Evaluates: MAX98300 in a WLP 19-5272 Rev 0 5/10 MAX98300 Evaluation Kit (WLP) General Description Features The MAX98300 evaluation kit (EV kit) is a fully assembled S Demonstrates Industry-Leading Quiescent and tested circuit board that uses the MAX98300 filter- Current less Class D amplifier to drive a speaker in portable 1.1mA (PVDD = 5V), 0.78mA (PVDD = 3.7V) audio applications. The EV kit comes with a MAX98300 S Filterless Operation Passes Radiated Emissions IC in a 9-bump, 0.4mm pitch wafer-level-package (WLP). with Up to 60cm of Speaker Cable Designed to operate from a 2.6V to 5.5V DC power S 2.6V to 5.5V Single-Supply Operation supply, the EV kit is capable of delivering 2.6W into a 4I load. The EV kit accepts differential or single-ended S 2.6W Mono Class D Output input signals. S Selectable Gain Control S Differential or Single-Ended Input S Low-Power Shutdown Input S Fully Assembled and Tested Ordering Information PART TYPE MAX98300EVKIT+WLP EV Kit +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION MINIMAL COMPONENTS FOR CUSTOMER DESIGN FB1, FB2 2 0I Q5% resistors (0603) JU1 1 2-pin header 10FF Q20%, 6.3V X5R ceramic C1 1 capacitor (0603) JU2 1 3-pin header Murata GRM188R60J106M JU3 1 4-way 5-pin header Not installed, inductors 0.1FF Q10%, 16V X7R ceramic L1, L2 0 Recommended: C2 1 capacitor (0402) TOKO A916CY-220M Murata GRM155R71C104K OUT+ 1 Standard PCB test point, red 1FF Q10%, 10V X5R ceramic C3, C4 2 capacitors (0402) OUT- 1 Standard PCB test point, white Murata GRM155R61A105K R1, R2 2 100kI Q5% resistors (0402) R3, R4 2 22I Q5% resistors (0603) Mono Class D amplifier (9 WLP) U1 1 Maxim MAX98300EWL+ R5, R6 0 Not installed, resistors (0402) (Top Mark: +AIH) 3 Shunts (JU1, JU2, JU3) OPTIONAL COMPONENTS FOR CUSTOMER PCB: MAX98300 EVALUATION 1 EVALUATION KIT+ (WLP) Not installed, ceramic capacitors C5, C6 0 (0603) 0.22FF Q10%, 25V X7R ceramic C7C11 5 capacitors (0603) Murata GRM188R71E224K 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.MAX98300 Evaluation Kit (WLP) Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com TOKO America, Inc. 847-297-0070 www.tokoam.com Note: Indicate that you are using the MAX98300EWL+ when contacting these component suppliers. Quick Start Detailed Description of Hardware The MAX98300 EV kit features the MAX98300 filterless Recommended Equipment Class D amplifier IC, which is designed to drive a mono MAX98300 EV kit speaker in portable audio applications. The EV kit comes 2.6V to 5.5V, 2A DC supply with a MAX98300 IC in a 9-bump, 0.4mm pitch WLP. The 4I speaker EV kit operates from a DC power supply that provides 2.6V to 5.5V and 2A of current. The EV kit accepts a Mono audio signal source differential or single-ended audio input. The audio input Procedure source is amplified to drive 2.6W into a 4I speaker. The EV kit is fully assembled and tested. Follow Jumper JU1 configures the EV kit inputs for single-ended the steps below to verify board operation. or differential operation. Jumper JU2 enables or disables Caution: Do not turn on the power supply until all the speaker amplifier. The amplifier overall gain can be connections are completed. set between 0dB and +12dB using jumper JU3. The 1) Verify that shunts are installed as follows: EV kit provides a set of differential outputs. The device outputs (OUT+, OUT-) can be connected directly to a JU1: Installed (single-ended input) speaker load without any filtering and up to 60cm of JU2: Pins 1-2 (device enabled) cable. However, filter components can be added to ease JU3: Pins 1-5 (0dB gain) evaluation. See the Output Filtering Options section for 2) Connect the power-supply positive and negative additional information. outputs to the PVDD and PGND PCB pads on the Input Mode EV kit, respectively. Jumper JU1 provides the option to select between a dif- 3) Verify that the audio source output is disabled. ferential or single-ended input mode for the EV kit. See Table 1 for jumper JU1 configuration. 4) Connect the mono audio source between the INPUT+ and INPUT- pads on the EV kit. 5) Connect the speaker across the OUT+ and OUT- Table 1. Input Mode (JU1) test points. SHUNT INPUT- PCB PAD INPUT MODE 6) Set the power-supply output to 5V. POSITION 7) Enable the power-supply output. Single-ended Installed* Connected to PGND input 8) Enable the audio source. Not Connected to a user-supplied Differential 9) Verify that the speaker is playing the audio source installed negative differential input input signal. *Default position. 2 Evaluates: MAX98300 in a WLP