A 10Gb/s transmitter with multi-tap FIR pre-emphasis in 0.18μm CMOS technology

Li, Miao; Kwaśniewski, T.; Wang, Shoujun; Tao, Yiran

doi:10.1145/1120725.1120992

Cited by 14 publications

(12 citation statements)

References 10 publications

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“…A restriction of most widely implemented FIR filter pre-emphasis transmitters is that the coefficients of the FIR filter have been designed to be either fixed or externally adjustable [4,7,14,15]. Adaptive preemphasis is sought after to automatically adjust filter tap coefficients to provide an easy to use system with high data integrity.…”

Section: Fir Pre-emphasis Filteringmentioning

confidence: 99%

Reducing data dependent jitter utilising adaptive FIR pre-emphasis in 0.18 μm CMOS

Goosen

Sinha

2011

Microelectronics Journal

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Due to advances of technology in multimedia applications in recent years, the demand for high user end bandwidth point to point links has increased significantly. Jitter requirements have become ever more stringent with the increase in high speed serial link data rates. The introduced jitter severely degrades the performance of the high speed serial link. This paper introduces an adaptive FIR pre-emphasis technique as a means to alleviate the problem of limited off-chip bandwidth introducing data dependant jitter. Mathematical as well as SPICE simulation results are presented, together with the implemented integrated circuit layouts of the novel 0.18 μm CMOS implementation. Limited results from the experimentally tested IC are also presented and discussed. The adaptive pre-emphasis technique employed results in a simulated data dependant jitter reduction to less than 12.5 % of a unit interval at a data rate of 5 Gb/s and a modelled 30" FR-4 backplane copper channel.

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Section: Fir Pre-emphasis Filteringmentioning

confidence: 99%

Reducing data dependent jitter utilising adaptive FIR pre-emphasis in 0.18 μm CMOS

Goosen

Sinha

2011

Microelectronics Journal

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“…FIR filter consisting of 20-taps is implemented in CML structure as suggested in [6]. The filtering is established by sequentially convolving the input data stream by the shifted, scaled impulse response of the filter.…”

Section: Transmitter Architecture For Serial Data Communication Amentioning

confidence: 99%

Ultra wideband wireless serial data communication at 10Gb/s in CMOS 90nm

Siddiqui

Kwaśniewski

2008

2008 IEEE-EPEP Electrical Performance of Electronic Packaging

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Abstract-This paper presents a novel transmitter structure serving as a bridge between high-speed serial data and low power ultra wideband (UWB) communication. A current mode logic (CML) based finite impulse response (FIR) structure is used to spectrally shape the data at the rate of 10 Gb/s with 5.36pJ energy/bit consumption in CMOS 90nm technology. Stacked inductors are used for wireless chip-to-chip transmission.

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“…In parallel with the use of advanced signal processing techniques to compress data spectrum, the use of a discretetime symbol-spaced FIR (SSF) filter for pre-emphasis at the transmit side and/or decision feedback equalization (DFE) at the receive side have been widely used to compensate for the channel frequency-dependent loss [5], [6]. However, conventional SSF and DFE only look at bit centers as the optimal sampling points to generate error correction matrices.…”

Section: Introductionmentioning

confidence: 99%

Using bit-edge equalization in highspeed backplane data transmission

Zhang

Kwaśniewski

2008

2008 Third International Conference on Communications and Networking in China

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Abstract-This paper presents an improved bit-edge equalization (BEE) method for mitigating intersymbol interference (ISI) in high-speed backplane applications. Using a least-mean-square (LMS) adaptive algorithm as a receiver (RX) error convergence engine, the proposed BEE method is based on equalizing only the edges of data bits with an adjustment of LMS error derivation points, which in turn changes the error information and affects filter coefficients for pulse amplitude modulation. As a result, the received channel far-end 3-level bit-edge eye diagrams can be optimized. This proposed BEE method employs a conventional symbol-spaced FIR (SSF) filter as transmitter (TX) pre-emphasis for bit-edge equalization. With TX data pre-coding, the received channel far-end 3-level signal to 2-level binary decoding only depends on the current received bit. No error propagation occurs. In this work, the proposed BEE method is compared with the conventional bit-center equalization (BCE) method and the duobinary signaling method. A typical Tyco 34-inch FR4 backplane channel is used as the comparison benchmark. A Matlab script based link simulation tool is used to evaluate the link performance. The simulation results demonstrate that the proposed BEE method is the most effective method for mitigation ISI in relatively high-loss channels.

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A 10Gb/s transmitter with multi-tap FIR pre-emphasis in 0.18μm CMOS technology

Cited by 14 publications

References 10 publications

Reducing data dependent jitter utilising adaptive FIR pre-emphasis in 0.18 μm CMOS

Reducing data dependent jitter utilising adaptive FIR pre-emphasis in 0.18 μm CMOS

Ultra wideband wireless serial data communication at 10Gb/s in CMOS 90nm

Using bit-edge equalization in highspeed backplane data transmission

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