To ensure the signal integrity over a lossy channel, an analog equalizer and/or a decision-feedback equalizer (DFE) [2-6] are widely adopted in high-speed data transmission. An adaptive analog equalizer or adaptive DFE is also attractive to compensate the frequency-dependent loss due to the different channel lengths and environment variations. Conventionally, a multiple-tap DFE is adopted to co...

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IBIS Algorithmic Modeling Interface (IBIS-AMI) defines two approaches to SerDes modeling and simulation flow: time domain or bit-by-bit simulation for nonlinear and/or time variant (NLTV) model and statistical simulation for linear and time invariant (LTI) model. Statistical simulation has advantages of faster simulation speed and arbitrary low BER floor under linear model assumption. However, ...

Bang-Bang clock and data recovery (BBCDR) circuits are hard nonlinear systems due to the nonlinearity introduced by the binary phase detector (BPD). The specification of the CDR frequency response is determined by jitter tolerance and jitter transfer. In this paper, jitter transfer and jitter tolerance of the second-order BBCDR are characterized by formulating the time domain waveforms. As a re...

Optical switching could enable data center networks to keep pace with the rapid growth of intra-data traffic, however, sub-nanosecond clock and recovery time is crucial enabling optically-switched transport small packet dominated traffic over 90% efficiency. We review clock-synchronized approach recovery, which enables in optically switched networks. then introduce an analytical model mathemati...