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1 9-8; Rev 0; 9/0 MAX6 Evaluation Kit General Description The MAX6 evaluation kit (EV kit) is a fully assembled and tested PC board that evaluates the MAX6 - bit, 4-channel system monitor. The EV kit also includes Windows 98 SE-/000-/XP-compatible software, which provides a simple graphical user interface (GUI) for exercising the MAX6 s features. The EV kit comes with the MAX6EUB installed. The MAX6 EV kit can also be used to evaluate the MAX6 0-bit, 4-channel system monitor. Contact the factory for free samples of the pin-compatible MAX6EUB, MAX6_EUB, and MAX6_EUB to evaluate these parts. See Table for ordering different address options. DESIGNATION QTY DESCRIPTION C C4 4 C, C8, C9, C, C, C4 C7, C C6, C, C4, C 0 4 C7, C7, C8 C0, C8 C9, C0 C GP, GP 0 Not installed 0nF ±%, 0V X7R ceramic capacitors (060) TDK 608X7RH0K 0.µF ±%, 0V X7R ceramic capacitors (060) TDK C608X7RC04K µf ±%, 0V X7R ceramic capacitors (0) TDK CX7RC6K µf ±0%, 0V X7R ceramic capacitors (060) TDK C608X7RC0K 0pF ±%, 0V C0G ceramic capacitors (060) TDK C608C0GH00J pf ±%, 0V C0G ceramic capacitors (060) TDK C608C0GH0J nf ±0%, 0V X7R ceramic capacitor (060) TDK C608X7RHK Features 4-Channel Single-Ended or -Channel Fully Differential Inputs -Bit, I C-Compatible ADC Single Supply,.7V to.6v.048v Internal Reference V to V DD External Reference USB Interface USB Powered Proven PC Board Layout Windows 98 SE-/000-/XP-Compatible Evaluation Software Fully Assembled and Tested Ordering Information PART TYPE INTERFACE MAX6EVKIT EV kit IC -wire interface Component List DESIGNATION QTY DESCRIPTION INT Red LED (060) J USB series B right-angle PC-mount receptacle connector J 0 Not installed JU -pin single-row header JU JU6 -pin single-row headers L Ferrite bead (060) TDK MMZ608R0A PWR Red-orange LED (060) R, R, R, R6, R, R6, R7 7 Ω ±% resistors (060) R, R4, R7 0 Not installed R8, R0, R, R 4 0Ω ±% resistors (060) R9 470Ω ±% resistor (060) R0, R 7Ω ±% resistors (060) R, R9, R4.kΩ ±% resistors (060) R.kΩ ±% resistor (060) Windows is a registered trademark of Microsoft Corp. Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at

2 Component List (continued) DESIGNATION QTY DESCRIPTION R4 0kΩ ±% resistor (060) R8 kω ±% resistor (060) R 47kΩ ±% resistor (060) TP 0 Not installed TRX Yellow LED (060) U MAX6EUB (0-pin µmax ) U MAX608AEUR (-pin SOT) U MAXQ000-RAX (68-pin QFN-EP) U4 U U7 FTDI FTBL (7mm x 7mm -lead TQFP) AT9C46A type -wire EEPROM (8-pin SO) MAX8EXK-T (-pin SC70) Top mark: AEI U8 MAX8EXK-T (-pin SC70) Top mark: ADV Y 0MHz crystal Y 6MHz crystal 6 Shunts MAX6 EV kit PC board MAX6 EV kit software CD-ROM Component Suppliers SUPPLIER PHONE WEBSITE Citizen America Corporation TDK Note: Indicate you are using the MAX6 when contacting these component suppliers. Quick Start Recommended Equipment MAX6 EV kit Signal source from 0 to.6v Windows 98 SE-/000-/XP-compatible PC Spare USB port on the PC MAX6 EV kit Files FILE DESCRIPTION INSTALL.EXE Installs the EV kit files on your computer MAX6.EXE Application program HELPFILE.HTM Help file FTDIBUS.INF USB device-driver file FTDIPORT.INF VCP device-driver file UNINST.INI U ni nstal l s the E V ki t softw ar e USB driver installation help TROUBLESHOOTING_USB.PDF file Procedure ) Make sure the shunts of all jumpers are in the right position. JU: (-) I C slave address = 0x6A JU: (Open) AIN is an input JU: (-) USB powered JU4: (-) SDA connected to on-board microcontroller (µc) JU: (-) SCL connected to on-board µc JU6: (-) INT connected to on-board µc See Table when using the MAX6EUB, MAX6_EUB, and MAX6_EUB. ) Connect the terminal of the signal source to the A pad and the signal source to the AIN0 pad. Connect AIN, AIN, and AIN to. ) Set the signal source to V. 4) Install the MAX6 evaluation software on your computer by running the INSTALL.EXE program on the installation CD-ROM. The program files are copied and icons are created in the Windows Start menu. ) Connect the USB cable from the PC to the MAX6 EV kit. A Building Driver Database window pops up in addition to a New Hardware Found message. If you do not see a window that is similar to the one described above after 0 seconds, remove the USB cable from the MAX6 EV kit and reconnect it again. Administrator privileges are required to install the USB device driver on Windows 000 and Windows XP. Refer to the TROUBLESHOOTING_USB.PDF document included with the software for more information. µmax is a registered trademark of Maxim Integrated Products, Inc.

3 6) 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\MAX6 (default installation directory) using the Browse button. 7) Start the MAX6 EV kit software by opening its icon in the Start menu. 8) In the middle of the main window, as shown in Figure, set the Configuration Byte D-D pulldown menu to 00 CS CS0. Set the Setup Byte D0 pulldown menu to Monitor Setup. The Configuring Monitor Mode window pops up as shown in Figure. 9) In the AIN0 Thresholds box, set the LOWER and UPPER edit fields to 0.9V and.v, respectively. Press the OK button in the bottom of the Configuring Monitor Mode window. 0) Press the Execute button located at the right side of the Configuration Byte pulldown menus. ) Set the Setup Byte D0 pulldown menu to 0 No Action, the Configuration Byte D6 - D pulldown menu to 0 SCAN SCAN0 Monitor Mode, and SMBus is a trademark of Intel Corp. press the Execute button. The MAX6 enters the monitor mode and the Reading in Monitor Mode window pops up as shown in Figure. This window displays the Alarm-Status, Latched-Fault, and Current-Conversion boxes. Press the Read button or check the Auto Read checkbox to update all three boxes. ) Increase the signal source connected to AIN0 to.v. Press the Read button or check the Auto Read checkbox in the Reading in Monitor Mode window to read the alarm status. Detailed Description of Software The evaluation software s main window is shown in Figure. The device s I C address, reference voltage value, and Timer Interval pulldown menu are located at the top of the main window. The Setup Byte pull-down menus, Configuration Byte pulldown menus, and Execute button are located in the middle section. The ADC Value Display box is located at the bottom of the main window. The Interrupt Status indicator, Send SMBus Alert button, and Exit button are at the lowerright side of the main window. Figure. MAX6 Evaluation Software Main Window

4 Device I C Address The I C Address pulldown menu shown in the top-left corner of Figure autodetects the lowest MAX6/ MAX6 device I C address. If more than one MAX6/MAX6 device is connected to the I C bus, the user can use the I C Address pulldown menu to manually change the device s I C address as shown in Table. Table. SMBus/IC Slave Address JUMPER JU *Default configuration. IC SHUNT POSITION ADDRESS MAX6EUB -* 6A MAX6EUB - 68 MAX6KEUB - 6 MAX6KEUB - 60 MAX6LEUB - 66 MAX6LEUB - 64 MAX6MEUB - 6E MAX6MEUB - 6C Reference Voltage Information On the right side of the I C Address pulldown menu is the reference voltage information. It displays either Internal Reference Voltage or External Reference Voltage depending on the Setup Byte D6 - D pulldown menu setting. If the current setting is external reference mode, the user has two external reference options as shown in Table. Table. External Reference Selection (JU) JUMPER JU SHUNT POSITION - Open* *Default configuration. DESCRIPTION On-board external reference connected to AIN/REF User-supplied external reference to AIN/REF Timer Interval Use the Timer Interval pulldown menu to set the interval value of the Auto Read timer. The choices are 0.s, s, s, s, 4s, s, and 6s. There are two Auto Read checkboxes that use this timer interval value. The first Auto Read checkbox is located in the ADC Value Display box of the main window, and the other is located in the Reading in Monitor Mode window. Setup Byte and Configuration Byte In the middle of the main window are the Setup Byte and Configuration Byte pulldown menus and a corresponding Execute button. Refer to MAX6 data sheet for a detailed description of the Setup Byte and Configuration Byte registers. Configuring Monitor Mode If the Monitor Setup is selected in the Setup Byte D0 pulldown menu, the Configuring Monitor Mode window pops up as shown in Figure. The user can reset the channel alarm bits by checking the proper channel in the Alarm Reset box. Select the Scan Speed pulldown-menu setting. Enable the interrupt by checking the INT_EN checkbox, and set the LOWER and UPPER edit fields to the desired value in the AIN_ Thresholds box. Depending on the Setup Byte D - D and Setup Byte D0 pulldownmenu settings, the threshold values for some of the channels may be grayed out. Whenever the Setup Byte or the Configuration Byte pulldown-menu settings have been modified, the user MUST PRESS the Execute button to synchronize the software settings with the hardware. Readback Mode If the Configuration Byte D6 - D pulldown menu is set to 0 SCAN SCAN0 Monitor Mode, the Configuration Byte D4 - D pulldown menu is set to CS CS RD MON Setup, and the Execute button is pressed, the Readback Mode window pops up. The Readback Mode window shows the current scan speed and alarm threshold(s). Both the Auto Read checkbox and the Read ADC button are disabled in this mode. Reading in Monitor Mode If the Configuration Byte D6 - D pulldown menu is set to 0 SCAN SCAN0 Monitor Mode, the Configuration Byte D4 - D pulldown menu is set to 00 CS CS Normal, and the Execute button is pressed, the Reading in Monitor Mode window pops up as shown in Figure. Both the Auto Read checkbox and the Read ADC button are disabled in this mode. 4

5 Figure. Configuring Monitor-Mode Window Figure. Reading in Monitor-Mode Window

6 ADC Value Display The ADC Value Display box shown in the main window displays the channel number (CH#), the voltage, and the code. Pressing the Read ADC button updates the status of the ADC Value Display box. There may be lines in the ADC Value Display box that are grayed out due to the Setup Byte and Configuration Byte settings. Check the Auto Read checkbox to automatically read the current ADC value at a rate set by the Timer Interval pulldown menu. When this Auto Read checkbox is checked, the Read ADC button is disabled. Interrupt The Interrupt Status indicator is located in the lower right of the main window. It indicates the current status of the MAX6 s interrupt pin and is updated at a rate based on the value in the Timer Interval pulldown menu. The hardware interrrupt is active only when INT_EN is checked in the Configuring Monitor Mode window. When an interrupt occurs, the INT LED on the MAX6 EV kit board lights up in real time. SMBus Alert When the Send SMBus Alert button is pressed, the SMBus Alert window pops up and displays the alertdevice address as shown in Figure 4. If there is no alarm, the Alert Device Address field shows the highest SMBus address, which is 0xfe. ADC Data Block Sampling Accessing the Action Block Sample menu results in the Block Sampling window popping up as shown in Figure. The user can change the sample rate and sampling length. Pressing the Sample button starts sampling and changes the Configuration Byte D6 - D pulldown menu to SCAN SCAN0 single conversion. After sampling is finished, the user can save the data to a file by pressing the Save button. The Save button is not active until the sampling is done. Figure 4. SMBus-Alert Window Figure. Block-Sampling Window 6

7 Connecting Multiple MAX6 EV Kits on the I C Bus Select one MAX6 EV kit as the primary board. Remove the shunts on jumpers JU JU6 of all nonprimary EV kit boards. See Table for JU JU6 descriptions. A dedicated.v power supply is required to power up all nonprimary EV kit boards. Table. External Reference Selection (JU JU6) JUMPER JU JU4 JU JU6 SHUNT POSITION -* USB powered Open DESCRIPTION User-supplied power supply -* SDA connected to on-board µc Open User-supplied IC interface -* SCL connected to on-board µc Open User-supplied IC interface -* INT connected to on-board µc Open *Default configuration. User-supplied interrupt input Connect the corresponding SDA, SCL, INT, and signals of all the EV kits together. Make sure all of the MAX6 EV kits have a unique I C address. Only connect the USB cable from the PC to the primary EV kit board and run the MAX6 EV kit software. First, manually enter the correct value into the I C Address pulldown menu for the corresponding MAX6 EV kit. Second, select the desired settings in the Setup Byte and Configuration Byte pulldown menus for each MAX6 EV kit. Make sure to press the Execute button to synchronize the software with the hardware of each MAX6 EV kit. Detailed Description of Hardware MAX6 EV Kit The MAX6 EV kit board provides a proven layout for evaluating the MAX6/MAX6. The EV kit comes with the MAX6EUB installed. The MAX6EUB (U) is powered from the USB supply regulated to.v. To use the MAX6 EV kit with a user-supplied I C interface, remove the shunts on jumpers JU JU6. Connect SDA, SCL, and lines from the user-supplied I C interface to the corresponding pads on the MAX6 EV kit board. Populate R, R4, and R7 as needed on SCL, SDA, and INT. Apply a.7v to.6v power supply to the V DD and pads of the MAX6 EV kit. On-Board External Voltage Reference The on-board MAX608 provides a precision external voltage reference for the MAX6 EV kit. Short JU on the MAX6 EV kit to use the on-board external voltage reference. Program the device by setting the Setup Byte D6 - D pulldown menu to 0 REF/AIN SEL SEL0. 7

8 AIN0 AIN AIN AIN/REF A U MAX608 IN C8 OUT J USB J- J- J- J-4 C C6 μf L R0 7Ω R 7Ω R Ω R Ω R Ω R6 Ω JU EVR C μf C 0nF C 0nF C 0nF C4 0nF C7 μf C 4 AIN0 AIN AIN AIN/VREF AO JU ASEL C4 +V C U MAX6 C nf C9 pf R.kΩ +V SDA SCL INT C R8 0Ω +V R9 470Ω R OPEN INT RED PWR RED-ORANGE +V +V R4 OPEN R8 kω 0 6 USBDM USBDP XTIN R7 OPEN SDA SCL C7 AVVC VCC VCC VCCIO VOUT TXD RSTOUT RESET U4 FTBL RXD RTS CTS DTR DSR DCD RI INT 8 SDA SCL INT P7 P70 P P6 P P64 C +V U AT9C46A 8 VCC CS 6 ORG SK 7 NC D D0 4 R.kΩ R4 +V 0kΩ Y 6MHz C0 pf 8 XTOUT EECS EESK EEDATA TEST A TXDEN TXLED RXLED PWRCTL PWREN SLEEP R 0Ω TRX YLW +V +V +.V IN OUT U7 C4 MAX8 μf IN OUT U8 MAX8 C μf C7 μf SHDN C8 μf SHDN Figure 6. MAX6 EV Kit Schematic (Sheet of ) 8

9 C +.V SEG0/P. 49 V DD SEG/P. SEG/P.4 SEG/P. 4 SEG4/P.6 SEG/P.7 6 SEG6/P.0 7 SEG7/P. 8 SEG8/P. 9 SEG9/P. 0 SEG0/P.4 SEG/P. SEG/P.6 SEG/P.7 4 SEG4/P.0 SEG/P. 6 SEG6/P. 7 SEG7/P. SEG9/P. SEG8/P.0 SEG7/P0.7/INT SEG6/P0.6/INT SEG/P0./INT SEG4/P0.4/INT0 P SEG/PO. SEG/PO. SEG/PO. GP OPEN R 0Ω MAXQ000 SEGO/PO.0 R0 0Ω GP OPEN VADJ VLCD VLCD VLCD P7 P7./RXO/INT P70 P7.0/TXO/INT4 V DDIO HFXIN HFXOUT P6./T0/WKOUT P6.4/T0B/WKOUT0 P6./T/OW_IN P6./TB/OW_OUT P6./T/INT P6.0/TB/INT P.7/MISO P.6/SCLK P./MOSI P.4/SS P./TX/INT P./RX/INT0 KIN C Y 0MHz P6 P64 P6 P60 P P C0 0pF C8 0pF 8 4 SEG8/P.4/INT4 SEG9/P./INT SEG0/P.6/INT6 SEG/P.7/INT7 SEG SEG/COM SEG4/COM SEG/COM COM0 P4.0/TCK/INT8 P4./TDI/INT9 P4./TMS P4./TDO RESET KOUT J JTAG JU PWR J-6 J-4 J- J- J- J-0 J-9 J- J-8 R4.kΩ R9.kΩ R 47kΩ P6 P60 P0 JU4 JU JU6 R Ω R6 Ω R7 Ω SDA SDL INT Figure 6. MAX6 EV Kit Schematic (Sheet of ) 9

10 Figure 7. MAX6 EV Kit Component Placement Guide Component Side Figure 8. MAX6 EV Kit PC Board Layout Component Side 0

11 Figure 9. MAX6 EV Kit PC Board 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, 0 San Gabriel Drive, Sunnyvale, CA Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc. Boblet