Joint AGC-equalization algorithm and VLSI architecture for wirelined transceiver designs
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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A new digitally controlled current mode automatic gain control (AGC) circuit is presented. The proposed circuit uses a novel digital control technique to provide a dB-linear gain control. The circuit is based on binary weighted current mirrors leading to a simple structure that is suitable for low voltage low power applications. When used in wireless communication applications, the AGC can effectively combne with the down-conversion mixer. The control range of a single stage AGC is 25dB. Simulation results are included.