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The RF2128 is a medium-power, high-efficiency, linearamplifierIC.ThedeviceismanufacturedonanadvancedGallium Arsenide Heterojunction Bipolar Transistor (HBT)process, and has been designed for use as the final RFamplifier in 2.45GHz ISM applications such as WLANand POS terminals. The part also will function as the finalstage in digital PCS phone transmitters requiring linearamplification operating between 1900MHz and2200MHz, with over 100mW transmitted power, or as thedriver stage for the RF2125 high power amplifier. A sim-ple power down function is included for TDD operation.
RF2128 Maximum Ratings
Parameter
Rating
Unit
Supply Voltage (VCC)
+7.5
VDC
Power Down Voltage (VPD)
+5.5
V
DC Supply Current
125
mA
Input RF Power
+12
dBm
Output Load VSWR
20:1
Operating Case Temperature
-40 to +100
°C
Operating Ambient Temperature
-40 to +85
°C
Storage Temperature
-40 to +150
°C
RF2128 Features
• Single 3.0V to 6.5V Supply • 100mW Linear Output Power • 25dB Small Signal Gain • 30% Efficiency • Digitally Controlled Power Down Mode • 1900MHz to 2500MHz Operation
RF2128 Typical Application
• PCS Communication Systems • 2.5GHz ISM Band Applications •WirelessLANs • Commercial and Consumer Systems • Portable Battery Powered Equipment