PLL Design Engineer

Celero Communications, Inc.

$150K — $250K *
Telecommunications & Hardware
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Master's degree and/or PhD in Electrical Engineering or related fields
  • 5+ years of experience in PLL design and production level tape-out experience
  • Extensive experience with advanced node technologies (16nm to 2nm processes)
  • Deep understanding of phase noise analysis and VCO design
  • Proficient in Cadence Virtuoso and electromagnetic simulators (e.g., EMX/HFSS)

Responsibilities

  • Understand trade-offs between various PLL topologies according to specifications
  • Architect, design, and simulate analog/mixed-signal PLL components at transistor level
  • Address advanced node challenges like self-heating and device-level noise optimization
  • Supervise layout verification to ensure effective floor planning and matching
  • Conduct PLL bring-up and performance characterization in the lab
  • Perform comprehensive system-level simulations for PLL integration

Benefits

  • Opportunity to work with cutting-edge technology in advanced node processes
  • Involvement in comprehensive system-level projects
  • Supervisory role over layout verification, enhancing leadership skills
  • Access to state-of-the-art lab equipment for performance characterization
  • Collaboration on innovative solutions in a dynamic team environment
Full Job Description
What You Will Do:
  • Understand trade-offs between different PLL topologies (e.g., integer-N, fractional-N, all-digital/ADPLL) to meet specifications for power, area, jitter, and frequency range
  • Architect, design and simulate analog/mixed-signal PLL building blocks (VCOs, charge pumps, dividers, PFDs, Loop Filters) at transistor level using tools like Cadence Virtuoso and Spectre
  • Address challenges in advanced node technologies, such as self-heating, electromigration, voltage-controlled oscillator (VCO) linearization and device-level noise optimization
  • Supervise and verify layouts produced by layout engineers to ensure floorplanning, matching, and parasitic minimization using advanced node technologies
  • Be responsible for PLL bring up in the lab, conducting performance characterization using state-of-the-art lab equipment
  • Conduct comprehensive system-level simulations and validation for PLL integration into advanced transceiver technologies

What You Will Bring:
  • Master's degree and/or PhD in Electrical Engineering or related fields with 5+ years of relevant experience in PLL design, and production level tape-out experience.
  • Must have extensive experience with advanced node technologies (16nm/12nm, 7nm, 5nm, 3nm, 2nm processes)
  • Deep understanding of phase noise analysis, VCO design, LDOs and supporting circuitry associated with PLLs
  • Proficient in cadence virtuoso, electromagnetic simulator (e.g., EMX/HFSS), and MATLAB for system-level modelling
  • Strong communication and documentation skills

Salary Range

$150,000 - $250,000 Annually
The final offer will be determined based on job-related skills, experience, qualifications, and location.

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