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General Description

The MAX2830 direct conversion, zero-IF, RF transceiver is designed specifically for 2.4GHz to 2.5GHz 802.11g/b WLAN applications.

Features

? 2.4GHz to 2.5GHz ISM Band Operation

? IEEE 802.11g/b Compatible (54Mbps OFDM and 11Mbps CCK)

? Complete RF Transceiver, PA, Rx/Tx and Antenna Diversity Switch, and Crystal Oscillator

??? Best-in-Class Transceiver Performance

??? 62mA Receiver Current

??? 3.3dB Rx Noise Figure

??? -75dBm Rx Sensitivity (54Mbps OFDM)

??? No I/Q Calibration Required

??? 0.1dB/0.35° Rx I/Q Gain/Phase Imbalance

??? 33dB RF and 62dB Baseband Gain Control Range

??? 60dB Range Analog RSSI per RF Gain Setting

??? Fast Rx I/Q DC-Offset Settling

??? Programmable Baseband Lowpass Filter

??? 20-Bit Sigma-Delta Fractional-N PLL with < 20Hz Step Size

??? Digitally Tuned Crystal Oscillator

??? +17.1dBm Transmit Power (5.6 EVM with 54Mbps OFDM)

??? 31dB Tx Gain Control Range

??? Integrated Power Detector

??? Fully Integrated RF Input and Output Matching and DC Blocking

??? Serial or Parallel Gain-Control Interface

??? > 40dB Tx Sideband Suppression Without Calibration

??? Rx/Tx I/Q Error Detection

? Transceiver Operates from +2.7V to +3.6V

? PA Operates from +2.7V to +4.2V

? Low-Power Shutdown Mode

? Small 48-Pin TQFN Package (7mm x 7mm x 0.8mm)

Applications

??? Wi-Fi, PDA, VOIP, and Cellular Handsets

??? Wireless Speakers and Headphones

??? General 2.4GHz ISM Radios