Description
The WS1111 is a CDMA (Code Division Multiple Access) and AMPS (advance mobile phone service) Power Amplifier (PA), designed for handsets operating in the 824~849 MHz bandwidth.
The WS1111 features CoolPAM circuit technology that offers state-of-the-art reliability, temperature stability and ruggedness.
Digital mode control of CoolPAM reduces current consumption, which enables extended talk time of mobile devices.
The WS1111 meets stringent CDMA linearity requirements to and beyond 28 dBm output power. The 4 mm x 4 mm form factor 10-pin surface mount package is self contained, incorporating 50ohm input and output matching networks.

FEATUREs
• Good linearity
• High efficiency:
   41% at Pout = 28 dBm
   18% at Pout = 16 dBm
• 10-pin surface mounting package
   (4 mm x 4 mm x 1.4 mm)
• Internal 50Ω matching networks for
   both RF input and output
• CDMA 95A/B, CDMA2000-1X/EVDO

APPLICATIONs
• Digital Cellular (CDMA)
• Analog Cellular (AMPS)