Modified delta-sigma modulator for phase coherent frequency synthesis applications
A phase coherent fractional-N phase-locked loop synthesizer for maintaining phase
coherence of a synthesized frequency includes a phase coherent delta-sigma modulator …
coherence of a synthesized frequency includes a phase coherent delta-sigma modulator …
System-on-a-chip clock phase management using fractional-N PLLs
J Zhuang, F Bossu - US Patent 10,116,315, 2018 - Google Patents
A clock distribution architecture is provided in which the output clock signals from a plurality
of fractional-N PLLs have a known phase relationship because each fractional-N PLL is …
of fractional-N PLLs have a known phase relationship because each fractional-N PLL is …
Phase continuity technique for frequency synthesis
M Zanuso, M Elbadry, TP Hung, R Sridhara… - US Patent …, 2018 - Google Patents
A phase discontinuity mitigation implementation within a phased lock loop (PLL) improves
throughput of a radio access technology. The throughput is improved by maintaining a …
throughput of a radio access technology. The throughput is improved by maintaining a …
Multi-modulus divider with power-of-2 boundary condition support
Frequency divider techniques are disclosed which can be used to address two problems:
when an incorrect division occurs if the modulus control changes before the divide cycle is …
when an incorrect division occurs if the modulus control changes before the divide cycle is …
Frequency synthesis with accelerated locking
KJN Wang, S Sivakumar - US Patent 10,615,808, 2020 - Google Patents
An apparatus is disclosed that implements frequency syn thesis with accelerated locking. In
an example aspect, the apparatus includes an oscillating signal source, a modulus …
an example aspect, the apparatus includes an oscillating signal source, a modulus …
Field programmable gate array with external phase-locked loop
N Badizadegan - US Patent 12,113,539, 2024 - Google Patents
US12113539B1 - Field programmable gate array with external phase-locked loop - Google
Patents US12113539B1 - Field programmable gate array with external phase-locked loop …
Patents US12113539B1 - Field programmable gate array with external phase-locked loop …
Field programmable gate array with internal phase-locked loop
N Badizadegan - US Patent 12,107,587, 2024 - Google Patents
US12107587B1 - Field programmable gate array with internal phase-locked loop - Google
Patents US12107587B1 - Field programmable gate array with internal phase-locked loop …
Patents US12107587B1 - Field programmable gate array with internal phase-locked loop …
High-speed synchronizer with lower metastability failure rate
L Shen, TS David - US Patent 11,133,921, 2021 - Google Patents
A data synchronizer including an input stage, a driver stage, and a keeper stage. The input
stage latches input data to a data node in response to a first clock signal transition. The …
stage latches input data to a data node in response to a first clock signal transition. The …
Multi-mode frequency divider
D Dai, O Oluwole, S Sundaram - US Patent 10,116,314, 2018 - Google Patents
A frequency divider includes first circuitry, second circuitry, and third circuitry. The first
circuitry includes divide-by-two (div2) frequency divider circuitry, and the second circuitry …
circuitry includes divide-by-two (div2) frequency divider circuitry, and the second circuitry …