![]() This study provides a comprehensive review of decision feedback equalisation (DFE) for multi-giga-bit-per-second (Gbps) data links. The PAM4 receiver fabricated in 28-nm CMOS technology achieves bit-error-rate (BER) better than 1E-12, and energy efficiency of 1.1 pJ/b at 60 Gb/s, measured over a channel with 8.2-dB loss at Nyquist. With the 2-tap direct DFE enabled by the proposed slicer, loop-unrolling and inductor-based bandwidth enhancement techniques, which can be area/power intensive, are not necessary at high data rates. A direct DFE in a PAM4 receiver is made possible with the proposed slicer by having rail-to-rail digital feedback signals available with reduced delay, and accordingly relaxing the settling time constraint of the summer. The proposed slicer is designed for the purposes of improving the clock-to-Q delay as well as the output signal swing. A CMOS track-and-regenerate slicer is proposed and employed in the PAM4 receiver. This article describes a 4-level pulse amplitude modulation (PAM4) receiver incorporating continuous time linear equalizers (CTLEs) and a 2-tap direct decision feedback equalizer (DFE) for applications in wireline communication. At a data rate of 56-Gbps, it can compensate for up to 20.17dB loss and achieve a bit error rate < 1E-10 with a power efficiency of 4.75 pJ/bit. The PAM-4 receiver prototype is fabricated in a 65nm CMOS process. Moreover, the first tap feedback signals are directly tapped from the output of the DCMLC, allowing the first tap feedback current to initiate 0.5UI before the decision clock. Compared with the traditional CMLC, the DCMLC reduces the clock to Q delay by 36%, which allows the implementation of a 4-tap direct DFE. The DCMLC, which adopts dynamic logic, breaks the trade-off between the bandwidth and the clock to Q delay in the traditional current-mode logic comparator (CMLC). A dynamic current-mode logic comparator (DCMLC) is proposed and employed in the DFE. Thanks to its versatility and high skill ceiling, users can rely on this app to deliver.This paper presents a four-level pulse amplitude modulation (PAM-4) receiver that incorporates a continuous time linear equalizer, a variable gain amplifier, a phase interpolator-based clock and data recovery, and a 4-tap direct decision feedback equalizer (DFE) for moderate channel loss applications in wireline communication. In conclusion, PrusaSlicer is a very intriguing program, allowing for a lot of customization. Thanks to the available presets, though, novice users don't have to change anything. Of course, other ways to optimize the process are also open to you: printer-specific settings, such as changing the filaments, go very in-depth. Timing and other thingsĪnother handy feature greets you just before sending the model to the printer: upon prompting to slice the render, the program will give you a time estimate, informing you of how long each of the processes would take.įor instance, this way we found out that color transitions can take a while, so if we wanted to print something quicker, using fewer nuances would speed up the process. Moving it up and down would show us how the model would be erected in printing, from start to finish. Essentially, we could change the colors in a very granular manner via the slider next to the Plater. Seeing the models in the 3D view was nice enough, but seeing them in the Preview, which allowed us to change the colors, was one of the highlights in our testing. We were able to make use of the premade models and alter them to fit our preferences, but we could also make our own by adding different shapes into the Plater. While we did not have a 3D printer to materialize the renders, we can say that the process was very smooth, even for beginners like us. Manipulating your 3D models can be done in the Plater tab, where you are free to resize and restructure as you please. The most intriguing thing about this app is how versatile it can be, based on your needs and experience. Printers have gone down in price, while software to manipulate 3D models has been getting increasingly accessible.įollowing that trend, PrusaSlicer looks to welcome both casual and expert users alike, offering multiple, more comprehensive options for the latter, whilst accommodating the former through a simplified, more comprehensible alternative layout. 3D printing used to be a rather arcane process, but it's much more common nowadays.
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