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Tag Archives: mixed signal.

Analog Designers Face Low Power Challenges

Can mixed signal designs achieve the low power needed by today’s tightly integrated SoCs and embedded IoT communication systems?

System level power budgets are affected by SoC integration. Setting aside the digital scaling benefits of smaller geometric nodes, leading edge SoCs achieve higher performance and tighter integration with decreased voltage levels at a cost. If power is assumed to be constant, then that cost is the increased current flow (P=VI) delivered to an ever larger number of processor cores. That’s why SoC power delivery and distribution remain a major challenge for chip architects, designers and verification engineers.

As with digital engineers, analog and mixed signal power designers must consider ways to lower power consumption early in the design phase. Beyond that consideration, there are several common ways to reduce the analog mixed signal portion of a power budget. These ways include low-power transmitter architectures; analog signal processing in low-voltage domains; and sleep mode power reduction. (ARM’s Diya Soubra takes about mixed signal sleep modes in, “Digital Designers Grapple with Analog Mixed Signal Designs.”)

Read the complete post on the System Design Engineering site.

Best Practices for Mixed Signal, RF and Microcontroller IoT

The Low-Power Engineering (LPE) portal asked the experts for help in detailing the best practices to help digital designers incorporate analog, mixed signal and RF functionality into their System-on-Chips (SoC). What follows is a compendium of inputs from Diya Soubra, CPU Product Manager, Processor Division and Joseph Yiu, Embedded Technology Specialist at ARM; Qi Wang,Technical Marketing Group Director and Mladen Nizic, Engineering Director for Mixed Signal Solutions at Cadence Design Systems.

Blyler: What are the best practices for EDA chip-level IoT mixed signal and microcontroller designs?

Joseph Yiu:
- Use of power aware verification early and throughout in the project, e.g., power aware simulation with Si2 Common Power Format (CPF) (and/or IEEE-Accellera Unified Power Format (UPF)). Power aware verification is not just for low power simulations but also for various system level simulations.
- Use the right model for mixed signal simulation (trade off between accuracy and simulation speed)
- Power quality check. Verification of power constraints/budgets in the early stage of the design can help you to find corner cases in power management schemes.

Read the complete post  on the Low Power Engineering site.