Description

This power amplifier (PA) is designed for high-performance 802.11b and 802.11g multi-mode applications such as Mini PCI and PCMCIA for portable devices and access points. The low profile plastic package with internal input matching to 50? and on-chip interstage matching minimizes the PCB board-space and allows simplified integration with very few passive components. The on-chip power detector provides a voltage linear to the output power, while the standby/bias control logic provides power-saving and shutdown options. The PA is realized as a three stage PA with

internal interstage matching and an open-collector output structure.

Features

? Frequency Range 2.4 GHz to 2.5 GHz

? Supply Voltage 2.7V to 3.6V

? 32 dB Power Gain

? 23 dBm Linear Output Power for IEEE 802.11b Mode Operation

? EVM < 2.0 at 19 dBm Output Power for IEEE 802.11g Mode Operation

? On-chip Power Detector with 20 dB Dynamic Range

? Power-down Mode and Biasing Control

? Input and Interstage Matching Fully On-chip

? Low Profile Lead-free Plastic Package QFN16 (3 ×3 ×0.9 mm)

Applications

? IEEE 802.11b DSSS WLAN

? IEEE 802.11g OFDM WLAN

? PC Cards, PCMCIA, Access Points

? 2.4 GHz ISM Band Application