NCP2890, NCV2890 Audio Power Amplifier, 1.0 W The NCP2890 is an audio power amplifier designed for portable communication device applications such as mobile phone applications. The NCP2890 is capable of delivering 1.0 W of NCP2890, NCV2890 Rf 20 k V p Cs 1 F Ci Ri INM V AUDIO p OUTA INPUT INP 20 k + 390 nF R1 20 k V p 8 R2 300 k 20 k BYPASS + OUTB C 1 F bypass 300 k SHUTDOWN SHUTDOWN CONTROL VIH VM P VM VIL Figure 1. Typical Audio Amplifier Application Circuit with Single Ended Input Rf 20 k V p Cs 1 F Ci Ri + 20 k INM V 390 nF p OUTA AUDIO INP + INPUT Ci R1 Ri V 20 k p 8 20 k 390 nF R2 300 k 20 k Rf 20 k BYPASS + OUTB C bypass 1 F 300 k SHUTDOWN SHUTDOWN CONTROL VIH VM P VM VIL Figure 2. Typical Audio Amplifier Application Circuit with a Differential Input This device contains 671 active transistors and 1899 MOS gates.