Evaluates: MAX9776 19-0776 Rev 0 3/07 MAX9776 Evaluation Kit General Description Features The MAX9776 evaluation kit (EV kit) is a fully assembled 1.5W Speaker Output (4, V = 5V) DD and tested printed circuit board (PCB) that evaluates 80mW DirectDrive Headphone Amplifier the MAX9776 ultra-low EMI, 1.5W filterless Class D audio power amplifier with 80mW DirectDrive head- Highly Programmable Input and Output Modes phone amplifier. The MAX9776 EV kit offers highly pro- Controlled Through USB grammable and flexible input and output routing, which allows many combinations of balanced and single- Proven PCB Layout ended signals to be connected. The MAX9776 EV kit Windows 98SE/2000/XP-Compatible Evaluation also includes Windows 98SE/2000/XP-compatible Software software, which provides a simple graphical user inter- face (GUI) for exercising the MAX9776s features. Fully Assembled and Tested Windows is a registered trademark of Microsoft Corp. Component Suppliers Ordering Information SUPPLIER PHONE WEBSITE PART TYPE INTERFACE AVX 843-946-0238 www.avxcorp.com MAX9776EVKIT+ EV kit USB interface TDK 847-803-6100 www.component.tdk.com +Denotes a lead-free and RoHS-compliant EV kit. TOKO 847-297-0070 www.tokoam.com Note: Indicate that you are using the MAX9776 when contact- ing these component suppliers. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 10F 10%, 16V X5R ceramic 100pF 5%, 10V C0G ceramic C51, C52, C53 3 capacitors (1206) C1C6 6 capacitors (0603) TDK C3216X5R1C106M TDK C1608C0G1H101K 22pF 5%, 10V C0G ceramic 0.01F 10%, 25V X7R ceramic C54, C55 2 capacitors (0603) C11 1 capacitor (0603) TDK C1608C0G1H220J TDK C1608X7R1H103J 0.1F 10%, 25V X7R ceramic 10pF 5%, 10V C0G ceramic C12, C28, C29, C56, C57 2 capacitors (0603) 12 capacitors (0603) C41C48, C58 TDK C1608C0G1H100J TDK C1608X7R1E104J 1.0F 10%, 16V X5R ceramic D1 1 Green LED (0603) C13C23, C49, 13 capacitors (0603) D2 0 Not installed (0603) C50 TDK C1608X5R1C105M D3 1 Red LED (0603) 33F 10%, 10V tantalum FB1FB6, FB13 7 0 resistors (0603) C24, C25 2 capacitors (C-case) FB7, FB8 2 0 resistors (1206) AVX TAJC336K010R 0.47F 10%, 10V X7R ceramic FB11, FB12 2 Ferrite beads, 3A (1206) C26 1 capacitor (0603) 3.5mm surface-mount stereo HPJK 1 TDK C1608X7R1C474K headphone jack 0.033F 10%, 10V X7R ceramic USB series B right-angle PC J1 1 C32, C33 2 capacitors (0603) mount receptacle TDK C1608X7R1H333K J2 0 Not installed C36, C37 0 Not installed (0603) JU1JU5 5 2-pin single-row headers 3300pF 10%, 10V X7R ceramic JU6 1 3-pin single-row header C40 1 capacitor (0603) 33H 20%, 1.4A inductors TDK C1608X7R1H332K L1, L2 2 TOKO B1000AS-330M 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.MAX9776 Evaluation Kit Procedure Component List (continued) Do not turn on the power supply until all connections DESIGNATION QTY DESCRIPTION are made: R1, R2, R18 0 Not installed, resistors 1) Visit the Maxim Integrated Products website (www.maxim-ic.com/evkitsoftware) to download the R3, R4 2 22 5% resistors (0603) latest version of the EV kit software, 9776Rxx.ZIP. R7R10 4 27 5% resistors (0603) Save the EV kit software to a temporary folder and R11 1 220 5% resistor (0603) unzip the 9776Rxx.ZIP file. R12 1 470 5% resistor (0603) 2) Install the MAX9776 evaluation software on your R13, R14, R15 3 1.5k 5% resistors (0603) computer by running the INSTALL.EXE program. R16 1 2.2k 5% resistor (0603) The program files are copied and icons are created in the Windows Start Programs menu. R17 1 10k 5% resistor (0603) 3) Make sure the shunts of all jumpers on the MAX9776 R19 1 1k 5% resistor (0603) EV kit are in the following default positions. MAX9776ETJ+ (32 TQFN, 5mm x U1 1 5mm x 0.8mm) JU1: (Open) INA is stereo input U2 1 MAXQ2000-RAX+ (68-pin QFN-EP) JU2: (Open) INB is stereo input 93C46 type 3-wire EEPROM U3 1 JU3: (Open) INC is stereo input (8-pin SO) JU4: (1-2) SDA connected to on-board micro- FTDI FT232BL (TQFP-32L, 7mm x U4 1 controller 7mm) U5 1 MAX8511EXK33+T (SC70-5) JU5: (1-2) SCL connected to on-board micro- controller U6 1 MAX8511EXK25+T (SC70-5) JU6: (1-2) Normal operation Y1 1 16MHz crystal 4) Connect the speaker across FOUT+ and FOUT- Y2 1 6MHz crystal pads. Y3 0 Not installed 5) Connect the positive terminal of the 5V power sup- 6 Shunts ply to the VDD pad and the ground terminal of the 1 PCB: MAX9776 Evaluation Kit+ power supply to the GND pad. USB high-speed A-to-B cable 6) Connect the stereo audio source across the INA1, 1 (1.5m) INA2, and GND pads. 7) Turn on the audio sources, and then turn on the Quick Start power supply. Recommended Equipment 8) Connect the USB cable from the PC to the MAX9776 5V, 1.5A power supply EV kit board. A Building Driver Database window pops up in addition to a New Hardware Found mes- Stereo audio source (i.e., CD player, MP3 player) sage if this is the first time the EV kit board is con- One 4 (or 8) speaker nected to the PC. If you do not see a window that is The MAX9776 EV kit (included with USB cable) similar to the one described above after 30s, remove the USB cable from the MAX9776 EV kit and recon- A user-supplied Windows 98SE/2000/XP PC with a nect it. Administrator privileges are required to install spare USB port the USB device driver on Windows 2000/XP. Refer to Note: In the following section(s), software-related items the TROUBLESHOOTING USB.PDF document are identified by bolding. Text in bold refers to items included with the software if you have any problems directly from the EV kit software. Text in bold and during this step. underlined refers to items from the Windows 98SE/2000/XP operating system. 2 Evaluates: MAX9776