MAX2232EEE+

MAXIM INTEGRATED PRODUCTS  MAX2232EEE+  芯片, 射频放大器

The is a 900MHz ISM-band, 250mW power amplifier with analogue or digital gain control in 16 pin QSOP package. This low voltage, silicon RF power amplifier is designed for use in 900MHz ISM band. It is powered directly from a 3-cell NiCd or a 1-cell Lithium-Ion battery. Device typically delivers 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%. An external capacitor sets RF output power envelope ramp time, reducing spurious emissions during power-up and power-down by providing a gradual change in output power. It feature a low power shutdown mode which typically draws less than 1µA of supply current saving power during "idle slots" in time-division multiple-access TDMA systems. It is used in 900MHz ISM band, digital cordless phones, wireless data, FM analogue transmitters and 868MHz european ISM band.

.

Supply voltage range is 2.7V to 5.5V

.

Operating temperature range from -40°C to 85°C

.

Frequency range from 902MHz to 928MHz, 24dB power gain

.

250mW +24dBm output power at 915MHz from 3.6V supply

.

44% power added efficiency, 24dB analogue gain control range

.

Programmable RF power envelope ramping

.

Thermal shutdown

.

Programmable thermal shutdown timeout period

.

0.2µA low power shutdown mode

.

Low ∆VWSR in standby and shutdown modes