One kind of phase-locked loop (PLL) circuit, wherein the reference signal source (1) and a voltage controlled oscillator (VCO) circuit (3) are respectively output divider circuit (2,4) divide. 提供相位比较器(5)用于输出表示这些信号之间的误差信号。 Providing a phase comparator (5) for ...
[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, “Charge-Pump Phase-Lock Loops,” IEEE Transactions on Communications...
A Low Power and Small Die-Size Phase-Locked Loop Circuit Using Semi-Digital Storage A conventional low-bandwidth Phase Lock Loop (PLL) requires an external capacitor and a big on-chip ripple capacitor. A new PLL architecture is proposed in... M Dietl,P Sareen - 《International Journal of ...
A conventional phase-lock loop circuit is modified for use at microwave frequencies. The modification includes a low-frequency oscillator connected in the phase-lock loop to sweep the voltage- controlled oscillator through the frequency of the incoming signal thereby ensuring that lock-in is achieved...
Loop filter 确保VCO的输入电压 VinVCO 不发生抖动, 防止输出unlock. 我们关心两点: pull-in range 和lock range. The pull-in range,\pm \Delta \omega_P, is defined as the range of input frequencies that the DPLL will lock to. If the center frequency of the DPLL is 10 MHz and the pull-in...
The low-pass filter is the final element in our circuit. If settling time is critical, the loop bandwidth should be increased to the maximum bandwidth permissible for achieving stable lock and meeting phase noise and spurious frequency targets. The narrow-band demands in a communications link ...
A 32kHz-reference 2.4GHz fractional-N nonuniform oversampling PLL with gain-boosted PD and loopgain calibration. IEEE International Solid-State Circuit Conference, 2023, 77 [5] Castoro G, Dartizio S M, Tesolin F, et al. A 9.25GHz digital PLL with fractional-spur cancellation based on a...
A Low Power and Small Die-Size Phase-Locked Loop Circuit Using Semi-Digital Storage A conventional low-bandwidth Phase Lock Loop (PLL) requires an external capacitor and a big on-chip ripple capacitor. A new PLL architecture is proposed in... M Dietl,P Sareen - 《International Journal of ...
A Low Power and Small Die-Size Phase-Locked Loop Circuit Using Semi-Digital Storage A conventional low-bandwidth Phase Lock Loop (PLL) requires an external capacitor and a big on-chip ripple capacitor. A new PLL architecture is proposed in... M Dietl,P Sareen - 《International Journal of ...
A voltage controlled oscillator (8) comprises an LPF charging circuit (11) constituted by connecting a plurality of variable delay circuits (30) in a ring shape and fixing the input voltage to the voltage controlled oscillator (8) at a predetermined high level when operation of the voltage ...