Digital Mixed-Signal System Architect

Job Title

Digital Mixed-Signal System Architect

Role Summary

The Digital Mixed-Signal System Architect will define, model, and validate digitally implemented mixed-signal data paths used in next-generation digital power management products for AI, datacenter, and high-performance computing. The role focuses on the digital architecture linking analog measurements to control-loop decisions: ADC interfaces, front-end DSP, telemetry, emulation models, timing, fixed-point implementation, and hardware/firmware interfaces.

This role partners with systems, digital design, firmware, verification, validation, applications, and analog teams to produce executable models, RTL-facing specifications, and silicon-validation evidence.

Experience Level

Senior — typically 8+ years of relevant experience in digital systems architecture, mixed-signal SoC architecture, DSP, power management, or related semiconductor product development.

Responsibilities

Primary responsibilities focus on architecture, modeling, specification, and cross-functional delivery for mixed-signal digital data paths.

• Define digital mixed-signal system architecture for multiphase power controllers and related power-management products.
• Architect front-end DSP paths to filter, condition, scale, decimate, observe, and route sensed voltage/current into control, telemetry, protection, and diagnostics.
• Specify ADC interface behavior: sampling relationships, data-valid timing, channel sequencing, calibration hooks, latency budgets, saturation and quantization behavior, and error handling.
• Develop executable models and emulation-oriented representations for system exploration before RTL/silicon availability.
• Translate system and control-loop requirements into RTL-facing specifications, fixed-point formats, datapath constraints, registers, firmware interfaces, and validation criteria.
• Collaborate with analog designers on ADC/sensing assumptions while owning digital architecture and system integration.
• Work with firmware to define observability, telemetry, debug access, configuration flows, and bring-up hooks for characterization and support.
• Partner with verification/validation to define reference scenarios, pass/fail criteria, correlation expectations, coverage targets, and structured evidence.
• Analyze tradeoffs across loop performance, latency, noise sensitivity, resolution, dynamic range, power, area, configurability, and implementation complexity.
• Document architecture: assumptions, interface contracts, model behavior, limits, corner cases, and validation expectations.

Requirements

Must-have technical skills and experience; preferred items listed separately.

• 8+ years of experience in digital systems architecture, mixed-signal SoC architecture, DSP, control-oriented digital design, semiconductor verification, or related product development.
• Strong understanding of DSP concepts, fixed-point arithmetic, sampling theory, filtering, timing, latency, quantization, saturation, and numeric-precision tradeoffs.
• Experience defining ADC-facing digital logic, sensor data paths, telemetry data paths, digital controllers, or control-loop support logic in a semiconductor product environment.
• Proven ability to translate system-level requirements into RTL-facing architecture, emulation models, firmware-visible behavior, and validation-ready specifications.
• Strong cross-functional communication skills to align systems, digital design, firmware, analog, verification, validation, applications, and tools teams.

Nice-to-have

• Experience with digital power controllers, DC/DC converters, voltage regulators, power-management ICs, multiphase control, or high-current datacenter power applications.
• Experience with RTL architecture, SystemVerilog, Python, MATLAB, C/C++, emulation, FPGA prototyping, behavioral or real-number modeling, or hardware/software co-design.
• Experience with ADC controller architecture, coherent sampling, digital filtering, decimation, telemetry, protection paths, or loop-compensation support.
• Experience creating reusable models, reference tests, or structured engineering data to improve model-to-RTL/emulation/silicon correlation.

Education Requirements

Required: Bachelor's degree in Electrical Engineering, Computer Engineering, or a related technical discipline. Preferred: Master's degree or PhD in Electrical Engineering, Computer Engineering, Signal Processing, Control Systems, Power Electronics, or a related discipline.

About the Company

Company: Renesas

Headquarters: Hitachinaka, Japan

Renesas is a global leader in embedded semiconductor solutions, providing high-quality products across automotive, industrial, infrastructure, and IoT sectors. With over 22,000 employees in more than 30 countries, the company focuses on scalable solutions that enhance user experience and drive innovation while committed to sustainability and energy efficiency.