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In this paper, two circuit design techniques for lower electromagnetic emission (EME) are demonstrated based on shaping the supply current: 1) a discrete-time EME-SCR with a digital feedback loop to obtain more EME attenuation in the low frequency range starting from 150 kHz. It achieves maximum 30 dB reduction at high frequency with 60 quiescent current and a 230 pF...
In digital designs, it becomes more and more important to reduce the supply current variations (di/dt noise) they induce in the supply lines. This is due to the fact that steep variations in supply current give rise to EM (electro-magnetic) emission. Hence, integrated circuits with lower emission are greatly demanded, especially in the automotive market. This paper describes several efficient low...
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