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