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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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  • [1] Yamaji T, Kanou N, and Itakura T, A temperature-stable CMOS variable-gain amplifier with 80-dB linearly controlled gain range. IEEE J[J].Solid -State Circuits.2002, Vol.37:553-558 [2] Quoc-Hoang Duong, Quan Le, Chang-Wan Kim, and Sang-Gug Lee, A 95-dB linear low-power variable amplifier, IEEE Trans. on Circuits and Systems-I, 2006, 53(8): 1648-1657. [3] Gomez R and Abidi A A. A 50MHz variable gain amplifier cell in a 2um CMOS, Dig. Tech. Papers IEEE Symp. Custom Integr. Circuits conf., 1991, 9.4/1-9.4/3. [4] Huang P, Chiou L Y, and Wang C K. A 3.3V CMOS wideband exponential control variable gain amplifier, Proc. IEEE Int Symp. Circuits Syst.. Monterey, USA, 1998: I-285-I-288. [5] El-Adawya A A, Solimana A M, and Elwan H O. Low voltage fully differential CMOS voltage mode digitally controlled variable gain amplifier[J].Microelectronics Journal.2000, 31(1):139-146 [6] Rijns J J F. CMOS low-distortion high-frequency variable- gain amplifier[J].IEEE J. Solid -State Circuits.1996, 31(7):1029-1034 [7] Li Xuechu, Gao Qinyun, and Qin Shicai. A low-power high-frequency CMOS peak detector. Chinese Journal of Semiconductor, 2006, 10: 1707-1710.
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