29:0] = 0, the SYNC_OUT pulse width = 10ns. 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.
PAGE 8
MAX5318 Evaluation System Evaluates: MAX5318 Table 3. MAXUSB2XILINXMB Interface Board Jumper Descriptions (JU1–JU13) (continued) JUMPER SHUNT POSITION 1-2 2-3 JUTCK Pin 1 only* JUTDI DESCRIPTION Do not use. Do not use. Do not use. 2-3 Do not use. SHUNT POSITION JUTDO USB bridge does not drive J2 or J3. 1-2 Pin 1 only* JUMPER 1-2 Do not use. 2-3 Do not use. Pin 1 only* JUTMS USB bridge does not drive J2 or J3. DESCRIPTION USB bridge does not drive J2 or J3. 1-2 Do not use.
PAGE 9
MAX5318 Evaluation System Evaluates: MAX5318 Figure 3.
PAGE 10
MAX5318 Evaluation System Evaluates: MAX5318 1.0” Figure 4. MAX5318 EV Kit Component Placement Guide— Component Side 1.0” Figure 5. MAX5318 EV Kit PCB Layout—Component Side 1.0” Figure 6.
PAGE 11
MAX5318 Evaluation System Evaluates: MAX5318 1.0” Figure 7. MAX5318 EV Kit PCB Layout—Power Layer 3 Maxim Integrated 1.0” Figure 8.
PAGE 12
MAX5318 Evaluation System Evaluates: MAX5318 Ordering Information PART TYPE MAX5318EVSYS# EV System #Denotes RoHS compliant.
PAGE 13
MAX5318 Evaluation System Evaluates: MAX5318 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. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed.