TY - JOUR
T1 - Design of active shield circuit with automatic tuning scheme
AU - Nicodimus, Retdian Agung
AU - Takagi, Shigetaka
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2005/6
Y1 - 2005/6
N2 - A feedforward-based active shielding technique for digital noise suppression is more preferred for its capability of reducing the noise on the entire area inside the guard ring. In order to compensate for the variation of substrate parameters, an automatic control scheme to tune the gain of the active shield circuit is proposed. Simulation results show the effectiveness of the proposed system in reducing the digital noise regardless of circuit layout. Simulation results also show that noise suppression improvement from passive guard ring to active shield with tuning is 20 dB or one tenth while that from active shield without tuning to active shield with tuning is 12 dB.
AB - A feedforward-based active shielding technique for digital noise suppression is more preferred for its capability of reducing the noise on the entire area inside the guard ring. In order to compensate for the variation of substrate parameters, an automatic control scheme to tune the gain of the active shield circuit is proposed. Simulation results show the effectiveness of the proposed system in reducing the digital noise regardless of circuit layout. Simulation results also show that noise suppression improvement from passive guard ring to active shield with tuning is 20 dB or one tenth while that from active shield without tuning to active shield with tuning is 12 dB.
KW - Active noise cancellation
KW - Active shield circuit
KW - Digital noise
KW - Mixed-signal integrated circuits
KW - Substrate coupling
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U2 - 10.1093/ietele/e88-c.6.1196
DO - 10.1093/ietele/e88-c.6.1196
M3 - Article
AN - SCOPUS:25844528495
VL - E88-C
SP - 1196
EP - 1202
JO - IEICE Transactions on Electronics
JF - IEICE Transactions on Electronics
SN - 0916-8524
IS - 6
ER -