MAX5116EVKIT+

19-4280; Rev 0; 9/08 MAX5116 Evaluation Kit The MAX5116 evaluation kit (EV kit) provides a proven design to evaluate the MAX5116 nonvolatile, quad, 8bit DAC with 2-wire serial interface. The EV kit also includes Windows® 2000/XP/Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX5116. The MAX5116 EV kit printed-circuit board (PCB) comes with the MAX5116EEE+ installed. The MAX5116 EV kit can also be used to evaluate the MAX5109. Contact the factory for free samples of the MAX5109EEE+ device. Features o Power-On Recall from Nonvolatile Registers o 2.7V to 5.25V Operation o Configurable Device Address o On-Board USB Interface Circuit for I2C-Compatible Signals o USB-PC Connection (Cable Included) o USB Powered o PCB Pads for User-Supplied I2C-Compatible Signals o Proven PCB Layout Ordering Information PART TYPE MAX5116EVKIT+ EV Kit +Denotes lead-free and RoHS compliant. o Evaluates the MAX5116EEE+ and MAX5109EEE+ 16-Pin QSOP o Windows 2000/XP/Vista (32-Bit)-Compatible Software o Fully Assembled and Tested o Lead-Free and RoHS Compliant Windows and Windows Vista are registered trademarks of Microsoft Corp. Component List DESIGNATION C1, C12, C14, C33, C37 C2, C3 C4 C5–C10, C17, C18, C19, C22, C24, C25, C27–C32, C36 QTY DESCRIPTION 5 10µF ±20%, 16V X5R ceramic capacitors (1206) Murata GRM31CR61C106M 2 22pF ±5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H220J 1 19 DESIGNATION QTY JU2–JU8, JU10, JU12 DESCRIPTION 9 3-pin headers L1 1 Ferrite bead R1, R2 2 27Ω ±5% resistors (0603) R3 1 1.5kΩ ±5% resistor (0603) 0.033µF ±10%, 16V X5R ceramic capacitor (0603) Taiyo Yuden EMK107BJ333KA R4 1 470Ω ±5% resistor (0603) 0.1µF ±10%, 16V X7R ceramic capacitors (0603) TDK C1608X7R1C104K R5 1 2.2kΩ ±5% resistor (0603) R6 1 10kΩ ±5% resistor (0603) R10 1 169kΩ ±1% resistor (0603) R11 1 100kΩ ±1% resistor (0603) R12–R16, R19, R20, R23, R24 0 Not installed, resistors—short (PC trace) (0603) R17, R18, R21, R22 4 2.4kΩ ±5% resistors (0603) C11, C13, C23, C26, C41, C42, C43 7 1µF ±10%, 16V X5R ceramic capacitors (0603) TDK C1608X5R1C105K C15, C16 2 10pF ±5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H100J U1 1 Nonvolatile, quad, 8-bit DAC with 2-wire serial interface (16 QSOP) Maxim MAX5116EEE+ C20, C21, C34, C35, C38, C39, C40 0 Not installed, ceramic capacitors (0603) U2 1 Adjustable output LDO regulator (5 SC70) Maxim MAX8512EXK+T J1 1 USB series type-B right-angle PCmount receptacle U3 1 LDO regulator (5 SC70) Maxim MAX8511EXK25+T JU1, JU9, JU11 3 4-pin headers ________________________________________________________________ Maxim Integrated Products 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. 1 Evaluates: MAX5116/MAX5109 General Description Evaluates: MAX5116/MAX5109 MAX5116 Evaluation Kit Component List (continued) DESIGNATION QTY U4 1 UART-to-USB converter (32 TQFP) FTDI FT232BL Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com Taiyo Yuden 800-348-2496 www.t-yuden.com 1 93C46 type 3-wire EEPROM (8 SO) Atmel AT93C46A-10SU-2.7 TDK Corp. 847-803-6100 www.component.tdk.com U6 1 Microcontroller (68 QFN-EP*) Maxim MAXQ2000-RAX+ U7, U8 2 Bidirectional level translators (8 TDFN) Maxim MAX3394EETA+ U9, U10 2 2.5V voltage references (8 SO) Maxim MAX6126BASA25+ Y1 1 Y2 1 Y3 U5 DESCRIPTION Component Suppliers PHONE WEBSITE Note: Indicate that you are using the MAX5116 or MAX5109 when contacting these component suppliers. MAX5116 EV Kit Files FILE DESCRIPTION 16MHz crystal INSTALL.EXE Installs the EV kit files on your computer 6MHz crystal MAX5116.EXE Application program 0 Not installed FTDIBUS.INF USB device driver file — 1 USB high-speed A-to-B cables, 5ft (1.5m) — 12 Shunts — 1 *EP = Exposed pad. UNINST.INI Uninstalls the EV kit software USB_Driver_Help.PDF USB driver installation help file PCB: MAX5116 Evaluation Kit+ Quick Start Recommended Equipment Before beginning, the following equipment is needed: • MAX5116 EV kit (USB cable included) • • Voltmeter A user-supplied Windows 2000/XP/Vista-compatible PC with a spare USB port Note: 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 Procedure The MAX5116 EV Kit is fully assembled and tested. Follow the steps below to verify board operation: 1) Visit www.maxim-ic.com/evkitsoftware to download the latest version of the EV kit software, 5116Rxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file. 2) Install the EV kit software on your computer by running the INSTALL.EXE program inside the temporary folder. The program files are copied and icons are created in the Windows Start | Programs menu. 2 SUPPLIER 3) Verify that all jumpers (JU1–JU12) are in their default positions, as shown in Table 1. 4) Connect the USB cable from the PC to the EV kit board. A Building Driver Database window pops up in addition to a New Hardware Found message when installing the USB driver for the first time. If you do not see a window that is similar to the one described above after 30s, remove the USB cable from the board and reconnect it. Administrator privileges are required to install the USB device driver on Windows 2000/XP/Vista. Refer to the USB_Driver_Help.PDF document included with the software if you have any problems during this step. 5) Follow the directions of the Add New Hardware Wizard to install the USB device driver. Choose the Search for the best driver for your device option. Specify the location of the device driver to be C:\Program Files\MAX5116 (default installation directory) using the Browse button. During device driver installation, Windows might show a warning message indicating that the device driver Maxim uses does not contain a digital signature. This is not an error condition and it is safe to proceed with installation. 6) Start the MAX5116 EV kit software by opening its icon in the Start | Programs menu. The EV kit software main window appears, as shown in Figure 1. _______________________________________________________________________________________ MAX5116 Evaluation Kit 9) Use the voltmeter to verify that the voltage on the OUT0 pad is approximately 2.5V. Table 1. MAX5116 EV Kit Jumper Descriptions (JU1–JU12) JUMPER SHUNT POSITION 1-2 JU1 JU2 JU3 JU4 JU5–JU8 JU9 JU10 JU11 JU12 DESCRIPTION Connects the VDD to VUSB (5V) 1-3* Connects the VDD to VCC (3.3V) 1-4 Connect external power supply to the VDD pad 1-2* MUTE signal connected to on-board microcontroller 2-3 Connect external MUTE signal to the on-board MUTE pad 1-2* MAX5116 SCL signal connected to on-board microcontroller 2-3 Connect external SCL signal to the on-board SCL pad 1-2* MAX5116 SDA signal connected to on-board microcontroller 2-3 Connect external SDA signal to the on-board SDA pad 1-2* Connects the address pin to VDD 2-3 Connects the address pin to GND 1-2 Connects REFH (REFH0**) to VDD 1-3* Connects REFH (REFH0**) to the on-board MAX6126 voltage reference 1-4 Connect external voltage reference to the REFH (REFH0**) pad 1-2* Connects REFL (REFL0**) to GND 2-3 Connect external voltage reference to the REFL (REFL0**) pad 1-2 Connects REFH1 to VDD when evaluating the MAX5109 1-3 Connects REFH1 to the on-board MAX6126 voltage reference when evaluating the MAX5109 1-4* 1) Disconnects the N.C. pin when evaluating the MAX5116 2) Connect user-supplied voltage reference to the N.C. (REFH1**) pad when evaluating the MAX5109. 1-2 Connects REFL1 to GND when evaluating the MAX5109 2-3* 1) Connects the OUT pin to the OUT (REFL1**) pad when evaluating the MAX5116 2) Connect user-supplied voltage reference to the OUT (REFL1**) pad when evaluating the MAX5109. *Default position. **Refers to the MAX5109. _______________________________________________________________________________________ 3 Evaluates: MAX5116/MAX5109 7) Wait approximately 5s for the program to automatically detect the slave address (0x5E) of the MAX5116 in the Address drop-down list. 8) Drag the DAC0 track bar in the Volatile Register group box all the way to the right. Evaluates: MAX5116/MAX5109 MAX5116 Evaluation Kit Figure 1. MAX5116 EV Kit Software Main Window Detailed Description of Software To start the MAX5116 EV kit software, double-click the MAX5116 EV kit icon that is created during installation. The GUI main window appears, as shown in Figure 1. The DAC group box located at the left of the window controls the output-voltage settings for the DACs. Mute and power-down functions are in the Mute/PowerDown group box located in the middle section. The Status group box at the right displays the voltage values of the DACs. The I2C Interface group box at the top allows the user to transfer I2C commands by entering the commands in the edit boxes. 4 By default, the MAX5116 is selected in the Device dropdown list. Select MAX5109 in the Device drop-down list when evaluating the MAX5109 using the MAX5116 EV kit. The I2C slave address of the MAX5116 depends on the jumper settings of JU5–JU8. The Address drop-down list automatically detects the MAX5116’s I 2 C slave address when the GUI software starts. When the EV kit is shipped, the default I2C slave address is 0x5E. If the jumper settings of JU5–JU8 change, press the Auto Detect Address button to automatically detect the new I2C slave address of the MAX5116. _______________________________________________________________________________________ MAX5116 Evaluation Kit Status In the Status group box, press the Read button to read the values from all the volatile and nonvolatile registers. Values from the volatile and nonvolatile DAC registers are displayed in the Volatile DAC Register and NonVolatile DAC Register group boxes. Values from the volatile and nonvolatile mute/power-down registers are displayed in the Volatile Mute/Power-Down Register and Non-Volatile Mute/Power-Down Register group boxes. Check the Auto Read checkbox at the top of the Status group box to automatically read the current values from all registers. In the Volatile Registers group box, DAC0–DAC3 track bars are used to change the voltage values in the volatile DAC register of the DACs. The adjacent labels at the right of the track bars display the equivalent output-voltage values of the DACs. Use the All DAC track bar to send the “Write All VREG” operation that configures DAC0–DAC3 all at the same time. In the Nonvolatile Registers group box, use the DAC0–DAC3 track bars to change the values in the nonvolatile register of the DACs. Similarly, in the Volatile and Nonvolatile Registers group box, use the DAC0–DAC3 track bars to change the values in both of the volatile and nonvolatile registers. Press the buttons in the Transfer DAC NVREG to VREG group box to transfer values from the nonvolatile DAC registers to volatile DAC registers. Mute/Power-Down The Mute/Power-Down group box has the mute and power down controls for the DACs. The Mute DAC_ buttons are used to mute the DACs. The Power-down DAC_ buttons are used to set the DACs in powerdown mode. In the Volatile Register group box, each button corresponds to a bit in the volatile mute/power-down register. Press the button to toggle the bit. In the Nonvolatile Register group box, each button corresponds to a bit in the nonvolatile mute/power-down register. Press the applicable button to toggle the bit. Pressing the buttons in the Volatile and Nonvolatile Register group box toggles the bits in both volatile and nonvolatile registers. Press the NVREG >> VREG button at the bottom of the Mute/Power-Down group box to transfer values from the nonvolatile mute/power-down register to volatile register. Press the Mute All (/MUTE) button to toggle the signal on the MUTE pin of the MAX5116. I2C Interface In the I2C Interface group box, the Read/Write Status group box displays the last command and data that are sent or received from the MAX5116. The Read/Write Command group box allows the user to manually enter the I2C read/write command and data in the edit boxes and sends them to the MAX5116 by pressing the Send Command button. Detailed Description of Hardware The MAX5116 EV kit board provides a proven layout for evaluating the MAX5116 and MAX5109 ICs. The EV kit comes with the MAX5116EEE+ installed. The MAX5116 EV kit can also be used to evaluate the MAX5109. Contact the factory for free samples of the MAX5109EEE+ device. I2C Address Configuration The combinations of shunt positions for jumpers JU5–JU8 determine the I 2 C slave address of the MAX5116 EV kit. Refer to the MAX5116 IC data sheet for appropriate settings. Voltage Reference By default, the on-board MAX6126 2.5V external reference is connected to the REFH (REFH0**) pin of the MAX5116, and the REFL (REFL0**) is connected to ground. Place the shunt of JU9 to the 1-2 position to connect the VDD to the REFH (REFH0**) pin. To use an external voltage reference, place the shunts of JU9 to the 1-4 position and the shunts of JU8 to the 2-3 position. Attach the high- and low-voltage references to the REFH (REFH0**) and REFL (REFL0**) pads. Adjust the REFH (REFH0**) and REFL (REFL0**) values in the program. When evaluating the MAX5109, a second pair of voltage references (REFH1 and REFL1) is needed. The jumper settings for the REFH1 and REFL1 are similar to the settings for the REFH (REFH0**) and REFL (REFL0**), as previously mentioned. **Refers to the MAX5109. _______________________________________________________________________________________ 5 Evaluates: MAX5116/MAX5109 DAC In the DAC group box, the user can set the outputvoltage values for the DACs. Measure the actual reference voltage on the REFH and REFL pins of the MAX5116 and enter the values into the corresponding REFH_ and REFL_ edit boxes. Those values are used to calculate the expected output-voltage values of the DACs. Evaluates: MAX5116/MAX5109 MAX5116 Evaluation Kit User-Supplied Power Supply Optimal Measurement By default, the MAX5116 EV kit is powered by USB. To apply a user-supplied power supply, place the shunt of JU1 to the 1-4 position, and connect a 2.7V to 5.25V power supply to the VDD pad. To have the optimal measurements of the DAC output voltages, use an external power supply. After programming the output voltages for the DACs, disconnect the USB cable from the EV kit to eliminate any noise coming from the USB, and measure the outputs. User-Supplied I2C Interface To use the MAX5116 EV kit with an external I2C interface, install the shunts of JU3 and JU4 to the 2-3 position. Connect the SDA, SCL, and GND lines from the external I2C interface to the SDA, SCL, and GND pads on the MAX5116 EV kit. 6 _______________________________________________________________________________________ MAX5116 Evaluation Kit Evaluates: MAX5116/MAX5109 Figure 2a. MAX5116 EV Kit Schematic (Sheet 1 of 2) _______________________________________________________________________________________ 7 Evaluates: MAX5116/MAX5109 MAX5116 Evaluation Kit Figure 2b. MAX5116 EV Kit Schematic (Sheet 2 of 2) 8 _______________________________________________________________________________________ MAX5116 Evaluation Kit Evaluates: MAX5116/MAX5109 Figure 3. MAX5116 EV Kit Component Placement Guide—Component Side _______________________________________________________________________________________ 9 Evaluates: MAX5116/MAX5109 MAX5116 Evaluation Kit Figure 4. MAX5116 EV Kit PCB Layout—Component Side 10 ______________________________________________________________________________________ MAX5116 Evaluation Kit Evaluates: MAX5116/MAX5109 Figure 5. MAX5116 EV Kit PCB Layout—Solder Side 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 ____________________ 11 © 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.