Evaluates: MAX6974 19-0519 Rev 1 2/07 MAX6974 Evaluation Kit General Description Features The MAX6974 evaluation kit (EV kit) is an assembled and Proven PCB Layout tested printed circuit board (PCB) that demonstrates the Complete Evaluation System MAX6974/ MAX6975 precision current-sinking, 24-output PWM LED drivers. The MAX6974/MAX6975 functionality Convenient On-Board Test Points can be evaluated using the MAX6974 EV kit. The Fully Assembled and Tested MAX6975 has 14-bit individual PWM and 5-bit global PWM, while the MAX6974 has 12-bit individual PWM and Multiplexed 4 x 8 RGB (96 LEDs Total) 20mA LED 7-bit global PWM. The evaluation kit comes with a Matrix MAX6974ATL+ installed. The Windows 98/2000/XP software supports only the MAX6974. Ordering Information PART TYPE INTERFACE REQUIREMENTS MAX6974EVKIT+ EV kit Windows PC with RS-232 serial port Windows is a registered trademark of Microsoft Corp. +Denotes a lead-free and RoHS-compliant EV kit. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION JU1JU13 13 2-pin headers 100F 20 %, 10V X 5R capaci to r ( 1812) C1 1 TDK C 4532 X5R 1A107M JU14JU20 7 3-pin headers 100F 20%, 6.3V X 5R capaci tors ( 12 10) P1 1 Female DB9 connector C2, C3 2 TDK C 32 25X5 R0J107M pnp transistors Q1Q4 4 Zetex FMMTL717TA (SOT23) 10F 10% , 6.3V X 5R capaci to rs ( 0 603) C4, C5, C25 3 TDK C 1608 X5R 0J106K R1R8 8 200 1% resistors (0603) 0.47F 10% , 6.3V X5 R capac itor s (0 402) R9R12 4 182 1% resistors (0603) C6C9 4 TDK C 10 05X5 R0J474K R13R16 4 562 1% resistors (0603) 0.1F 10 %, 6.3V X 5R capaci tors ( 0402) R17 1 4.99k 1% resistor (0402) C10C16 7 TDK C 1005 X5R 0J104K R18 1 9.53k 1% resistor (0402) 0.001F 10%, 25V X 5R capacitors (0402) R19 1 249k 1% resistor (0402) C17, C18 2 TDK C 100 5X5R1E102 K R20 1 267k 1% resistor (0402) 120pF 5% , 25V C 0G capaci to rs ( 04 02) TP1TP10 0 Not installed C19C22 4 TDK C 1005 C0G 1E1 21J 24-output LED drivers 10p F 5% , 25V C 0G capaci tor s (040 2) U1, U2 2 Maxim MAX6974ATL+ C23, C24 2 TDK C 1005 C0G 1E1 00J (40-pin TQFN, 6mm x 6mm EP) 0.01F 1 0%, 6.3V X 5R capac itor ( 0402) Low-power microcontroller C26 1 Maxim MAXQ2000-RAX+ TDK C 1005 X5R 1E1 03K U3 1 (68-pin QFN, 10mm x 10mm EP) RGB LED modules D1D32 32 Dual LVDS line driver Stanley URGB1308B-10-TF U4 1 Maxim MAX9112EKA+ (8-pin SOT23) J1 0 Not installed Dual LVDS line receiver J2 1 2 x 5 right-angle receptacle (0.1in) U5 1 Maxim MAX9113EKA+ (8-pin SOT23) J3 1 2 x 5 right-angle male header (0.1in) J4 0 Not installed Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX6974 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION RS- 232 tran scei ver 20MHz crystal U6 1 Y1 1 M axim M AX33 11EU B+ ( 10- p i n M AX ) Citizen HCM49-20.000MABJ-UT LDO linear regulators 32MHz oscillator U7, U8 2 Y2 1 Maxim MAX1658ESA+ (8-pin SO) ECS ECS-3953M-320-B-TR 1 PCB: MAX6974 evaluation kit+ LDO linear regulator U9 1 Maxim MAX1659ESA+ (8-pin SO) 20 Shunts MAX is a registered trademark of Maxim Integrated Products, Inc. Component Suppliers SUPPLIER PHONE FAX WEBSITE TDK Corp. 847-803-6100 847-390-4405 www.component.tdk.com Zetex USA 631-543-7100 631-864-7630 www.zetex.com Note: Indicate that you are using the MAX6974 when contacting these component suppliers. 5) Turn on the power supply. None of the LEDs light Quick Start up at this time. Required Equipment 6) Start the MAX6974 program by opening its icon in Before you begin, you need the following equipment: the Start menu. Maxim MAX6974EVKIT 7) In the Select Maxim MAX6974 Evaluation Kit DC power supply, 5VDC at 1A Software Mode window, select Connect to EVKit on port (Autodetect). Click OK. See Figure 1. Verify that Windows 98/2000/XP-compatible computer with a the blue M test pattern appears (test 0 blue M.clr). serial (COM) port 8) From the File menu, select Load Test Patterns... 9-pin I/O extension cable and then pick the file test 01 all white.clr. Verify Procedure that all 32 RGB LEDs light up in white. Do not turn on the power until all connections 9) In the LED0 color grid, double-click one of the are complete. large round color dots in the 4 x 8 grid (or select 1) Ensure that all jumpers JU1JU20 are in 1-2 posi- one of the dots and click OK). The standard color tion (see Table 5). selector dialog box appears. Select a color and click OK. Click Upload All to write the 4 x 8 color 2) Connect a 5VDC power source (7VDC maximum) to grid data to the board. Verify that the LEDs light up the board at the VLED and GND terminals. in colors corresponding to the software color grid 3) Connect a cable from the computers serial port to settings. the EV kit. If using a 9-pin serial port, use a straight- 10) Set Global Intensity to 5/63 and click Upload All. through, 9-pin female-to-male cable. If the only Verify that the LEDs are brighter. available serial port uses a 25-pin connector, a standard 25-pin-to-9-pin adapter is required. Detailed Description of Software 4) Install the evaluation software on your computer by The MAX6974 EV kit software controls one or more launching MAX6974.msi. (The latest software can MAX6974 EV kit boards, each of which has two be found on Maxims website www.maxim-ic.com.) MAX6974s driving a 4 x 8 grid of LEDs. The program files are copied and icons are created for them in the Windows Start menu. 2 Evaluates: MAX6974