19-6124 Rev 0 11/11 EVALUATION KIT AVAILABLE MAX98314 Mono 3.2W Class D Amplifier with Integrated Input Coupling Capacitors General Description Features The MAX98314 mono 3.2W Class D amplifier provides S Integrated Input Coupling Capacitors with Class AB audio performance with Class D efficiency. Excellent Linearity This device offers five selectable gain settings (0dB, f = 100Hz (6dB) C 3dB, 6dB, 9dB, and 12dB) set by a single gain-select f = 200Hz (12dB) C input (GAIN). S Low Quiescent Current Active emissions limiting (AEL) edge rate and overshoot 0.95mA at 3.7V control circuitry and a filterless spread-spectrum modu- 1.2mA at 5.0V lation (SSM) scheme greatly reduce EMI and eliminate S Delivers High Output Power at 10% THD+N the need for output filtering found in traditional Class D 3.2W into 4I, V = 5V PVDD devices. 960mW into 8I, V = 3.7V PVDD The ICs low 0.95mA at 3.7V, 1.2mA at 5.0V quiescent S Ultra-Low Noise: 19V current extends battery life in portable applications. S Eliminates Output Filtering Requirement Highly linear, integrated input coupling capacitors (C ) IN Spread Spectrum and Active Emissions Limiting reduce solution size and provide excellent THD+N, PSRR, S Click-and-Pop Suppression and CMRR performance at low frequencies vs. standard S Thermal and Overcurrent Protection Class D amplifiers using external input capacitors. The IC is available in a small 9-bump, 0.3mm pitch WLP S Low Current Shutdown Mode (1.0mm x 1.0mm x 0.80mm) package and is specified S Small, Space-Saving Package over the -40NC to +85NC extended temperature range. Applications Simplified Block Diagram Mobile Phones Portable Audio MAX98314 Notebook Computers C IN MP3 Players CLASS D Netbook Computers MODULATOR C IN AND H-BRIDGE VoIP Phones GAIN CONTROL Ordering Information appears at end of data sheet. For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX98314.related 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.MAX98314 Mono 3.2W Class D Amplifier with Integrated Input Coupling Capacitors Functional Diagram/Typical Application Circuit 2.5V TO 5.5V 0.1F 10F* PVDD A3 SHDN C1 UVLO/POWER CLICK-AND-POP MANAGEMENT SUPPRESSION PVDD MAX98314 A1 OUT- GAIN B3 LOW-EMI DRIVER C3 IN+ PGND CLASS D MODULATOR PVDD C2 IN- A2 OUT+ LOW-EMI DRIVER PGND B1 PGND *SYSTEM BULK CAPACITANCE. Maxim Integrated Products 2