IS31AP2010B 3W 5.0V MONO FILTER-LESS CLASS-D AUDIO POWER AMPLIFIER April 2013 GENERAL DESCRIPTION FEATURES The IS31AP2010B is a high efficiency, 3W 5.0V 5.0V supply at THD+N = 10% mono filter-less Class-D audio power amplifier. A low -3W into 4 (Typ.) noise, filter-less PWM architecture eliminates the -1.68W into 8 (Typ.) output filter, reduces external component count, Efficiency at 5.0V system cost, and simplifying design. -85% at 400mW with a 4 speaker Operating in a single 5.0V supply, IS31AP2010B is -88% at 400mW with an 8 speaker capable of driving 4 speaker load at a continuous Less than 1A shutdown current average output of 3W 10% THD+N. The Optimized PWM output stage eliminates LC output IS31AP2010B has high efficiency with speaker load filter compared to a typical Class-AB amplifier. Fully differential design reduces RF rectification In cellular handsets, the earpiece, speaker phone, and and eliminates bypass capacitor melody ringer speaker can each be driven by the Improved CMRR eliminates two input coupling IS31AP2010B. The gain of IS31AP2010B is externally capacitors configurable which allows independent gain control Integrated click-and-pop suppression circuitry from multiple sources by summing signals from each UTQFN-9 package function. RoHS compliant and 100% lead(Pb)-free IS31AP2010B is available in UTQFN-9 packages. It operates from 2.7V to 5.5V over the temperature range APPLICATIONS of -40C to +85C. Wireless or cellular handsets and PDAs Portable DVD player Notebook PC Portable radio Educational toys Portable gaming TYPICAL APPLICATION CIRCUIT VBattery B1,B2 VCC C S 0.1 F C3 1 F OUT+ A3 CIN- RIN- OUT- 0.1 F 150k C1 IN- Differential A1 IS31AP2010B Input IN+ CIN+ RIN+ 0.1 F 150k C2 A2,B3 Shutdown SDB GND Control 100k Figure 1 Typical Application Circuit 1 Lumissil Microsystems www.lumissil.com Rev.B, 04/10/2013 IS31AP2010B PIN CONFIGURATION Package Pin Configuration (Top View) IN+ GND OUT- A1 A2 A3 VDD VDD GND UTQFN-9 B1 B2 B3 IN- SDB OUT+ C1 C2 C3 PIN DESCRIPTION No. Pin Description A1 IN+ Positive audio input. A2, B3 GND Connect to ground. A3 OUT- Negative audio output. B1, B2 VCC Power supply. C1 IN- Negative audio input. C2 SDB Enter in shutdown mode when active low. C3 OUT+ Positive audio output. 2 Lumissil Microsystems www.lumissil.com Rev.B, 04/10/2013