ISSI IS31AP2010B overview
ISSI IS31AP2010B Series [email protected] Mono Filter-less Class-D Audio Power Amplifiers The IS31AP2010B is a high efficiency, [email protected] mono filter-less Class-D audio pow...
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Manufactured byISSI
Product groupAudio Power Amplifiers
DescriptionISSI IS31AP2010B Series [email protected] Mono Filter-less Class-D Audio Power Amplifiers
OverviewThe IS31AP2010B is a high efficiency, [email protected] mono filter-less Class-D audio power amplifier. A low noise, filter-less PWM architecture eliminates the output filter, reduces external component count, system cost, and simplifying design.Operating in a single 5.0V supply, IS31AP2010B is capable of driving 4Ω speaker load at a continuous average output of 3W@10% THD+N. The IS31AP2010B has high efficiency with speaker load compared to a typical class- AB amplifier.In cellular handsets, the earpiece, speaker phone, and melody ringer speaker can each be driven by the IS31AP2010B. The gain of IS31AP2010B is externally configurable which allows independent gain control from multiple sources by summing signals from each function.IS31AP2010B is available in UTQFN-9 packages. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C.
Key Features5.0V supply at THD+N = 10%―3W into 4Ω (Typ.)―1.68W into 8Ω (Typ.) Efficiency at 5.0V―85% at 400mW with a 4Ω speaker―88% at 400mW with an 8Ω speaker Less than 1μA shutdown current Optimized PWM output stage eliminates LC output filter Fully differential design reduces RF rectification and eliminates bypass capacitor Improved CMRR eliminates two input coupling capacitors Integrated click-and-pop suppression circuitry UTQFN-9 package RoHS compliant and 100% lead(Pb)-free
Typical ApplicationsWireless or cellular handsets and PDAs Portable DVD player Notebook PC Portable radio Educational toys Portable gaming
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Audio Power Amplifiers
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