Evaluates: MAX9709 19-3916 Rev 1 4/08 MAX9709 Evaluation Kit General Description Features 10V to 22V Single DC Power-Supply Operation The MAX9709 evaluation kit (EV kit) is a fully assembled and tested circuit board that configures the MAX9709 Fully Differential or Single-Ended Inputs Class D amplifier to drive 25W into each of two 8 Fully Differential Outputs speakers in stereo mode, or 50W into a single 4 speak- Drives Up to 2 x 25W into 8 Speakers in er in mono mode. The EV kits speaker outputs can be fil- Stereo Mode terless to minimize the circuit area or can be filtered to Drives Up to 1 x 50W into 4 Speaker in Mono ease evaluation. Mode The EV kit operates from a 10V DC to 22V DC power Selectable Between Spread-Spectrum and Fixed- supply. The MAX9709 EV kit accepts single-ended or dif- Frequency Modulation ferential input signals, and provides fully differential out- Selectable Gains (+22dB, +25dB, +29.5dB, puts. The EV kit provides an option to select between or +36dB) +22dB, +25dB, +29.5dB, or +36dB gains. The MAX9709 EV kit offers an option to select between fixed-frequency Programmable Thermal Flag modulation (FFM) mode or spread-spectrum modulation Shutdown and Mute Control (SSM) mode. Input and Output Clock Sync Signals The MAX9709 EV kit provides a thermal flag that can Thermally Efficient 56-Pin TQFN-EP Package be programmed for eight different thermal thresholds. Fully Assembled and Tested The MAX9709 EV kit can be synchronized with an external clock. Additionally, the EV kit provides a syn- Ordering Information chronous output that allows units to be cascaded and frequency locked in a multiamplifier system. PART TYPE MAX9709EVKIT+ EV Kit +Denotes lead-free and RoHS-compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION MINIMAL COMPONENTS FOR CUSTOMER DESIGN OPTIONAL COMPONENTS FOR CUSTOMER EVALUATION 2.2F 10%, 25V X5R ceramic 10F 20%, 10V X5R ceramic C1, C2, C3 3 capacitors (0805) C4 1 capacitor (0805) TDK C2012X5R1E225K TDK C2012X5R1A106M 47F 20%, 35V tantalum capacitors 1F 10%, 25V X7R ceramic C8, C9 2 (E-case) C5 1 capacitor (0805) AVX TPSE476M035R0200 TDK C2012X7R1E105K 1F 10%, 25V X7R ceramic Not installed, stacked metallized film C12C15, C24 5 capacitors (0805) C6, C7, C35, capacitors 0 TDK C2012X7R1E105K C36 Panasonic ECQV1H103JL recommended 0.01F 10%, 25V X7R ceramic C21 1 capacitor (0402) 100pF 10%, 50V C0G ceramic C10, C11, TDK C1005X7R1E103K 6 capacitors (0603) C16C19 TDK C1608C0G1H101K 0.47F 10%, 10V X7R ceramic capacitor (0603) C22 1 0.1F 10%, 25V X7R ceramic TDK C1608X7R1A474K C25C28 4 capacitors (0805) Murata GRM21BR71E104K 0.1F 10%, 50V X7R ceramic C23 1 capacitor (0603) 0.47F 10%, 25V X7R ceramic TDK C1608X7R1H104K C29, C30 2 capacitors (0805) TDK C2012X7R1E474K R2, R3 2 10k 5% resistors (0603) Class D amplifier (56 TQFN-EP*) U1 1 Maxim MAX9709ETN+ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX9709 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION OPTIONAL COMPONENTS FOR CUSTOMER EVALUATION OPTIONAL COMPONENTS FOR CUSTOMER EVALUATION (continued) (continued) 0.33F 10%, 50V X7R ceramic 30 at 100MHz, 10m DCR, C31C34 4 capacitors (0805) L1 1 5A ferrite bead (0805) Murata GRM219R71H334K TDK MPZ2012S300A 0.68F 10%, 25V X7R ceramic 100 at 100MHz, 50m DCR, C37, C38 2 capacitors (0805) L2L5 4 3A ferrite beads (0603) Murata GRM219BR71E684K TDK MPZ1608S101A 6V, 350mW zener diode (SOT23) Not installed, inductors D1 1 Central Semiconductor CMPZ5233B Sumida CDRH127/LD series L6L9 0 LEAD FREE recommended, see the Output Filtering section JU1, JU2, JU3, 10 3-pin headers JU7JU13 R1, R9 2 10k 5% resistors (0603) JU4, JU5, JU6 3 2-pin headers R5R8 4 18 5% resistors (0805) JU15, JU16, R10, R11 2 9.1 5% resistors (0805) 0 Not installed, 2-pin headers JU17 13 Shunts Not installed, 5-pin header 1 PCB: MAX9709 Evaluation Kit+ JU18 0 Waldom 26-48-1051 recommended *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE AVX Corp. 843-946-0238 www.avxcorp.com Central Semiconductor 631-435-1110 www.centralsemi.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Panasonic Corp. 800-344-2112 www.panasonic.com Sumida Corp. 847-545-6700 www.sumida.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX9709 when contacting these component suppliers. 1) Install a shunt across pins 1-2 of jumper JU1 Quick Start (DV = 5V). DD Recommended Equipment 2) Install a shunt across pins 1-2 of jumper JU2 Before beginning, the following equipment is needed: (SHDN high, EV kit enabled). MAX9709 EV kit 3) Install a shunt across pins 1-2 of jumper JU3 10V to 22V, 5A DC power supply (MUTE high, signal enabled). Audio source (i.e., CD player, cassette player) 4) Install a shunt across jumper JU4 (SYNCIN low, internal clock enabled). Two 8 speakers 5) Install a shunt across jumpers JU5 and JU6 (single- Procedures ended input mode). The MAX9709 EV kit is fully assembled and tested. 6) Install a shunt across pins 2-3 of jumpers JU7 and Follow the steps below to verify board operation. JU8, and pins 1-2 of JU9 (thermal flag set to +120C). Caution: Do not turn on the power supply until all connections are completed. 7) Install a shunt across pins 1-2 of jumpers JU10 and JU11 (switching frequency set to spread-spectrum modulation mode). 2 Evaluates: MAX9709