MAX2232, MAX2233 900MHz ISM-Band, 250mW Power Amplifiers With Analog Or Digital Gain Control

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%.
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. An external capacitor sets the RF output power envelope ramp time, reducing spurious emissions during power-up and power-down by providing a gradual change in output power MAX2232 .
The MAX2232 MAX2233 feature a low-power shutdown mode, which typically draws less than 1A of supply current, saving power during "idle slots" in time-division multiple-access (TDMA) systems. The VSWR of the RF input in shutdown mode relative to normal operation is 1.2:1. The devices also feature a thermal shutdown function, enabling the PA to protect itself from excessive temperature conditions that could damage the IC. A capacitor to ground limits thermal cycling by setting a thermal shutdown timeout period.
The MAX2232 MAX2233 are available in a space-saving, thermally enha 883 nced 16-pin power-QSOP (PQSOP) package.
By Maxim Integrated Products
MAX2232 's PackagesMAX2232 's pdf datasheet

MAX2232 Pinout, Pinouts
MAX2232 pinout,Pin out
This is one package pinout of MAX2232,If you need more pinouts please download MAX2232's pdf datasheet.

MAX2232 Application circuits
MAX2232 circuits
This is one application circuit of MAX2232,If you need more circuits,please download MAX2232's pdf datasheet.

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