PFD是什么意思

网络释义

用法例句

An adaptive Phase-Locked Loop (PLL) with a fast settling time and its key blocks including Phase-Frequency Detector (PFD) and charge pump are then proposed and analyzed.

提出并分析了一种自适应的具有快速建立时间的锁相环结构及其关键模块(鉴相鉴频器和电荷泵)。

This article introduces an typical application of HMC440 which is an ultra low phase noise floor phase frequency detector produced by HITTITE.

介绍了HITTITE公司一款具有超低相位噪声基底的鉴频鉴相器HMC440在C波段锁相频率合成器中的应用。

By injecting the compensation current into the passive loop filter during the delay time of the phase frequency detector(PFD),a maximum reduction of the phase noise by about 16dB can be achieved.

通过在鉴频鉴相器中的延迟时段向无源滤波器中注入补偿电流,最大可实现16dB的噪声补偿。

This paper presents a differentail-type phase frequency detector(PFD)of SCL structure.

介绍一种基于场效应管源级耦合逻辑 (SCL)结构的高精度差分型鉴频鉴相器 (PFD)的设计 ,包括构成PFD的SCL结构基本单元———SCL结构D触发器、与非门、倒相器和缓冲单元。

A Design of Tri-state Phase-Frequency Detector;

一种三态鉴频鉴相器的设计

A fast-locking,low-jitter,phase-locked loop (PLL) with a simple phase-frequency detector is proposed.

用简单的鉴频鉴相器结构实现了一个快锁定低抖动的锁相环。

A Novel SEU/SET Hardened Phase Frequency Detector

一种新型SEU/SET加固鉴频鉴相器设计

Design and Research of PFD and CP in Digital TV Tuner;

数字电视调谐器中鉴频鉴相器与电荷泵的研究与设计

Design and Analysis of a Fractional Frequency Synthesizer Based on △-∑ Phase Discriminatior;

基于△-∑鉴相器的分数频率合成器研究

limiter-discriminator detector

限幅-鉴频器检测器

off-tune type discriminator

失谐[电路推挽]式鉴频器

The Applied Research of FM and The Frequency Discriminator Based on LABVIEW

基于LABVIEW的调频器与鉴频器的应用研究

The Design and Research of PFD and CP in High Performance Frequency Synthesizer;

高性能频率合成器中鉴相器和电荷泵的研究与设计

Study of a PZT Servo-controlled PCF Coupling Setup and a Digital Phase-Frequency Detector (PFD) for Femto-second Optical Frequency Comb;

飞秒光梳中PCF光纤耦合装置的PZT伺服控制和数字鉴相/鉴频器（PFD）的研究

The Research of a Fractional Digital Frequency Synthesizer Based on Delta-Sigma Frequency Discriminatior

基于Delta-Sigma鉴频器的分数数字频率合成器的研究

signal discriminator

信号鉴别器single-ended (工作于谐振曲线一侧的)单端鉴频器

FM Noise Measurement System Using Delay Line Discriminator and Its Applications

延迟线鉴频器调频噪声测量系统及其应用

Analyses on the Signal-to-Noise Ratio of the Atomic Discrimination Signal in Rubidium Atomic Frequency Standard

铷原子频标鉴频信号信噪比相关问题分析

Research of Phase Noise Measurement System Based on Equivalent Phase Comparison Frequency

基于等效鉴相频率的相位噪声测量系统的研究

microwave-excited emissive detector

(气相色谱用) 微波激发发射鉴定器

Design and Experimental Research of Single Longitudinal Mode YAG Laser Frequency Discrimination System;

单纵模YAG激光器鉴频系统的设计及实验研究

Investigation of Phase-demodulation and Frequency Stabilization Techniques in Mechanically Dithered Ring Laser Gyroscopes;

机械抖动激光陀螺鉴相解调与稳频技术的研究

This FD method can be used for AFC of the coherent-on-receive system.

这种频率鉴别方法可以用在接收相参系统中的自动频率微调。

Identification of Genes Related to Floral Organ Development in Rice Using DNA Chips;

用DNA芯片鉴定水稻花器官发育相关基因