A 4.7-Gb/s Reconfigurable CMOS Imaging Optical Receiver Utilizing Adaptive Spectrum Balancing Equalizer

Nakhkoob, Behrooz; Hella, Mona M.

doi:10.1109/tcsi.2016.2614001

Cited by 8 publications

(10 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The proposed adaptive equalizer has a power dissipation of 18 mW (including IO buffer), which is much less as compared with the power dissipation of 97 mW reported in Nakhkoob and Hella. 13 The performance comparison table of the reported works are shown in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…If the capacitor in the conventional RC-LPF and RC-HPF of Lee 9 is replaced with a variable RC, 13 the adaptive equalizer can be tuned for various data rates. However, the loading effect will not be solved.…”

Section: Hybrid Filtermentioning

confidence: 99%

“…The pass band gain should be below 0 dB, ie, in the order of

- 6

dB, else

R_{l}

will become negative as per which leads to malfunction of the filter

\frac{R_{l}}{2} = \frac{R_{h}}{1 - g_{m 31} R_{h}}

If the capacitor in the conventional RC‐LPF and RC‐HPF of Lee is replaced with a variable RC, the adaptive equalizer can be tuned for various data rates. However, the loading effect will not be solved.…”

Section: Design Of the Proposed Adaptive Equalizermentioning

confidence: 99%

“…9 For tuning the filter to various data rates ( −3dB = 0.28∕T b ), a variable RC is used. 12,13 When these passive RC filters are connected to high-frequency boost (HFB) circuit, an unwanted zero is created in the transfer function of the HFB, due to the series RC effect. To overcome the problem, an active filter is required.…”

Section: Introductionmentioning

confidence: 99%

“…These LPF and HPF are implemented using passive RC components . For tuning the filter to various data rates (

f_{- 3 d B} = 0.28 false/ T_{b}

), a variable RC is used . When these passive RC filters are connected to high‐frequency boost (HFB) circuit, an unwanted zero is created in the transfer function of the HFB, due to the series RC effect.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A closed loop inductorless equalizer with a modified analysis of power comparator behaviour

Talluri

Baghini

2020

Circuit Theory & Apps

View full text Add to dashboard Cite

Inductorless circuits are gaining advantage in radio frequency (RF) and high-speed serial link circuits due to the reduced silicon area. This paper presents an inductorless adaptive analog equalizer using an adaptive hybrid filter comprising integrated low pass and high pass filter. The equalizer, designed and fabricated in 180-nm CMOS technology, is able to adjust the high-frequency boost (HFB) and cutoff frequency of the internal filters depending on the data rate and the channel loss. The presented equalizer operates at data rates more than 4 Gbps in post-layout simulation without electrostatic discharge (ESD) and package parasitics. For the test purposes, the equalizer has been packaged in QFN 64 pin package and hence the measurement results are up to 3.125 Gbps. The measurement results show that the equalizer is able to adapt the HFB for the channel losses as high as 5 dB. Average dissipated power of the equalizer at 3.125 Gbps is 18 mW with 1.8-V supply. After reading this chapter you should be able to understand the merits of the proposed hybrid filter compared with the conventional RC filters in the adaptive equalizer using spectrum balancing technique; theoretical analysis and the impact of short channel effects on the performance of the power comparator; and test results of the adaptive equalizer using the proposed hybrid filter in the spectrum balancing technique. KEYWORDSadaptive equalizer, power comparator analysis, spectrum balancing technique, SerDes applications 777 Int J Circ Theor Appl. 2020;48:777-788.wileyonlinelibrary.com/journal/cta

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Hybrid Filtermentioning

confidence: 99%

“…The pass band gain should be below 0 dB, ie, in the order of