Evaluate: MAX9723A/MAX9723B/MAX9723C/MAX9723D 19-0662 Rev 0 11/06 MAX9723D Evaluation Kit/Evaluation System General Description Features Single 1.8V to 3.6V Power-Supply Operation The MAX9723D evaluation kit (EV kit) is a fully assem- bled and tested PCB that evaluates the MAX9723 60mW Stereo DirectDrive Headphone Outputs TM stereo DirectDrive headphone amplifier with (16 , V = 3V) DD 2 BassMax, volume control, and I C. The MAX9723D EV System Command Module: USB Interface kit operates from a single 1.8V to 3.6V power supply, (CMODUSB+) or Serial Interface (CMOD232+) and is capable of delivering 60mW into a 16 load. Windows 98SE/2000/XP-Compatible Evaluation The MAX9723D evaluation system (EV system) includes Software a MAX9723D EV kit, Windows 98SE/2000/XP-compati- Evaluates the MAX9723A/MAX9723B/MAX9723C ble software, and a Maxim system command module. (with IC replacement) The softwares graphical user interface (GUI) allows Fully Assembled and Tested 2 easy control of the MAX9723Ds I C interface, adjusting settings such as BassMax and volume. Ordering Information Order the complete EV system (MAX9723DEVC- MODU+ or MAX9723DEVCMOD2+) for a comprehen- PART TYPE INTERFACE sive evaluation of the MAX9723A/MAX9723B/ 2 User-supplied I C MAX9723C/MAX9723D using a PC. Order the EV kit MAX9723DEVKIT+ EV kit interface (MAX9723DEVKIT+) if the CMODUSB+ or CMOD232+ system command module has already been purchased CMODUSB+ USB MAX9723DEVCMODU+ EV system with a previous Maxim EV system, or for custom use in interface board other microcontroller-based (C) systems. CMOD232+ RS-232 MAX9723DEVCMOD2+ EV system The EV kit comes with the MAX9723DETE+ installed. serial-interface board Contact the factory for free samples of the pin-compati- +Denotes a lead-free and RoHS-compliant EV kit. ble MAX9723A/MAX9723B/MAX9723C to evaluate Note: The MAX9723D EV kit software is included with the these parts. MAX9723D EV kit, but is designed for use with the complete EV system. The EV system includes a Maxim system command Windows is a registered trademark of Microsoft Corp. module (CMODUSB+ or CMOD232+) and the EV kit. If the Windows software will not be used, the EV kit board can be pur- chased without the Maxim system command module. Component List MAX9723DEVCMODU+ MAX9723DEVKIT+ PART QTY DESCRIPTION DESIGNATION QTY DESCRIPTION M AX9723DE V KIT+ 1 MAX9723D EV kit 0.1F 10%, 16V X7R ceramic capacitors (0603) System command module C1, C9, C10 3 CMODUSB+ 1 TDK C1608X7R1C104K (USB serial interface) Murata GRM188R71C104K 1F 10%, 10V X7R ceramic MAX9723DEVCMOD2+ capacitors (0603) C2, C3, C6 3 TDK C1608X7R1A105K PART QTY DESCRIPTION TDK C1608X7R1C105K M AX9723DE V KIT+ 1 MAX9723D EV kit Murata GRM188R61A105K System command module CMOD232+ 1 0.47F 10%, X7R ceram i c (RS-232 serial interface) cap acitor s ( 06 03) TDK C 1608X 7R1A474K (10 V) C4, C5 2 M ur ata G RM1 88R71E 474KA12D ( 25V) M ur ata G RM1 88R71C 747KA88 (16 V ) Kemet C06 03C 474K9RAC 7867 (6. 3V) 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.MAX9723D Evaluation Kit/Evaluation System Component List (continued) Component Suppliers MAX9723DEVKIT+ SUPPLIER PHONE WEBSITE DESIGNATION QTY DESCRIPTION Keystone 800-221-5510 www.keyelco.com J1 1 2 x 10 right-angle receptacle Murata 770-436-1300 www.murata.com JU1, JU2, JU3 3 3-pin headers TDK 847-703-6100 www.component.tdk.com Note: Indicate that you are using the MAX9723D when 3.5mm stereo jack contacting these component suppliers. PJ1 1 (SMT, lead free, and RoHS) CUI Inc. SJ-3523-SMT MAX9723D EV Kit Files 10k 1% resistors (0603) R1, R2 2 lead free FILE DESCRIPTION Installs the EV kit files on your 22.1k 1% resistors (0603) INSTALL.EXE R3, R6 2 computer lead free MAX9723V03.EXE Application program 47.5k 1% resistors (0603) R4, R5 2 lead free TROUBLESHOOTING USB. USB driver installation help PDF file MAX9723DETE+ (16-pin TQFN) FTD2XX.INF USB device driver file U1 1 Stereo DirectDrive headphone amplifier UNINST.INI Uninstall the EV kit software 3 Shunts 1 MAX9723D EV kit PCB 2) Install the MAX9723D EV kit software on your com- Quick Start puter by running the INSTALL.EXE program inside Recommended Equipment the temporary folder. The program files are copied DC power supply (3.3V 0.5A) and icons are created in the Windows Start Programs menu. Stereo audio source (e.g., CD player, MP3 player, etc.) 3) Carefully connect the system command module to 32 or 16 headphones the EV kit by aligning the 20-pin connector of the MAX9723D EV system MAX9723D EV kit with the 20-pin header of the MAX9723D EV kit Maxim system command module interface board. Maxim CMODUSB+ or CMOD232+ system 4) Enable the pullup resistors on the system command command module module by making sure the SDA switch and SCL A user-supplied Windows 98SE/2000/XP PC switch (both on SW1) are thrown on. Note: In the following sections, software-related items 5) If using Maxims serial-interface board (CMOD232+), are identified by bolding. Text in bold refers to items connect a 9-pin male-to-female cable from the com- directly from the EV kit software. Text in bold and puters serial port to CMOD232+. CMOD232+ underlined refers to items from the Windows 98SE/ requires a 9V power supply to P1 (DC IN). For regu- 2000/XP operating system. lated 3.3V output voltage, install a shunt across pins 1-2 of J1 on the CMOD232+. If using Maxims USB Procedure interface board (CMODUSB+), connect the A-to-B Follow the steps below to verify board operation. USB cable from the computers USB port to Caution: Do not turn on the power supply until all con- CMODUSB+. CMODUSB+ requires no external nections are complete. power as it is powered from the PC USB port. For reg- 1) Visit the Maxim website (www.maxim-ic.com/evkit- ulated 3.3V output, install a shunt across pins 2-3 of software) to download the most recent version of J1 on the CMODUSB+. the EV kit software, 9723RXX.ZIP. Save the EV kit 6) Ensure that a shunt is placed across pins 1-2 of software to a temporary folder and uncompress the JU3 on the MAX9723D EV kit board. ZIP file. 2 Evaluate: MAX9723A/MAX9723B/MAX9723C/MAX9723D