General Description
The MAX2406 low-noise amplifier (LNA)/downconverter mixer is designed for use over a wide range of frequencies and is optimized for communications systems operating at a frequency of 1.9GHz. Applications include PWT1900/DCT1900, DCS1800/PCS1900, PHS, and DECT. This device includes an LNA, a downconverter mixer, and a local-oscillator (LO) buffer in a low cost, plastic surface-mount package. At 1.9GHz, the LNA has 2.5dB typical noise figure and a -9.5dBm input third-order intercept point (IP3). The downconverter mixer has a low 9.1dB noise figure and a 4.5dBm input IP3. Image and LO filtering are implemented off-chip for maximum flexibility.

Features
♦ Integrated LNA/Downconverter
♦ 3.2dB Combined Receiver Noise Figure:
    2.5dB (LNA)
    9.1dB (mixer)
♦ -12.5dBm Combined Receiver Input IP3:
    -9.5dBm (LNA)
    4.5dBm (mixer)
♦ LO Buffer
♦ +2.7V to +5.5V Single-Supply Operation
♦ 60mW Power Consumption
♦ Low-Power Shutdown Mode

Applications
    PWT1900/DCT1900
    DCS1800/PCS1900
    PHS/PACS
    DECT