High-Speed Mixed-Signal Design Engineer

4 weeks ago


San Jose, California, United States Infinera Full time

At Infinera, we are seeking a highly skilled Mixed-Signal Design Engineer to lead the design efforts of high-speed low-noise clocking circuits, including fractional-N phase locked loops and clock distribution networks.

The successful candidate will have the opportunity to demonstrate their creativity and technical expertise in designing and implementing high-frequency VCOs, clock distribution networks, and phase noise and jitter performance.

The ideal candidate will have a strong background in CMOS analog and mixed-signal design, with experience in designing low phase noise LC-VCO based PLLs and clock distribution networks in Cadence environment.

Key Responsibilities:

  • Design, simulate, and verify high-frequency fractional-N PLLs.
  • Architect, model, and simulate noise accumulation and skew of clock distribution trees.
  • Model, optimize, and measure phase noise and jitter performance, and skew of whole clocking networks.
  • Design and implement high-frequency / low-noise VCOs.
  • Collaborate and/or supervise other team members for system design implementation, layout floor planning, and system level modeling.

Mandatory Knowledge/Skills/Abilities:

  • Exposure in designing low phase noise LC-VCO based PLLs to production.
  • Abundant knowledge in design trade-offs among different VCO topologies for MM-Wave applications.
  • Hands-on experience in designing clock distribution network in Cadence environment.
  • Good at modeling phase noise and spurs of frac-N PLLs.
  • Possess extensive experience in designing and implementing high frequency VCOs and clock trees with EMX tools.
  • Decent understanding in CMOS analog / mixed signal design overall.

Preferred Knowledge/Skill/Abilities:

  • Good at supervising testing activities.
  • Fluent in verbal and written communications.
  • Independently resolves issues and conquer design challenges.
  • Self-motivated and detail oriented.
  • Good interpersonal skills.

Education Requirements:

  • M.S. or Ph.D. in E.E.

Infinera is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.



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