The center frequency of the VCO is critical for good DPLL performance when using the XOR gate with RC loop filter. If the center frequency, fcenter , of the VCO (i.e., VinVCO = VDD/2) does not match twice the input data rate, the DPLL will lock up at a phase different from /2...
A system includes a digital phase lock loop (PLL) constructed from an all digital circuit implementation and standard cell construction. The digital PLL includes a digital frequency synthesizer and a digital phase detector. The digital frequency synthesizer includes a digital DLL including a plurality ...
Classic paper presenting the concept of a delay-locked loop. [8] C. R. Hogge, Jr., “A Self Correcting Clock Recovery Circuit,” IEEE Journal of Lightwave Technology, vol. LT-3, pp. 1312 1314, December 1985. Paper presenting the “Hogge” phase detector. [9] F. M. Gardner, “C...
网络数字锁相环 网络释义 1. 数字锁相环 通讯专业词汇库... ... digital phase lock 数字锁相Digital Phase Lock Loop数字锁相环DPLLdigital phase shifter 数字移相器 ... doc.mbalib.com|基于2个网页
320MHz Digital Phase Lock LoopDPLLs (Digital Phase Locked Loop) are commonly used in communications systems. As part of an investigation into RFID technology, a DPLL suit- able for low-cost, low-power applications is designed and layed out out in a 0.5碌m CMOS process. It consists of a ...
A macro phase detector responds to large phase deviation between a locally generated signal and a reference signal for actuating a successive frequency approximation register to effect major count alteration in a counter for controlling a digital-to-analog converter and, in turn, a voltage controlled...
Can digital phase-locked loops offer excellent performance with a lower cost of implementation? M.H. Perrott 2 Just Enough PLL Background … What is a Phase-Locked Loop (PLL)? ref(t) out(t) e(t) ref(t) out(t) v(t) e(t) v(t) ref(t) e(t) Phase Analog v(t) Detect Loop ...
A digital Phase-Locked Loop (PLL), comprising a voltage-controlled oscillator (VCO) and a phase meter including a delay line with taps, wherein phase measurements are effected by sending a phase through the delay line and determining the location of this pulse in the delay line at the rate...
The nested digital phase-locked loop (DPLL400) comprises a DPLL (402) and wide bandwidth DPLL (404), respectively generating a first and a second recovered clock signal. 窄带宽起初第一恢复时钟用于使恢复数据定时钟. Initially the narrow bandwidth of the first recovered clock is used to recover ...