Intersil has developed a highly integrated RF power amplifier using advanced silicon germanium (SiGe) technology. The company says this process allows the HFA3983 power amplifier and detector to deliver improved performance while greatly reducing power consumption. The HFA3983 is one of four chips that comprise Intersil's next generation Prism II WLAN chipset.
The HFA3983 is a 2,4 GHz monolithic power amplifier designed to operate in the un-licensed ISM band. The device features two low-voltage single supply stages, delivering a minimum of +20,6 dBm of power at the 1 dB compression point. The resulting solution effectively delivers a 50% reduction in power consumption over Intersil's first-generation Prism WLAN chipset.
The HFA3983 is suited for a variety of wireless applications including wireless local area networks (WLANs), PCMCIA wireless transceivers, ISM systems including automatic level control (ALC) and TDMA packet protocol radios.
The device also includes a 2,4 GHz power detector with 15 dB of dynamic range and ±1 dB of accuracy. When used in conjunction with an external power sampler-coupling de-vice, an accurate ALC function can be implemented.
For further information about Intersil products contact
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