Switched-capacitor (SC) circuits are analog discretetime signal processing circuits. At the front-end of these circuits, the continuous-time input signal has to be transformed into a discrete-time version. In order to optimize the settling speed of the SC circuit by creating step-input settling responses, the input interface circuit has to transform the continuous-time input signal into a unifo...

This article presents a current-mode biquadratic filter and quadrature oscillator circuit based on current differencing transconductance amplifiers (CDTAs). The proposed does not require changing the topology. In addition to low-pass filter, high-pass band-pass sinusoidal signal, has pole frequency that can be controlled independently from quality factor, while oscillation non-interactively. im...

© 2009 Chia-Ming Wu et al. 111 Network-on-chip (NoC) architecture provides a highperformance communication infrastructure for systemon-chip designs. Circuit-switched networks guarantee transmission latency and throughput; hence, they are suitable for NoC architecture with real-time traffic. In this paper, we propose an efficient integrated scheme which automatically maps application tasks onto ...

This paper presents a new mixed-mode thirdorder quadrature oscillator based on new modified current-controlled current follower transconductance amplifier (MCCFTA). The proposed circuit employs one MCCFTA as active element and three grounded capacitors as passive components which is highly suitable for integrated circuit implementation. The condition and frequency of oscillations can be control...

This report describes a level shifter with crowbar current suppression is proposed to achieve simultaneously high switching speed and low power dissipation for high-voltage transducer driving. Unlike prior implementations, the new circuit does not require additional high-voltage supplies nor static power consumption. The prototype switches up to 32 V with only 1.8 V input consuming less than 0....

In this paper, design and realization of a 4.5-5.8 GHz, –Gm LC voltage controlled oscillator (VCO) for IEEE 802.11a standard is presented. The circuit is implemented with 0.35μm SiGe BiCMOS process that includes high-speed SiGe Heterojunction Bipolar Transistors (HBTs). A linear, 1300 MHz tuning range is measured with accumulation-mode varactors. Fundamental frequency output power changes betwe...

In this paper, a decision circuit based on 0.13μm CMOS is presented. It is designed for 40-Gb/s optical communication systems. This decision circuit achieved by master-slave flip-flops (MS-FFs) with opposite clock can operate at a bit rate of 40-Gb/s and beyond. Current-mode logic (CML) is adopted due to the higher speed compared to static CMOS and the robustness against common-mode disturbance...

In this article, a novel circuit, which can function both as quadrature oscillator and universal biquad filter (lowpass, highpass and bandpass functions) is introduced. The features of the circuit are that, working as quadrature oscillator, the oscillation condition and oscillation frequency can be adjusted independently with the input bias currents: functioning as universal biquad filter, the ...

The purpose of this research is the performance improvement CIGS/CdS/ZnO solar cells, while CdS buffer layer too thin. Enhancement photocurrent by decreasing thickness expected from a reduced parasitic absorption at short wavelengths. However, formation pinholes due to too-thin and non-uniform coverage CIGS surface degrades cell reducing fill factor (FF) open-circuit voltage (Voc). This degrada...