When coincidence between horizontal sync and oscillator frequency is detected, the search mode is replaced by a normal PLL operation.
当水平的同步和振动者频率之间的巧合被发现的时候,搜寻模态被正常PLL操作代替。
Depending on the oscillator frequency of the target system and the baudrate which should be used, it might be necessary to change the reload value of a baudrate timer.
根据不同的振荡频率的指标体系和波特率应该使用,也许有必要改变增值的波特率定时器。
The phase detecting error caused by local oscillator frequency drift and non-synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time.
该方法可以有效的消除因本振信号频率漂移及闸门信号与被测信号的非同步引起的测相误差,同时提高了测量速度。
Frequency Synthesizer (FS) is a very important block, which is used in a wireless transceiver as a local oscillator for frequency translation and channel selection.
频率合成器是射频收发机中非常重要的模块,是用于频率转换和频道选择的本地振荡源。
The' main factors resulting in local frequency tracking error are analyzed based on the principles of the tracking local oscillator for frequency agile radars of rotary tuning magnetron type.
本文从旋转变频磁控管式频率捷变雷达的本振频率跟踪原理出发,分析了产生本振频率跟踪误差的主要因素。
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器,也可以作为数字电路的基准时钟信号,因此得到了广泛的应用。
Quartz crystal oscillator is one of the most stability frequency references.
石英晶体振荡器是一种非常重要的频率源。
To use a crystal unit as an oscillator, its oscillated frequency is required to be stable against temperature variations.
石英晶体作为谐振器在使用时,要求其谐振频率在温度发生变化时保持稳定。
The maximum frequency of RC-bridge oscillator is 16.67% of gain bandwidth product of amplifier analyzed based on a first-order single time constant lowpass function model.
运用一阶单时间常数低通函数模拟运算放大器的开环增益,对RC桥式振荡电路进行线性分析,得出最大振荡频率为运算放大器增益带宽积的16.67%。
The loop design of the passive atomic clock is discussed to accomplish the transfer of the frequency accuracy and stability from the atomic resonance to the locked oscillator.
本文就被动型原子钟的环路设计讨论了原子谐振器频率准确度和稳定向锁定晶振的传递问题。
In this case, the crystal oscillator can not provide a stable clock frequency, which results in the abnormality of the device.
在这种情况下,晶体振荡器就不能为设备提供稳定的时钟频率,导致设备工作异常。
Programmable hardware timing was used in design of microsecond synchronizer based on ISA bus, after pulse generated by oscillator was divided frequency, it was sent to 8254 to count.
基于IS A总线的微秒级同步器采用可编程硬件定时,由晶振发出脉冲经分频后送入8254计数。
According to its characteristic, a high accuracy digital frequency supply oscillator has been designed using FPGA.
根据其特性,利用FPGA设计了高准确度的数字频率信号源。
The frequency response of the drive-direction oscillator has two resonant peaks and a flat region between the peaks.
陀螺驱动频率响应曲线有两个谐振尖峰,在两峰值之间存在一个较平坦的区域。
In this paper the designing method for crystal oscillator in low noise and widely stable frequency scope is presented and the principle chart is given.
本文主要论述了低噪声、宽稳频范围的晶体振荡器的设计方法,给出了设计的原理框图,通过实例介绍了振荡电路的设计过程并求出了电路参数值。
Functional relations between measured linewidth and optical parameters, structural parameters, oscillator coil and high-frequency rectangular pulse Numbers have been derived in the paper.
推导了被测线宽与光学性能参数,结构参数,振荡频率以及高频矩形脉冲数之间的函数关系式。
An. integrated MOS ring oscillator pressure sensor with silicon box structure, having frequency as output is reported.
本文报道了一种硅盒结构的、具有频率输出的集成MOS环振式压力传感器。
In order to improve the frequency stability of the frequency modulation circuit and the crystal oscillator, using the temperature compensation circuit is extremely effective method.
为了提高调频电路和晶体振荡器的频率稳定度,采用温度补偿电路是一种极其有效的方法。
The transceiver consists of a fully integrated frequency synthesizer, a power amplifier, a crystal oscillator and a modulator.
芯片内置频率合成器、功率放大器、晶体振荡器和调制器等功能模块。
The third chapter introduces the harmonic oscillator model, normal mode vibration types and frequency characteristics of infrared spectra.
第三章介绍了红外光谱的谐振子模型、简正振动类型和频率特征。
High temperature oscillator, divider and inverter produce logic square wave for working frequency so that precise frequency and stable temperature are achieved.
用高温晶体震荡器、分频器和反向器形成新的工作所需的工作频率逻辑方波,以提高工作频率精度和温度的稳定性;
Voltage controlled crystal oscillator (VCXO) plays an important roll in the atomic frequency standard.
压控晶体振荡器是原子频标的重要组成部分。
Bases on the IIFM technique, the principle and method to measure the local oscillator tracking accuracy of frequency - agile radar is put forward in this paper.
在介绍瞬时中频测试技术的基础上,介绍利用瞬时中频测试技术对捷变频雷达本振跟踪精度进行测试的原理和方法。
The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.
同时也提出了热跟踪后本振频率跟踪误差项。分析前者,可以决定热跟踪电路应予修正的频率范围,而后者则是跟踪本振最终的误差。
This paper discusses the causes for limiting the enlargement of frequency deviation of voltage controlled crystal oscillator and methods for enlarging the frequency deviation.
首先讨论了限制压控晶体振荡器频偏扩展的原因,和扩展频偏的方法。
Using PLL synthesis technology such as frequency multiplication and frequency division, may obtain the multi-frequencies, the high stable oscillator signal output.
利用锁相环的倍频、分频等频率合成技术,可以获得多频率、高稳定的振荡信号输出。
In this way, the single oscillator circuit part (310) and the single induction heating coil (200) are used to effectively induction heat the object (201) by means of the dual frequency resonance.
通过一个振荡电路部分(310)采用一个感应加热线圈(200)以两个频率进行谐振对被加热物体(201)进行高效率的感应加热。
This paper introduces a method to realize frequency control of a noncoherent frequency-agility adaptive radar by using frequency setting and waiting, digital local oscillator and micro-processor.
介绍了采用置频等待、数字本振及微处理机技术实现非相参捷变频自适应雷达频率控制的方法。
This paper introduces a method to realize frequency control of a noncoherent frequency-agility adaptive radar by using frequency setting and waiting, digital local oscillator and micro-processor.
介绍了采用置频等待、数字本振及微处理机技术实现非相参捷变频自适应雷达频率控制的方法。
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