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Volume 29 Issue 11
Jan.  2011
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Li Xue-chu, Gao Qing-yun, Qin Shi-cai. The Design of Mixed-Mode AGC[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2791-2794. doi: 10.3724/SP.J.1146.2006.01196
Citation: Li Xue-chu, Gao Qing-yun, Qin Shi-cai. The Design of Mixed-Mode AGC[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2791-2794. doi: 10.3724/SP.J.1146.2006.01196

The Design of Mixed-Mode AGC

doi: 10.3724/SP.J.1146.2006.01196
  • Received Date: 2006-08-14
  • Rev Recd Date: 2007-01-20
  • Publish Date: 2007-11-19
  • A mixed-mode AGC is proposed in this paper. The peak value of the output signal is detected by an analog peak detector. The detected peak is then processed by the following comparator and control logic. The gain of the VGA is controlled by the output of the control logic. The AGC is designed based on 0.25m standard CMOS technology. The supply voltage is 2.5V. The simulation results show that the amplitude of the output signal is 800mV25mV when the input amplitude ranges from 100mV to 1.3V. The THD of the output signal is less than 45dB when the input amplitude is 1V, and the power consumption is 10mW.
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