Motorola GM950i

Table of Contents
Theory of Operation 4-iii
12.0 Power AmpliÞer (PA) 5-25W ................................................................... 25
12.1 Power Controlled Stage ............................................................................ 25
12.2 PA Stages ................................................................................................. 26
12.3 Directional Coupler ................................................................................... 26
12.4 Antenna Switch ......................................................................................... 26
12.5 Harmonic Filter.......................................................................................... 27
12.6 Power Control ........................................................................................... 27
13.0 Frequency Synthesis.............................................................................. 28
13.1 Reference Oscillator ................................................................................. 28
13.2 Fractional-N Synthesizer (U3701)............................................................. 28
13.3 Voltage Controlled Oscillator (VCO) ......................................................... 29
13.4 Synthesizer Operation .............................................................................. 29
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