19-5156; Rev 0; 2/10 MAX97200A Evaluation Kit Features The MAX97200A evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX97200A. The MAX97200A is a 20mW Class G headphone amplifier that employs Maxim’s second-generation DirectDriveM technology. S 1.8V Single-Supply Operation The MAX97200A EV kit provides 3dB gain, is powered from a 1.8V single power supply, and includes a shutdown input. The MAX97200A EV kit also evaluates the MAX97200B. Request a free MAX97200B IC sample from the factory when ordering the MAX97200B EV kit. S Low-Power Shutdown Input S 20mW Class G Headphone Amplifier S 3dB Gain S Low-Quiescent Current, 1.15mA at PVIN = 1.8V S Evaluates the MAX97200B (with IC Replacement) S Fully Assembled and Tested Ordering Information PART TYPE MAX97200AEVKIT+ EV Kit +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION C1 C2 C3–C7 QTY 1 1 5 DESCRIPTION DESIGNATION QTY 10FF Q20%, 6.3V X5R ceramic capacitor (0603) Murata GRM188R60J106M TDK C1608X5R0J106M GND, OUTL, OUTR, PVDD, PVSS 5 Test points J1 1 3.5mm stereo headphone jack 0.1FF Q10%, 25V X7R ceramic capacitor (0603) Murata GRM188R71E104K TDK C1608X7R1E104K JU1 1 2-pin header R1 1 10kI Q5% resistor (0603) U1 1 Class G headphone amplifier (12 WLP) Maxim MAX97200AEWC+T — 1 Shunt — 1 PCB MAX97200A EVALUATION KIT+ 1FF Q10%, 10V X7R ceramic capacitors (0603) Murata GRM188R71C105K TDK C1608X7R1C105K DESCRIPTION Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX97200A when contacting these component suppliers. DirectDrive is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Evaluates: MAX97200A/MAX97200B General Description Evaluates: MAX97200A/MAX97200B MAX97200A Evaluation Kit Quick Start Recommended Equipment • 1.8V DC supply • Stereo audio signal source • Pair of stereo headphones Procedure The MAX97200A EV kit is fully assembled and tested. Follow the steps below to verify board operation. Caution: Do not turn on the power supply until all connections are completed. 1) 7) Connect the left channel of the stereo audio source to INL. 8) Connect the right channel of the stereo audio source to INR. 9) Connect the ground of the stereo audio source to GND. 10) Enable the stereo audio source. 11) Enable the power-supply output. 12) Verify that the headphones are playing the audio source signal. Jumper Configuration Verify that shunts are installed as follows: JU1: Installed (device enabled) 2) Set the power-supply output to 1.8V. 3) Disable the power-supply output. 4) Connect the power-supply ground to the GND pad and the power-supply positive output to the VIN pad on the EV kit. 5) Connect the headphones to the stereo headphone jack (J1) provided on the EV kit. 6) Verify that the audio source output is disabled. Headphone Amplifier Shutdown Jumper JU1 enables or disables the headphone amplifier. See Table 1 for jumper JU1 configuration. Table 1. Shutdown Input (JU1) SHUNT POSITION SHDN PIN Connected to VIN AMPLIFIER Installed* Not installed Connected to GND Disabled *Default position. 2 _______________________________________________________________________________________ Enabled MAX97200A Evaluation Kit Evaluates: MAX97200A/MAX97200B Figure 1. MAX97200A EV Kit Schematic _______________________________________________________________________________________ 3 Evaluates: MAX97200A/MAX97200B MAX97200A Evaluation Kit 1.0” Figure 2. MAX97200A EV Kit Component Placement Guide—Component Side 1.0” Figure 3. MAX97200A EV Kit PCB Layout—Component Side 1.0” Figure 4. MAX97200A EV Kit PCB Layout—Layer 2 4 _______________________________________________________________________________________ MAX97200A Evaluation Kit Figure 5. MAX97200A EV Kit PCB Layout—Layer 3 Evaluates: MAX97200A/MAX97200B 1.0” 1.0” Figure 6. MAX97200A EV Kit PCB Layout—Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products 5 Maxim is a registered trademark of Maxim Integrated Products, Inc.