Timing skew compensation technique using digital filter with novel linear phase condition

Asami, Koji; Miyajima, Hiroyuki; Kurosawa, Tsuyoshi; Tateiwa, Takenori; Kobayashi, Haruo

doi:10.1109/test.2010.5699234

Cited by 10 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multiplexers and digital delay filters [5], [6] are used to apply delays of ±4τ , ±2τ ±τ to channel ADC1, ADC2 outputs (here τ can be set to an arbitrarily small value.) We use a digital signal processor to perform cross-correlation, and a digital controller to control the selection signals of the multiplexers.…”

Section: Proposed Methods Of Timing Skew Effect Reductionmentioning

confidence: 99%

“…A high-sampling-rate ADC can be implemented with relatively slow circuitry by using multiple time-interleaved ADCs, (Fig.1) [1][2][3][4][5][6][7], and this approach is widely used in Automatic Test Equipment (ATE) systems. In such an ADC, several channel ADCs operate at interleaved sampling times as if they were effectively a single ADC operating at a much higher sampling rate.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Digital Compensation for Timing Mismatches in Interleaved ADCs

Asami

et al. 2013

2013 22nd Asian Test Symposium

Self Cite

View full text Add to dashboard Cite

This paper describes a digital method of reducing timing mismatch effects in time-interleaved ADCs used in ATE systems: we use cross-correlation among channel ADC outputs to detect channel timing skew, and make successive-approximation adjustments to our proposed linear-phase-digital delay filter to compensate for the timing skew. Simulation results validate the effectiveness of the proposed method. We found that using multitone input signals with cross-correlation of outputs provided a more robust way of detecting timing skew than using a singletone input signal. Since our proposed approach is fully digital, it is reliable, and suitable for fine CMOS implementation.

show abstract

Section: Proposed Methods Of Timing Skew Effect Reductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Digital Compensation for Timing Mismatches in Interleaved ADCs

Asami

et al. 2013

2013 22nd Asian Test Symposium

Self Cite

View full text Add to dashboard Cite

show abstract

“…27). Our digital filter can set its group delay with the arbitrary fine time resolution while it maintains the linear phase characteristics [71,72]; this can be used such as for the timing skew adjustment of the timeinterleaved ADC sampling clocks described above.…”

Section: Digital Filter For Fine Time Delaymentioning

confidence: 99%

How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area

KOBAYASHI

2024

IEICE Trans. Fundamentals

Self Cite

View full text Add to dashboard Cite

This article reviews the author's group research achievements in analog/mixed-signal circuit and system area with introduction of how they came up with the ideas. Analog/mixed-signal circuits and systems have to be designed as well-balanced in many aspects, and coming up ideas needs some experiences and discussions with researchers. It is also heavily dependent on researchers. Here, the author's group own experiences are presented as well as their research motivations.

show abstract

“…Cognitive Radio single-frequency input signal, and the filter coefficients would have to be frequently recalculated, thus increasing the calibration process complexity [42]. Lastly, an additional drawback of this method is that conventional filters do not have enough resolution to tune the group delay in the highest frequency systems, where the calibration precisely has to be more accurate [43]. Thus, designing these filters is an important challenge in their own.…”

Section: Cognitive Radiomentioning

confidence: 99%

Analog‐to‐Digital Conversion for Cognitive Radio: Subsampling, Interleaving, and Compressive Sensing

Oya¹,

Chavero²,

Martı́n-Clemente³

2017

Cognitive Radio

View full text Add to dashboard Cite

This chapter explores different analog-to-digital conversion techniques that are suitable to be implemented in cognitive radio receivers. This chapter details the fundamentals, advantages, and drawbacks of three promising techniques: subsampling, interleaving, and compressive sensing. Due to their major maturity, subsampling-and interleavingbased systems are described in further detail, whereas compressive sensing-based systems are described as a complement of the previous techniques for underutilized spectrum applications. The feasibility of these techniques as part of software-defined radio, multistandard, and spectrum sensing receivers is demonstrated by proposing different architectures with reduced complexity at circuit level, depending on the application requirements. Additionally, the chapter proposes different solutions to integrate the advantages of these techniques in a unique analog-to-digital conversion process.

show abstract

Timing skew compensation technique using digital filter with novel linear phase condition

Abstract: Abstract

Cited by 10 publications

References 10 publications

Digital Compensation for Timing Mismatches in Interleaved ADCs

Digital Compensation for Timing Mismatches in Interleaved ADCs

How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area

Analog‐to‐Digital Conversion for Cognitive Radio: Subsampling, Interleaving, and Compressive Sensing

Contact Info

Product

Resources

About