An amplitude-only closed-loop EDGE transmitter using a PA with low AM-PM distortion is presented with a comparable size to existing open loop EDGE PA modules and added closed loop current <2OmA. The complete PA / controller consumes 700mA at 28dBm and <8OmA at 6dBm. RMS EVM is <2.1%, ACPR margins are >5dB, and RX band noise is <-81dBm/100KHz at 20MHz offset. Reflected power amplitude feedback allows the transmitter to meet ORFS / EVM specifications under antenna VSWR as high as 6:1.
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