4. Lock time,Loop Filter的BW越大,Lock time会越小,PLL锁定时间越短。 5. 一般LBW需要<=Fpd/10。 6. Fpd的频率一般正比与压控震荡器VCO的压控灵敏度,就是那个MHz/V,这样当然调节VCO的速度也越快。 7. 由于一个VCO的tuning frequency range不会很宽,所以现在一些频率范围很大的频率合成器,一般都采用多个VC...
CPU启用PLL后,将启动一个定时1500时钟周期的定时器(支持软件配置)。如果定时器溢出后未检测到锁定状态,则会触发对CPU的中断,并向SMU发出警报。 发布于 2023-12-21 10:39・IP 属地广东 内容所属专栏 芯片功能安全 ASIL D芯片功能安全设计 订阅专栏 车规芯片功能安全机制IP 芯片功能安全 ISO26262...
相位噪声(Phase Noise):衡量输出信号相位稳定性的指标,直接影响信号的质量。 锁定时间(Lock Time):PLL从失锁状态到重新锁定所需的时间,对于快速响应系统至关重要。 输出频率范围:PLL能够产生的输出频率的范围,决定了其应用的灵活性。 温度稳定性:PLL在不同温度下仍能保持锁定的能力,对于宽温度范围应用尤为重要。 电...
锁相环的动态性能包括:锁定时间(Lock time),捕获范围(Capture range),锁定范围(Hold range)等。
[ 1.973048] imx_usb 32e40000.usb: No over current polarity defined [ 1.985807] imx6q-pcie 33800000.pcie: <imx8_pcie_wait_for_phy_pll_lock><850><5><ffff80000adc0000> [ 2.015491] imx6q-pcie 33800000.pcie: <ret:-110><vla: 1>PCIe PLL lock timeout...
the feedback action of the PLL causes the VCO to lock to the correct frequency. The lock speed depends on the nonlinear cycle slipping behavior. The total PLL lock time consists of two parts: the VCO band calibration time and the PLL cycle slipping time. The VCO band calibration time is ...
Dear: I have a question relating to PLL lock time: whether PLL lock time is its Synchronization accuracy。 And I figure out that the actual lock time
awhen I dream my dream,I dream of you 正在翻译,请等待... [translate] avalue and the PLL lock time will be automatically inserted. During the lock time, the clock is not supplied to the 将自动地插入价值和PLL锁时间。 在锁时间,时钟没有被提供给[translate]...
The PLL lock time can then be calculated from this function. Using this PLL lock time measurement method provides for very good frequency and time accuracy. Also, since for demodulation, the settled signal is used for multiplication, ATE synchronization is not required. Furthermore, since all ...
2. 锁定时间 (Lock Time):是指PLL从失锁状态到稳定锁定状态所需的时间。较短的锁定时间可以提供更好的动态性能和抗抖动能力。锁定时间和环路带宽之间存在着一定的折衷关系。 3. 输出频率范围 (Output Frequency Range):PLL的输出频率范围取决于VCO的工作频率范围和除N计数器的最大除数。选择合适的VCO和除N计数器...