| Citation: |
Yao Jinke, Chi Baoyong, Wang Zhihua. A Novel Low Power ASK Receiver with AGC Loop[J]. Journal of Semiconductors, 2007, In Press.
Yao J K, Chi B Y, Wang Z H. A Novel Low Power ASK Receiver with AGC Loop[J]. Chin. J. Semicond., 2007, 28(3): 337.
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A Novel Low Power ASK Receiver with AGC Loop
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Abstract
We report a low power ASK IF receiver for short-range wireless systems,which includes an AGC loop that compensates the channel attenuation and an ASK detector.A novel current-limited transconductor and feed-forward differential peak detector have been designed to maintain a high compression ratio and fast response for the AGC with lower power consumption.A storage unit with a zero and a feed-forward structure have been introduced into the peak detector to control the damping characteristic of the AGC loop.A rectifier and low-pass filter included in the ASK detector have been integrated into a more compact structure to further lower the power consumption.The simulation results show the feasibility of the proposed technique.-
Keywords:
- CMOS,
- AGC,
- ASK demodulator,
- ASK detector
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