IS31AP2005 2.95W MONO FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER June 2017 GENERAL DESCRIPTION FEATURES The IS31AP2005 is a high efficiency, 2.95W mono 5V supply at THD= 10% Class-D audio power amplifier. A low noise, filter-less - 2.95W into 4 (Typ.) PWM architecture eliminates the output filter, reducing - 1.70W into 8 (Typ.) external component count, system cost, and Efficiency at 5V: simplifying design. - 83% at 400mW with a 4 speaker Operating in a single 5V supply, IS31AP2005 is - 89% at 400mW with an 8 speaker capable of driving 4 speaker load at a continuous Optimized PWM output stage eliminates LC average output of 2.95W with 10% THD+N. The output filter IS31AP2005 has high efficiency with speaker load Fully differential design reduces RF rectification compared to a typical Class-AB amplifier. and eliminates bypass capacitor Integrated pop-and-click suppression circuitry In cellular handsets, the earpiece, speaker phone, and Short-circuit and thermal protect melody ringer can each be driven by the IS31AP2005. The gain of IS31AP2005 is externally configurable DFN-8 (3mm3mm) and MSOP-8 packages which allows independent gain control from multiple RoHS compliant and 100% lead (Pb)-free sources by summing signals from each function. APPLICATIONS The IS31AP2005 is available in DFN-8 (3mm 3mm), MSOP-8 packages. Wireless or cellular handsets and PDAs Portable DVD player Notebook PC Portable radio Educational toys USB speakers Portable gaming TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit with Differential Input Lumissil Microsystems www.lumissil.com 1 Rev. D, 06/02/2017 IS31AP2005 Figure 2 Typical Application Schematic with Single-ended Input Lumissil Microsystems www.lumissil.com 2 Rev. D, 06/02/2017