M/A-COM's AM55-0004 power amplifier/switch integrates a power amplifier and transmit/receive switch in a low cost SSOP package. The power amplifier delivers +24 dBm of linear power with high efficiency and can be operated at supply voltages as low as 2.7 V. It is ideally suited for QPSK or other linearly modulated systems in the 1.8 to 2.0 GHz frequency band.
The power amplifier/switch is fully monolithic and requires only one output capacitor for power match. The T/R switch achieves good insertion loss and isolation without degrading the overall linearity.
The AM55-0004 is ideally suited for final stage power amplification in linear TDD systems. The integrated switch is convenient for duplexing. The AM55-0004 can also be used as a driver stage for high power systems. Typical applications include Japanese PHS systems or PCN/PCS transmit chains. M/A-COM's AM55-0004 is fabricated using a mature 0.5-micron gate length GaAs process. The process features full passivation for increased performance and reliability.
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Operates Over Full PCN/PCS/PHS BandsOperates Over +3 V to +5 V Supply Voltage+24 dBm P1dB Typical at PA Out35% PAE @ P1dB for Linear OperationOn-Chip T/R Switch, Linear Operation to +30 dBmLow Cost SSOP-28 Plastic Package
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Parameter Absolute Maximum
Max. Input Power2 +23 dBm
Operating Voltages2 VDD = 7 V
VGG = -5 V
VDD - VGG = 8 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
1. Exceeding these limits may cause permanent damage.
2. Ambient temperature (TA) = +25°C
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