Title :
A Switched Decoupling Capacitor Circuit for On-Chip Supply Resonance Damping
Author :
Gu, Jie ; Eom, Hanyong ; Kim, Chris H.
Author_Institution :
Minnesota Univ., Minneapolis
Abstract :
A low power switched decoupling capacitor circuit is proposed to suppress on-chip resonant supply noise. Compared to previous analog techniques, the proposed digital implementation achieves a 9X reduction in quiescent power with improved tolerance to PVT variation and tuning capability for optimal switching threshold. Measurements from a 0.13 mum test chip show an 11X boost in effective decap value and a 9.8 dB suppression in resonant supply noise by using the proposed circuit.
Keywords :
CMOS digital integrated circuits; circuit resonance; circuit tuning; damping; integrated circuit noise; low-power electronics; switched capacitor networks; CMOS process; PVT variation; digital implementation; effective decap value; low power switched decoupling capacitor circuit; on-chip resonant supply noise suppression; on-chip supply resonance damping; optimal switching threshold; quiescent power reduction; size 0.13 mum; tolerance analysis; tuning capability; Circuit noise; Circuit optimization; Circuit testing; Damping; Noise measurement; Power capacitors; RLC circuits; Resonance; Switched capacitor circuits; Switching circuits;
Conference_Titel :
VLSI Circuits, 2007 IEEE Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-4-900784-05-5
Electronic_ISBN :
978-4-900784-05-5
DOI :
10.1109/VLSIC.2007.4342684
