General Description
The MAX2232/MAX2233 low-voltage, silicon RF power amplifiers (PAs) are designed for use in the 900MHz ISM band. They operate from a single +2.7V to +5.5V supply, allowing them to be powered directly from a 3-cell NiCd or a 1-cell Lithium-Ion battery. The devices typically deliver 250mW (+24dBm) of output power at 915MHz from a single +3.6V supply, or 150mW (+22dBm) from a single +2.7V supply. At +24dBm output power, power-added efficiency (PAE) is 44%.

Features
♦ 800MHz to 1000MHz Frequency Range
♦ 250mW (+24dBm) Output Power at 915MHz from +3.6V Supply
♦ +2.7V to +5.5V Single-Supply Operation
♦ 44% Power-Added Efficiency
♦ 24dB Power Gain
♦ 24dB Analog Gain-Control Range (MAX2232)
♦ Three Levels of Digitally Programmed Power Gain in 10dB Steps (MAX2233)
♦ Programmable RF Power Envelope Ramping (MAX2232)
♦ Thermal Shutdown
♦ Programmable Thermal Shutdown Timeout Period
♦ 0.2µA Low-Power Shutdown Mode
♦ Low ∆VWSR in Standby and Shutdown Modes

Applications
    900MHz ISM Band
    Digital Cordless Phones
    Wireless Data
    FM Analog Transmitters
    868MHz European ISM Band