Wei-Chun Hsia

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A time-to-digital converter (TDC) plays an important role in time interval measurement. Among various TDC structures, the vernier-based TDC is promising because it can possess high time resolution. However, the oscillators used in the conventional vernier-based TDC require complicated calibration procedure. This makes the TDC difficult in use. In this(More)
This paper presents a system-level simulation technique for the delta-sigma analog-to-digital converters. The integrator in an analog delta-sigma modulator consists of an op amp and the large-signal model of an op amp is nonlinear. Therefore, the conventional linearized system-level simulation of the DSM using only the linear model is not sufficiently(More)
This paper presents a method for designing asymmetric square-root (SR) FIR filters against the effects of jitter-induced interference at the receiver. The proposed method employs the linear programming to design the Nyquist filter coefficients for minimizing the power of the jitter-induced interference. The desired SR filter coefficients are obtained via(More)
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