20 24-Charge Pump PLL 23:52 25-Small Signal and Stability Analysis of Type II Order 2 Charge Pump PLL 21:57 26-Problems in Charge Pump PLL - Dead Zone in PFD 13:35 27-Problems in Charge Pump PLL - Reference Spur 23:21 28-Design Procedure for Type-II Order 3 Charge Pump PLL 15:...
A phase locked loop has a charge pump circuit connected through a loop filter to a voltage controlled oscillator, and the charge pump circuit is controlled by a frequency/phase comparator, wherein the charge pump circuit includes a first current mirror circuit responsive to a first control signal...
A high performance fully differential charge pump with reference voltage circuit was proposed to overcome the inevitable disadvantages in the traditional charge pump circuit, including leakage current, charged/discharge current mismatch and the output ripple. The phase errors and the spurious jump were re...
摘要: PROBLEM TO BE SOLVED: To provide a technology to reduce the effect of noise of a charge pump.收藏 引用 批量引用 报错 分享 文库来源 求助全文 CHARGE PUMP, PLL CIRCUIT, SEMICONDUCTOR INTEGRATED 优质文献 相似文献Ultrafast X-ray Science: Structural Transients in Solution We discuss two ...
PROBLEM TO BE SOLVED: To provide a technology to reduce the effect of noise of a charge pump. ;SOLUTION: A charge pump capacitor is formed by combining a plurality of unit capacitor including a 1st unit capacitor where upper electrodes 31, 32 connecting to a 1st terminal of a charge pump...
A charge pump circuit with very short turn-on time is presented for minimizing reference spurs in CMOS PLL frequency synthesizers. In the source switching charge pump circuit, applying proper voltages to the source nodes of the current s... J Sohn,H Shin - 《Journal of Semiconductor Technology...
A technique is disclosed for providing a charge pump circuit for phase locked loop (PLL) to reduce mismatch of up/down currents and feed-through of up/down currents to voltage output. Elimination of feed-through of the input signal may be achieved by using differential switches (Mand M, and...
A conventional CMOS charge-pump circuit consists of two switched current sources that pump charge into or out of the loop filter according to two logical inputs. The mismatch between the charging current and the discharging current causes phase offset and reference spurs in a PLL. We propose a...
Charge pump circuit, PLL circuit with charge pump circuit, and semiconductor integrated circuit with charge pump circuit A charge pump circuit has a first transistor connected to a first power source and having a control electrode to receive a first control signal; a second transistor connected to...
A conventional CMOS charge-pump circuit consists of two switched current sources that pump charge into or out of the loop filter according to two logical inputs. The mismatch between the charging current and the discharging current causes phase offset and reference spurs in a PLL. We propose a...