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MAX2232 - 250mW Power Amplifiers

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 3cell NiCd or a 1-cell Lithium-Ion battery.

Key Features

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

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-1470; Rev 0; 4/99 900MHz ISM-Band, 250mW Power Amplifiers with Analog or Digital Gain Control 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 3cell 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%. The MAX2232/MAX2233 provide 24dB of gain, which is adjustable over a continuous 24dB span via the analog gain-control pin of the MAX2232 or in two 10dB steps via the 2-bit programmable gain-control DAC of the MAX2233.