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