PLL Design Engineer
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Before you apply
LocationAustin, Texas, United States; Cupertino, California, United States; San Diego, California, United States
SeniorityEntry
DepartmentHardware
Company size10,000+ people
PostedApr 20, 2026 · 6mo ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
BSEE with 0 years of relevant experience
Demonstrated proficiency in PLL/FLL and frequency synthesis architecture and circuit design (digital and analog approaches, DCO/VCO design both RO and LC, Fractional-N, SSC, Spur and Jitter cancellation techniques)
Good understanding of band gaps, bias circuits, op-amps, LDOs, feedback and compensation techniques
Deep understanding of clocking fundamentals with solid grasp of phase noise, jitter analysis, budgeting, and feedback loop dynamics
Skilled in developing System Verilog models and performing behavioral simulations to explore new architectural performance and impact on loop dynamics
Ability to design/debug RTL
Exceptional focus on understanding problems and their systemic impacts, ensuring thoroughness in problem-solving
History of innovation and self-directed learning with demonstrated leadership skills and a growth mindset
Outstanding teamwork capabilities paired with strong productivity and scripting skills, ideally with experience in using industry-standard design tools
Skills
PLL
FLL
DCO
VCO
RO
LC
Fractional-N
SSC
System Verilog
RTL
scripting
About the company
At Apple, our products are revolutionizing the way people live across the globe. Within our Analog-Mixed/Signal group, your role will be crucial in pushing the boundaries of what our technology can achieve. We are dedicated to crafting high-quality, innovative hard IPs that surpass the ordinary, adjusting to the escalating complexity of SOC/PHY designs and multiplying projects within tight production schedules. Our environment thrives on these challenges, fueled by a team of exceptional individuals passionate about continual learning and making a substantial impact. If you excel in dynamic settings, relish collaborative problem-solving, and seek to make a societal impact through your work, you might be the ideal candidate for our team. At Apple, you’ll join a culture that encourages you to take ownership of your career, supported by colleagues committed to making a difference.
Description
Responsibilities
In this role, you will leverage your expertise to develop cutting-edge frequency synthesizers for a variety of applications, including Compute, SoC, SerDes, and Cellular technologies. Your work will directly contribute to maintaining Apple’s leadership in innovation and market presence, setting new standards in the tech industry.
Minimum qualifications
•
BSEE with 0 years of relevant experience
Preferred qualifications
•
Technical Expertise: Demonstrated proficiency in PLL/FLL and frequency synthesis architecture and circuit design. This includes digital and analog approaches, DCO/VCO design both RO and LC, Fractional-N, SSC, Spur and Jitter cancellation techniques …etc
•
Good understanding of band gaps, bias circuits, op-amps, LDOs, feedback and compensation techniques.
•
Clocking Mastery: Deep understanding of clocking fundamentals, with a solid grasp of phase noise, jitter analysis, budgeting, and feedback loop dynamics.
•
Simulation and Modeling: Skilled in developing System Verilog models, and performing behavioral simulations to explore new architectural performance and impact on loop dynamics. Ability to design/debug RTL is a plus.
•
Attention to Detail: Exceptional focus on understanding the problems at hand and their systemic impacts, ensuring thoroughness in problem-solving.
•
Innovation and Learning: A history of innovation and self-directed learning, with demonstrated leadership skills and a growth mindset.
•
Team Collaboration: Outstanding teamwork capabilities paired with strong productivity and scripting skills, ideally with experience in using industry-standard design tools.
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