MAX6969EVKIT+

19-0985; Rev 0; 9/07 MAX6969 Evaluation Kit The MAX6969 evaluation kit (EV kit) is an assembled and tested printed-circuit board (PCB) that demonstrates the MAX6969 16-port, 5.5V constant-current LED driver. Windows® 2000/XP/Vista-compatible software provides a handy user interface to exercise the features of the MAX6969. Features ♦ Windows 2000/XP/Vista (32-Bit)-Compatible Software ♦ Proven PCB Layout ♦ Complete Evaluation System ♦ Three Daisy-Chained Devices ♦ Six 7-Segment Displays ♦ Fully Assembled and Tested Ordering Information PART TYPE MAX6969EVKIT+ EV kit +Denotes lead-free and RoHS-compliant. Component List DESIGNATION C1–C4, C6–C9, C12, C17, C18, C37 C5 C10, C39 C11, C38, C40 C13 QTY DESCRIPTION 12 0.1µF ±10%, 16V X7R ceramic capacitors (0603) TDK C1608X7R1C104K Taiyo Yuden EMK107BJ104KA Murata GRM188R71C104K 1 4.7µF ±20%, 50V (min) X7R ceramic capacitor (2220) Murata GRM55ER72A475K TDK C5750X7R1H475M 2 1µF ±10%, 16V X5R ceramic capacitors (0603) TDK C1608X5R1C105K Murata GRM188R61C105K AVX 0603YD105MAT KEMET C0603C105K4PAC 3 1 10µF ±20%, 16V X5R ceramic capacitors (1206) Murata GRM31CR61C106M or TDK C3216X5R1C106M Panasonic ECJ3YB1C106M KEMET C1206C106M4PAC 33nF ±10%, 16V (min) X5R ceramic capacitor (0603) Taiyo Yuden EMK107BJ333KA Murata GRM188R71E333K TDK C1608X7R1E333K DESIGNATION QTY DESCRIPTION 2 10pF ±5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H100J or TDK C1608C0G1H100J Taiyo Yuden UMK107CG100DZ C30, C31 2 22pF ±5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H220J or TDK C1608C0G1H220J Taiyo Yuden UMK107CG220KZ J1 1 USB series B right-angle PC-mount receptacle J2 0 2 x 4 dual-row vertical header pin J3 0 Not installed, 2 x 5-pin JTAG header JU1, JU3, JU4, JU5 0 Not installed, 3-pin headers—PCB short trace JU2 0 Not installed, 2-pin header—PCB short trace L1 1 Ferrite bead (0603) TDK MMZ1608R301A Murata BLM18SG700 TN1 LED1, LED2, LED3 3 Dual-digit, 0.56in 7-segment displays Lumex LDD-A514RI C15, C16 Windows is a registered trademark of Microsoft Corp. ________________________________________________________________ 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: MAX6969 General Description Evaluates: MAX6969 MAX6969 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION LED4 1 Red LED (T1-3/4) R1, R2, R3 3 2kΩ ±1% resistors (0603) R4 1 470Ω ±5% resistor (0603) R5 1 2.2kΩ ±5% resistor (0603) R6 1 10kΩ ±5% resistor (0603) R7, R8 2 27Ω ±5% resistors (0603) R9 1 1.5kΩ ±5% resistor (0603) R17 1 330Ω ±5% resistor (0603) R19–R23 0 Not installed 3 Maxim 16-port, 5.5V constantcurrent LED drivers MAX6969AUG+ (24-pin TSSOP) 1 Maxim RISC microcontroller (68-pin QFN-EP, 10mm x 10mm) MAXQ2000-RAX+ U1, U2, U3 U4 DESIGNATION QTY DESCRIPTION U5 1 USB UART FTDI FT232BL (32-pin TQFP, 7mm x 7mm) U6 1 3-wire EEPROM Atmel AT93C46A U7 1 Maxim LDO regulator (5-pin SO70) MAX8511EXK33+ (Top Mark: AEI) U8 1 Maxim LDO regulator (5-pin SO70) MAX8511EXK25+ (Top Mark: ADV) Y2 1 16MHz crystal Y3 0 Not installed Y4 1 6MHz crystal — 1 PCB: MAX6969 Evaluation Kit+ — 1 USB A-to-B cable Component Suppliers SUPPLIER AVX Corp. PHONE 843-946-0238 WEBSITE www.avxcorp.com Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com Panasonic Corp. 714-373-7366 www.panasonic.com Taiyo Yuden 800-348-2496 www.t-yuden.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX6969 when contacting these component suppliers. 2 _______________________________________________________________________________________ MAX6969 Evaluation Kit Required Equipment Before beginning, the following equipment is needed: • Maxim MAX6969 EV kit (includes USB type A-to-B cable) • User-supplied Windows 2000/XP/Vista-compatible computer 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 MAX6969 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, 6969Rxx.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 launching the 6969Rxx.msi program inside the zip file. The program files are copied and icons are created in the Windows Start | Programs menu. 3) Ensure that the jumper settings are in the default positions, as shown in Table 1. 4) Connect the USB cable from the PC to the MAX6969 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. 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\Maxim MAX6969EVKIT (default installation directory) using the Browse button. During device driver installation, Windows XP shows a warning message indicating that the device driver Maxim uses does not contain a digital signature. This is not an error condition. It is safe to proceed with the installation. Refer to the USB_Driver_Help.PDF document for additional information 6) Verify that the EV kit’s LED4 is lit, indicating that the USB is connected and providing power. 7) Start the EV kit software by clicking its icon in the Windows Start menu. 8) The software should automatically connect to the board after a few seconds. 9) In the Demonstration Mode group box, click on the Counter demonstration radio button. The 7-segment LED display will count in decimal, as shown in Figure 1. 10) In the Demonstration Mode group box, click on the PC Time demonstration radio button. The 7-segment LED will show the 24-hour time in hours, minutes, and seconds, as shown in Figure 2. _______________________________________________________________________________________ 3 Evaluates: MAX6969 Quick Start Evaluates: MAX6969 MAX6969 Evaluation Kit Figure 1. The MAX6969 EV Kit Software’s Counter Demonstration (shows the 7-segment display counting up in decimal) Figure 2. The MAX6969 EV Kit Software’s PC Time Demonstration (displays the 24-hour time on the 7-segment display once every second) 4 _______________________________________________________________________________________ MAX6969 Evaluation Kit Evaluates: MAX6969 Table 1. Jumper Functions JUMPER FUNCTION JU1 VLED JU2 OE JU3 Daisy chain JU4 SHUNT POSITION JU5 1-2* LED1, LED2, and LED3 are powered from the 5V USB supply 2-3 LED1, LED2, and LED3 are powered from external user-provided EXT VLED supply 1-2* OE = GND, enabling the display No shunt Daisy chain Daisy chain DESCRIPTION OE may be driven externally, disabling the display, or PWM dimming the brightness 1-2* Daisy-chain multiple devices MAXQ2000 MISO = from JU4 pin 2 2-3 See Table 2 1-2* Daisy-chain multiple devices MAXQ2000 MISO = from JU5 pin 2 2-3 See Table 2 1-2 See Table 2 2-3* Daisy chain three devices: U1, U2, and U3 MAXQ2000 MISO = from U3 DOUT *Default position. To change configuration, first cut apart the corresponding connection on the back of the board. Table 2. Daisy-Chain Jumper Functions DAISY-CHAIN DEVICE CONFIGURATION JU3 JU4 JU5 J2 JUMPER BLOCK U1 only 2-3 X X 1-2, 3-4, 5-6, 7-8* U1-U2 1-2* 2-3 X 1-2, 3-4, 5-6, 7-8* U1-U2-U3* 1-2* 1-2* 2-3* 1-2, 3-4, 5-6, 7-8* U1-U2-U3-external devices 1-2 * 1-2* 1-2 1-2, 3-4, 5-6, 7-8* External devices only X X X 1 3 5 7 = = = = DOUT from last device CLK to all devices DIN to first device LE to all devices *Default position. To change configuration, first cut apart the corresponding connection on the back of the board. X = Don’t care. _______________________________________________________________________________________ 5 Evaluates: MAX6969 MAX6969 Evaluation Kit Detailed Description of Software Detailed Description of Hardware The MAX6969 EV kit software provides several demonstration modes. Selecting Click to toggle segments allows arbitrary patterns to be entered by clicking on the segments in the GUI display, then clicking the Apply button. Selecting the Counter demonstration, PC Time demonstration, or PC Date demonstration mode displays numeric data. The Loopback test all segments mode is used during EV kit testing to verify that all three MAX6969 devices are daisy chained, and that each segment is individually controllable. The last two modes turn all segments off or all segments on. Each MAX6969 (U1, U2, and U3) drives a dual 7-segment display (LED1, LED2, and LED3). LED4 indicates USB 5V power is present. The FTDI FT232 (U5) provides the USB engine. The USB 5V power is regulated down to 3.3V and 2.5V by U7 and U8. The low-voltage RISC microcontroller, MAXQ2000 (U4), processes commands sent by a program running on the PC. Each particular EV kit has its own custom software specific to that kit. The firmware loaded on this board is identical to the MINIQUSB interface module. History Window Each time the 7-segment display is updated, the SPI sequence is displayed in hexadecimal, in time sequence. The first 2 bytes control the last device in the daisy chain (U3). The last 2 bytes control the first device in the daisy chain (U1). 6 Using an External SPI Bus Instead of USB To disconnect from the on-board SPI bus, cut the links at jumper block J2 and jumper block JU1. Connect JU1, pins 2-3, and provide 5V power to the GND and EXT_VLED oval pads. Connect the external SPI bus to the labeled test points of jumper block J2. _______________________________________________________________________________________ _______________________________________________________________________________________ 7 Figure 3a. MAX6969 EV Kit Schematic (Sheet 1 of 3) GND EXT_VLED 1 2 3 JU1 USB +5V DOUT_U1 DOUT 22 C4 0.1μF U1 MAX6969 JU2 VLED C5 4.7μF 50V 21 20 19 18 17 16 15 14 13 OE OE OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 DOUT_U1 C2 0.1μF 24 18 17 4 14 13 11 10 8 6 JU3 R2 2kΩ 1% 23 VDDIO 3 2 1 V+ GND DUT_SCLK DOUT_U2 DUT_CS MAX6969 U2 OE 21 20 19 18 17 16 15 14 13 18 17 4 14 13 11 10 8 6 1 2 3 15 16 9 7 12 5 VLED LED2 OE OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 DOUT_U2 C3 0.1μF 24 JU4 R3 2kΩ 1% 23 VDDIO 3 2 1 V+ GND JU5 3 2 1 EXT_MISO DUT_CS MAX6969 OE U3 DOUT_U3 DUT_SCLK DOUT_U3 21 20 19 18 17 16 15 14 13 18 17 4 14 13 11 10 8 6 1 2 3 15 16 9 7 12 5 VLED LED3 OE OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 1 2 3 15 16 9 7 12 5 LED1 NOTES: PINS 1 AND 2 ARE SHORTED ON JU1–JU4, PINS 2 AND 3 ARE SHORTED ON JU5. DUT_MOSI DUT_SCLK DUT_CS DUT_MISO 24 R1 2kΩ 1% V+ GND 23 C1 0.1μF SET DIN CLK LE OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 SET DIN DOUT 22 CLK LE OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 SET DIN DOUT 22 CLK LE OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 VLED 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 VDDIO 1 2 3 4 5 6 7 8 9 10 11 12 1 Evaluates: MAX6969 MAX6969 Evaluation Kit Evaluates: MAX6969 MAX6969 Evaluation Kit USB +5V USB +5V USB +5V VDDIO J1 USB USB +5V L1 1 J1-1 C37 0.1μF GND +2.5V C38 10μF GND C39 1μF 3 IN 5 OUT U8 MAX8511 SHDN 1 C40 10μF 2 GND VDDIO USB +5V C10 1μF GND 3 IN U7 C6 0.1μF 5 OUT MAX8511 SHDN R4 470Ω C12 0.1μF C11 10μF 2 GND GND GND 6 GND R7 27Ω GND GND C13 33nF GND 8 J1-2 30 3 AVCC VCC C7 0.1μF C8 0.1μF GND 26 GND 13 VCC VCCIO 3V3OUT TXD RXD USBDM RTS R8 27Ω 7 J1-3 CTS USBDP DTR USB +5V R9 1.5kΩ J1-4 DGND DSR 5 RSTOUT 4 RESET 27 XTIN C30 22pF 8 6 7 C9 0.1μF 5 VCC ORG CS SK N.C. D1 GND D0 1 TXDEN 3 2 XTOUT TXLED RXLED EECS EESK PWRCTL R6 10kΩ J2-1 J2-2 DUT_MISO MAXQ_SCLK J2-3 J2-4 DUT_SCLK MAXQ_MOSI J2-5 J2-6 DUT_MOSI MAXQ_CS J2-7 J2-8 DUT_CS RTS 22 CTS 21 DTR 20 DSR 19 DCD 18 RI 16 12 11 14 EEDATA USB +5V 31 DGND PWREN TEST SLEEP AGND 29 GND 9 GND 17 GND GND GND Figure 3b. MAX6969 EV Kit Schematic (Sheet 2 of 3) 8 RXD 23 GND R5 2.2kΩ MAXQ_MISO TXD 24 4 J2 GND 32 1 USB +5V R17 330Ω C31 22pF 2 GND LED4 RED DGND RI Y4 6MHz 28 U6 AT93C46A USB +5V GND DCD U5 FT232BL 25 _______________________________________________________________________________________ 15 10 MAX6969 Evaluation Kit Evaluates: MAX6969 Y3 32.768kHz RTS DTR MAXQ_CS MAXQ_MOSI Y2 16MHz MAXQ_SCLK C16 10pF CTS C17 0.1μF MAXQ_MISO GND C15 10pF VDDIO 2 32KOUT 32KIN P5.2/RX1/INT10 P5.3/TX1/INT11 P5.4/SS P5.7/MISO P5.5/MOSI P6.1/T1/INT13 P6.0/T1B/INT12 P6.2/T2B/OW_OUT P6.3/T2/OW_IN P6.4/T0B/WKOUT0 HFXOUT P5.6/SCLK SEG35/COM1 SEG4/P0.4/INT0 SEG34/COM2 SEG5/P0.5/INT1 SEG33/COM3 SEG6/P0.6/INT2 SEG32 SEG7/P0.7/INT3 SEG31/P3.7/INT7 SEG29/P3.5/INT5 SEG10/P1.2 SEG28/P3.4/INT4 49 1 2 3 4 5 6 7 8 9 +2.5V GND SEG30/P3.6/INT6 SEG9/P1.1 GND SEG8/P1.0 VDD 68 MAXQ2000 SEG3/P0.3 SEG27/P3.3 67 COMO SEG26/P3.2 66 SEG2/P0.2 SEG25/P3.1 65 33 32 TDO 31 TMS 30 TDI 29 TCK U4 SEG1/P0.1 SEG24/P3.0 64 MAXQ_RESET J3 JTAG J3-6 J3-4 J3-3 J3-7 J3-5 J3-8 J3-9 J3-2 J3-1 J3-10 VDDIO SEG0/P0.0 SEG23/P2.7 63 VADJ SEG22/P2.6 62 P4.0/TCK/INT8 SEG21/P2.5 61 VLCD2 SEG20/P2.4 60 P4.1/TDI/INT9 SEG19/P2.3 59 VLCD1 SEG18/P2.2 58 RESET P4.2/TMS SEG17/P2.1 57 35 VLCD SEG16/P2.0 56 1 41 40 39 38 37 36 34 P4.3/TDO SEG15/P1.7 55 43 SEG14/P1.6 54 P7.0/TXO/INT14 P7.1/RXO/INT15 44 SEG13/P1.5 53 45 SEG12/P1.4 TXD 46 SEG11/P1.3 RXD 52 47 P6.5/T0/WKOUT1 VDDIO GND 50 48 51 HFXIN 27 R19 SHORT (PC TRACE) 26 25 24 R20 SHORT (PC TRACE) 22 R21 SHORT (PC TRACE) 19 RTS TMS R22 SHORT (PC TRACE) DCD TDI 10 11 12 13 14 15 16 17 28 42 R23 SHORT (PC TRACE) C18 0.1μF GND RI TDO 20 18 DTR MAXQ_RESET 23 21 GND TCK DSR GND Figure 3c. MAX6969 EV Kit Schematic (Sheet 3 of 3) _______________________________________________________________________________________ 9 Evaluates: MAX6969 MAX6969 Evaluation Kit Figure 4. MAX6969 EV Kit Component Placement Guide—Component Side 10 ______________________________________________________________________________________ MAX6969 Evaluation Kit Evaluates: MAX6969 Figure 5. MAX6969 EV Kit PCB Layout—Component Side ______________________________________________________________________________________ 11 Evaluates: MAX6969 MAX6969 Evaluation Kit Figure 6. MAX6969 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.