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Verification of Bit-Error Rate in Bang-Bang Clock and Data Recovery Circuits
White Paper High speed serial data links are expected to transmit data at very high rates with very high fidelity. Today speeds approaching 10 Gb/s are becoming common with 40 Gb/s on the horizon. Typically, a maximum Bit-Error Rate (BER) of 10 -... [29 Aug 2009]
A 200-Mbps 2-Gbps Continuous-Rate Clock-and-Data-Recovery Circuit
White Paper To receive the data with different bit rates over a wide range without the harmonic-locking issue, two kinds of Clock-and-Data-Recovery (CDR) circuits existed in literature. The retiming... [29 Aug 2009]
A Wide-Tracking Range Clock and Data Recovery Circuit
White Paper SCALING of CMOS technology has progressed relentlessly for the past several decades and brought unprecedented benefits to digital Integrated Circuits (ICs). In order for the improvements of individual ICs to benefit the... [29 Aug 2009]
Jitter Tolerance Analysis of Clock and Data Recovery Circuits Using Matlab and VHDL-AMS
White Paper In the scope of the development of a complete top-down design flow targeting clock and data recovery circuits for high-speed data links, the paper presents two methods to analyze the jitter tolerance of... [22 Oct 2008]
A Novel Architecture for VLIW Processor
White Paper This paper aims at designing a low power Very Long Instruction Word (VLIW) processor with built in FFT processor, which uses single clock frequency. Not much attention has been given to the power required to drive these... [22 Oct 2008]
Simulation Model of Digital Clock and Data Recovery for Strongly Disturbed Signals
White Paper The paper describes VHDL-AMS simulation model of a digital link (with a signal source) together with "Software" clock and data recovery module and common recovery circuit incorporating a PLL. All simulations were... [22 Oct 2008]
Modeling of Jitter in Bang-Bang Clock and Data Recovery Circuits
White Paper Clock and Data Recovery (CDR) circuits incorporating bang-bang (binary) Phase Detectors (PDs) have recently found wide usage. In contrast to their linear counterparts, bang-bang PDs relax the speed and... [22 Oct 2008]
A Multiple-Rotating-Clock-Phase Architecture for Digital Data Recovery Circuits Using Verilog-A
White Paper This paper presents an oversampling Data Recovery (DR) architecture using Verilog-A that employs a novel Multiple-Rotating-Clock-Phase (MRCP) concept for its operation. Multiple rotating clock phases,... [22 Oct 2008]
A 1O-Gb/s CMOS Clock and Data Recovery Circuit
White Paper Clock and Data Recovery (CDR) circuits operating in the 1O-Gb/s range have become attractive for the optical fiber backbone of the Internet. The circuit produces a 5-GHz clock with an... [22 Oct 2008]
Open-Loop Clock and Data Recovery Systems
White Paper CDR circuits typically use PLLs, but their complexity presents several design challenges : the input data stream is random and is usually in Non-Return-to-Zero (NRZ) data format, and little energy exists at the... [22 Oct 2008]
Designing Bang-Bang PLLs for Clock and Data Recovery in Serial Data Transmission Systems
White Paper Clock recovery using Phase-Locked Loops (PLL) with binary (bang-bang) or ternary-quantized phase detectors has become increasingly common starting with the advent of fully monolithic Clock and Data... [07 Oct 2008]
Back to the drawing board for Intel roadmaps
News The benefits of increasing clock frequency are beginning to be offset by the liabilities of heat dissipation," Brookwood said. They won't be pushing as hard on clock frequency as they did in the past. [10 May 2004]
Peter Cochrane's Uncommon Sense: Circuit or packet, clean or dirty?
Comment The clock is ticking for an industry born of the 19th century. It was the need for computer communication that created the packet switched philosophy to obviate the need for 100 per cent dedicated circuits. [14 May 2003]
Peter Cochrane's Uncommon Sense: G force
Comment Not so long ago a carriage clock was a big, cumbersome, expensive, relatively inaccurate and unreliable item of great value. Instead of 1,000s of transistors, capacitors, resistors and wire leads mounted on printed... [28 Nov 2002]
