General Description
The MAX2235 low-voltage, silicon RF power amplifier (PA) is designed for use in the 900MHz frequency band. It operates directly from a single +2.7V to +5.5V supply, making it suitable for use with 3-cell NiCd or 1-cell Li-Ion batteries. The device delivers +30dBm (1W) typical output power from a +3.6V supply or +28dBm from a +2.7V supply.

Features
♦ 800MHz to 1000MHz Operation
♦ High Output Power at 836MHz
    +32.5dBm at +5.0V
    +30dBm at +3.6V
    +29dBm at +3.0V
    +28dBm at +2.7V
♦ +2.7V to +5.5V Single-Supply Operation
♦ Automatic Power-Up/Power-Down Ramp
♦ Direct On/Off Keying (OOK) without Intersymbol Interference or VCO Pulling
♦ 37dB Power-Control Range
♦ 47% Efficiency
♦ <1µA Supply Current in Shutdown Mode
♦ Small 20-Pin TSSOP Package with Heat Slug

Applications
    900MHz ISM-Band Applications
    Two-Way Pagers
    Analog Cellular Phones
    Microcellular GSM (Power Class 5)
    Wireless Data Networks