An average decrease of 20 min in intraoperative time was observed because of it is easier to introduce and there is no locking time.
Thanks to the corrections, the locking time onto the GEO satellite has been reduced, and more data are able to transmit to the GEO satellite.
The digital PLL's locking time can be reduced due to the multi-output comparing with the classical digital PLL's with standard BBPD.
The simulation results such as the locking time, response of each joint and the strain at the base of each link match very well with the experimental results.
Applying the proposed noise model, circuit variables in ADPLL can be properly selected to meet phase noise, fractional spur and locking time requirements.
In order to further shorten the loop locking time, we propose to reuse the MSBs, which are trigged at the early stage of locking acquisition, such that the phase difference can quickly decrease.
The maximum locking time of the ΔΣ fractional-N PLL frequency synthesizer with loop bandwidth calibration and automatic frequency control circuit is 12.7 μs for KVFC= 10 and KLBC="150 for worst case condition.
We propose a dual PFD architecture of a PLL which combines the benefits of both the PFDs and heavily shrinks the tradeoffs among phase noise, power consumption and lock time of the PLL.
This paper presents a methodology to determine all-digital phase-locked loop (ADPLL) circuit variables based on required design specifications, including output phase noise, fractional spur and locking time.
The gates, which each weigh 90 tonnes, are part of a £6m revamp to speed up lock times and improve accessibility.
