PAM8404KGR Diodes Incorporated

A Product Line of Diodes Incorporated PAM8404 3W/CH FILTERLESS STEREO CLASS-D AUDIO AMPLIFIER Description Pin Assignments The PAM8404 is a 3W high efficiency filterless Class-D audio amplifier in 4mmX4mm and 2mmX2mm wafer chip scale (WCSP) packages that requires few external components. Features like 89% efficiency, -63dB PSRR, improved RF-rectification immunity, and very small PCB area make the PAM8404 Class-D amplifier ideal for cellular handset and PDA applications. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the PAM8404. The PAM8404 allows independent gain by summing signals from seperate sources, and has as low as 43V noise floor. PAM8404 is available in QFN 4mmx4mm and WCSP 2mmx2mm packages. Features 3W Output at 10% THD with a 4 Load and 5V Supply Supply Voltage from 2.5V to 5.5V Efficiency Up to 89% Superior Low Noise without Input Few External Components to Save the Space and Cost Short Circuit Protection Thermal Shutdown Space Saving Packages : 2mm X 2mmWCSP 4mm X 4mm Thin QFN Pb-Free Packages Applications LCD Monitor / TV Projector Notebook Computers Portable Speakers Portable DVD Players, Game Machines Cellular Phones/Speaker Phones 1 of 18 November 2012 PAM8404 Diodes Incorporated www.diodes.com Document number: DSxxxxx Rev. 1 - 1 A Product Line of Diodes Incorporated PAM8404 Typical Applications Circuit Pin Descriptions Pin Pin Number Function Name QFN4x4 WCSP2x2 G1 1 B2 Gain Select (MSB) OUTL+ 2 A3 Left Channel Positive Differential Output PVDD 313 A2 Power Supply (Must be Same Voltage as AVDD) PGND 412 C4 Power Ground OUTL- 5 A4 Left Channel Negative Differential Output NC 610 Not Connected SDL 7 B4 Left Channel Shutdown Terminal (active low) SDR 8 B3 Right Channel Shutdown Terminal (active low) AVDD 9 D2 Analog Supply (Must be Same Voltage as PVDD) OUTR- 11 D4 Right Channel Negative Differential Output OUTR+ 14 D3 Right Channel Positive Differential Output G0 15 C2 Gain Select (LSB) INR+ 16 D1 Right Channel Positive Input INR- 17 C1 Right Channel Negative Input AGND 18 C3 Analog Ground INL- 19 B1 Left Channel Negative Input INL+ 20 A1 Left Channel Positive Input 2 of 18 November 2012 PAM8404 Diodes Incorporated www.diodes.com Document number: DSxxxxx Rev. 1 - 1