Today’s mobile systems do not require the high output power of the power amplifier (PA) a majority of the time, and consequently, the PA can be bypassed. The new CoolPAM design includes a bypass mode that vastly reduces the amount of current required by the PA, thus increasing talk time. This innovation will serve to significantly improve the performance of handsets in CDMA and W-CDMA applications.
Avago’s CoolPAM power amplifiers provide the kind of extended on time that end users expect even as handsets begin to incorporate demanding functions such as TV viewing. CoolPAM technology significantly reduces battery power consumption, allowing mobile handsets to run cooler without the additional design time or expense of a DC/DC converter. CoolPAM power amplifiers are already proven in handsets from leading manufacturers in Korea.