What question did this study set out to answer?

The aim is to develop pulsed-latch-based phase/frequency detectors to reduce the blind zone and enhance gain in charge-pump-based phase-locked loops.

February 22, 2026IEICE Electronics ExpressOpen Access

Pulsed-latch-based phase/frequency detectors for fast acquisition in CPPLLs with high-frequency reference clocks

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Authors

ZYZong-Yi YangWuFeng University

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Implication

This work presents pulsed-latch phase/frequency detectors that enhance gain and reduce blind zones in CPPLLs, suggesting improved performance for high-frequency applications.

Key Points

The aim is to develop pulsed-latch-based phase/frequency detectors to reduce the blind zone and enhance gain in charge-pump-based phase-locked loops.
Propose two pulsed-latch-based frequency detectors (PLPFDs) to mitigate blind zone issues.
Analyze clock frequency, reset loop delay, and pulsewidth of clock signal.
Implement designs using a 0.18-μm CMOS process.
Achieve an operating frequency range of 1.8-3.4 GHz with lower power consumption in higher-frequency mode.
Reduce blind zone to 0.010-0.027 π in lower-BZ mode, operating from 0.5-1.7 GHz.
Show that PLPFDs can integrate well into CPPLLs for fast acquisition in communication systems.

Cite This Study

Zong-Yi Yang (2026) studied this question.

synapsesocial.com/papers/699a9ceb482488d673cd2a83 https://doi.org/10.1587/elex.23.20260060

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Implication

This work presents pulsed-latch phase/frequency detectors that enhance gain and reduce blind zones in CPPLLs, suggesting improved performance for high-frequency applications.

Pulsed-latch-based phase/frequency detectors for fast acquisition in CPPLLs with high-frequency reference clocks

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Implication

Key Points

Cite This Study

Pulsed-latch-based phase/frequency detectors for fast acquisition in CPPLLs with high-frequency reference clocks

Discussion

Member takes

Implication

Key Points

Cite This Study

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