FEATURE
◆ 3.3V Power Supply
◆ Maximum Linear Output Power for 11g usage : +20 dBm ( 54Mbps OFDM 64 QAM )
◆ Small signal gain : 32dB
◆ On-chip input matching
◆ Build-in trap filter
◆ Operation ambient temperature: -40 ~ +85 °C

DESCRIPTION
The RTC6681 power amplifier (PA) is designed to operate in 2.4GHz ISM band, compatible with 802.11b/g/n wireless LAN system with high power, high gain and high PAE. The Amplifier consists of 2 power stages with input matching, inter-stage matching, build-in trap filter to reject local leakage and a power detector for close loop power control operation. For 20 dBm OFDM output power (64QAM, 54Mbps), the PA provides a low EVM (Error-Vector Magnitude) of 3%, and consumes 130mA total DC current. Power gain of 32 dB is obtained with a low quiescent current of 72mA.
The device is packaged in a tiny industry-standard 12-lead surface mount package QFN 2mm x 2mm.