[PDF] Top 20 A fully integrated spread-spectrum clock generator by using direct VCO modulation
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A fully integrated spread-spectrum clock generator by using direct VCO modulation
... A Fully Integrated Spread-Spectrum Clock Generator by Using Direct VCO Modulation Yi-Bin Hsieh, Student Member, IEEE, and Yao-Huang Kao, ... See full document
9
A fully integrated spread spectrum clock generator using two-point delta-sigma modulation
... new spread spectrum clock generator (SSCG) using two-point delta-sigma modulation is presented in this ...the modulation bandwidth so that the effect of EMI suppression is ... See full document
4
A Spread-Spectrum Clock Generator With Triangular Modulation
... in a phase-locked loop ...the clock source and the special digital processing circuits to achieve the spread-spectrum function ...brief, a conventional PLL-based clock ... See full document
4
A Low-Power and High-Precision Spread Spectrum Clock Generator for Serial Advanced Technology Attachment Applications Using Two-Point Modulation
... the modulation ratio is less sensi- tive to gain ...the VCO path. This approach makes the output waveform dominated by the divider modulation path and aided by the VCO ... See full document
10
A high performance spread spectrum clock generator using two-point modulation scheme
... 11 Measured spectra of 400MHz output frequency a at non-spread spectrum mode, b of the conventional SSCG with 2.5% spread ratio, and c of the TPDL-SSCG with 2.5% spread ratio... 12 Measu[r] ... See full document
7
A Low-Power and Portable Spread Spectrum Clock Generator for SoC Applications
... employs a novel rescheduling division trian- gular modulation (RDTM) to enhance the phase tracking capability and provide wide programmable spreading ...and spread spec- trum algorithm of ... See full document
5
COMPUTER-SIMULATION OF A DIRECT SEQUENCE SPREAD SPECTRUM CELLULAR RADIO ARCHITECTURE
... Here we consider a spread spectrum cellular radio architec- ture in which the whole service area is divided into cells and each cell is served by a base. A mobile [r] ... See full document
7
Timing Jitter and Modulation Profile Extraction for Spread-Spectrum Clocks
... presents a chip photograph of this paper and its ...is a 0.18-μm complementary metal–oxide–semiconductor (CMOS) with a supply voltage of ...reference clock frequency. The SSCG is a ... See full document
10
A modified code tracking loop for direct-sequence spread-spectrum systems on frequency-selective fading channels
... Because the data-modulated channel es- timator can cope with the time-varying Rayleigh fading effect and the data modulation effect on the error signals, in addition [r] ... See full document
5
A blind joint estimator for multipath diversity and PN timing error in direct-sequence spread-spectrum receivers
... The residual inter-chip interference (ICI) after the modified KMA proposed here, the timing er- ror signals, mean square timing error and mean time to lose lock (MTLL) fo[r] ... See full document
4
Design and implementation of an all-digital QPSK direct-sequence spread-spectrum transceiver IC
... We have integrated the DSSS DEQPSK modulatorldemodulator, the Costas carrier recovery loop, the PN sequence acquisition loop using a full digital matched filter in a sing[r] ... See full document
5
High-performance fully integrated 4 GHz CMOS LC VCO in standard 0.18-μm CMOS technology
... Most of the proposed methods are very difficult, if not impossible, to be integrated into the standard CMOS technology because they are non-standard processing steps. In addition, the front-side etching has ... See full document
4
A fully single-ended GaInP/GaAs HBT micromixer using an integrated active LO balun
... with a single feeding ...status. By turning the switches on or off, either RHCP or LHCP be obtained with the same feeding probe which is located on the diagonal line of the ...and a single ... See full document
4
Spread spectrum multiple-access with DPSK modulation and diversity for image transmission over indoor radio multipath fading channels
... these subbands at the same time in the same channel, the SS-CDMA multiplexing scheme is particularly well suited to subband coding that divides the image informa[r] ... See full document
15
Cryogenic analog-to-digital converters using spread spectrum technology for coherent receivers
... (ADCs) using spread spectrum technology in cryogenic receivers or at warm room temperature for coherent receiver backend ...play a critical role in backend read-out ...that spread ... See full document
10
A Fully Integrated BIST Delta Sigma ADC Using the In-Phase and Quadrature Waves Fitting Procedure
... cost. By taking advantage of the ADCs oversampling feature, a radix- 2 Booth multiplier instead of a parallel multiplier is used to perform the signed ... See full document
11
Performance analysis of noncoherent digital delay locked loops for direct sequence spread spectrum systems with Doppler shift and quantized adaptation
... on a regenerative Markov chain modeling of the code tracking process, the lock-in range, transient response, MSE, and MTLL are evaluated more accurately than the traditional ...in a digital DLL, the ... See full document
11
A Differentially Coherent Delay-Locked Loop for Spread Spectrum Tracking Receivers
... loop, direct sequence spread spectrum, tracking error ...present a code tracking receiver with less complexity, by employing a differentially coherent tech- nique originally ... See full document
3
A clock generator with cascaded dynamic frequency counting loops for wide multiplication range applications
... shows a system block diagram of the cascaded dy- namic frequency counting loops for wide multiplication range ...requires a low-fre- quency DCO 1 and a low-frequency detector. By contrast, the ... See full document
11
Robust Reference Clock Generator Design for DDR Synchronous Devices
... higher clock rates for peripheral ...of a system, e.g., SDRAM. The edges of the reference clock, thus, become deadly important to these high-speed and high-clock ...present a pulse ... See full document
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