An architecture for a time interpolation circuit with an rms error of 25 ps has been developed in a 0.7m CMOS technology. It is based on a delay locked loop (DLL) driven by a 160-MHz reference clock and a passive RC delay line controlled by an autocalibration circuit. Start-up calibration of the RC delay line is performed using code density tests (CDT). The very small temperature/voltage depend...

This paper describes a 1.6GHz clock synthesizer which employs a delay locked loop (DLL) to generate multiple phases that are combined to produce the desired output clock frequency. A self correcting circuit ensures that the DLL arrives at the correct locked state irrespective of its power-up state or following either a wide variation in the input reference clock frequency or missing pulses in t...

The influence of code synchronization errors on the performance of direct-sequence spread-spectrum (DS/SS) communication systems is investigated. Insight is gained in the degradation of some basic performance parameters due to the tracking bias of a noncoherent delay lock loop (DLL). The performance parameters investigated are the bit-error probability, throughput and delay. Numerical results s...

Under 500ps Yong-Bin Kim Tom Chen Department of Electrical Engineering Colorado State University Abstract This paper presents a variable delay line DLL circuit implemented in a 0.8 m CMOS technology. A phase detector and two charge pump circuits calibrate the delay per stage of the delay line using push-pull type clock synchronization scheme. The delay line can be programmed 6 to 18 stages. The...

Abstract How can we leverage digital technologies to enhance language learning and bilingual representation? In this era, our theories practices for the teaching of second languages (L2) have lagged behind pace scientific advances technological innovations. Here outline approach (DLL) L2 acquisition representation, provide a theoretical synthesis analytical framework regarding DLL's current fut...

Many problems are naturally expressed using CNF clauses and boolean cardinality constraints. It is generally believed that solving such problems through pure CNF encoding is inefficient, so many authors has proposed specialized algorithms : the pseudo-boolean solvers. In this paper we show that an appropriate pure CNF encoding can be competitive with these specialized methods. In conjunction wi...

All insect legs are structurally similar, characterized by five primary segments. However, this final form is achieved in different ways. Primitively, the legs developed as direct outgrowths of the body wall, a condition retained in most insect species. In some groups, including the lineage containing the genus Drosophila, legs develop indirectly from imaginal discs. Our understanding of the mo...

In this paper, for the wireless network, wearable device, and Internet of Things (IoT) markets, a delay-locked loop (DLL) is used to implement accurate multiplication reference clock frequency various applications through an edge combiner (EC). A simpler structure more sensitive process, voltage, temperature (PVT), so DLL complements itself quickly in feedback system improves stability final ou...

Degos-like lesions (DLL) have been associated with connective tissue diseases. Till date only twelve cases of systemic lupus erythematosus (SLE) DLL published. We describe a rare case SLE leg ulcers and DLL. A 23-year-old male presented malar rash, photosensitivity, ulcers, joint pain, oral altered sensorium dyspnea. Cutaneous examination also revealed atrophic, porcelain-white scars over body ...