Pearl Semi Selects Siemens Symphony AMS Platform for New Low-Noise Digital PLL Design


Plano, Texas, USA — January 27, 2022 — Siemens Digital Industries Software announced that Pearl Semiconductor, a fabless semiconductor company specializing in high-performance timing products, has used Siemens’ Symphony™ mixed-signal platform to develop and verify its all-new loop phase-locked digital ultra-low noise (PLL) design, which targets a range of demanding applications such as high-speed connectivity, high-bandwidth video streaming and 5G infrastructure markets.

Leveraging the fast simulation performance of Siemens’ Symphony Mixed-Signal platform, Pearl Semiconductor quickly achieved accurate silicon simulation for its latest PLL offering, while increasing functional verification cycles by 4x. This dramatic acceleration helped Pearl achieve aggressive time-to-market goals.

“With the exponential increase in data due to digitalization, the need for a global upgrade in bandwidth and data network infrastructure is occurring at a rapid pace,” said Mohamed Dessouky, Vice-President president of engineering at Pearl Semiconductor. “High-performance timing solutions such as our latest PLL offering play a key role in increasing bandwidth for network ICs. Our new PLL architecture permanently suppresses noise, while minimizing the noise contribution of active circuits in the PLL bandwidth. Designing these complex circuits requires a robust mixed-signal verification solution, which is why we chose Siemens Symphony Mixed-Signal Platform for in-depth mixed-signal verification of our PLL designs. Symphony’s flexibility to work with our mixed signal use cases and the ease of use of the tool has resulted in wider adoption among our verification teams and resulted in a 4x improvement in productivity. »

Powered by Siemens Analog FastSPICE (AFS) technology, the Symphony Mixed-Signal platform combines the industry-leading foundry-certified circuit simulator with industry-standard hardware description language (HDL) simulators to provide fast and accurate signal verification complex mixtures at the nanometric scale. integrated circuits (ICs). The platform’s modular architecture leverages Siemens’ AFS circuit simulation software to deliver exceptionally fast mixed-signal simulation performance with nanoscale SPICE accuracy and compatibility with all major solvers including the Questa™ family of functional verification tools from Siemens.

“The need for high-bandwidth, ultra-low-noise synchronization solutions is becoming critical in many applications, and mixed-signal innovations such as Pearl’s analog DSP+ solutions are key to meeting these requirements,” said Ravi. Subramanian, senior vice president and general responsible for the IC Verification Solutions Division at Siemens Digital Industries Software.”We are delighted that our analog mixed-signal platforms FastSPICE and Symphony have played a key role in Pearl’s development of their latest ultra-low noise digital PLL design.”

To learn more about the Siemens Symphony Mixed-Signal platform, visit:

To learn more about the Siemens Analog FastSPICE platform, visit:

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Siemens Digital Industries (DI) is an innovation leader in automation and digitalization. Working closely with partners and customers, DI drives digital transformation in process and discrete industries. With its Digital Enterprise portfolio, DI provides companies of all sizes with a complete set of products, solutions and services to integrate and digitize the entire value chain. Optimized for the specific needs of each industry, DI’s unique portfolio helps customers achieve increased productivity and flexibility. DI is constantly adding innovations to its portfolio to incorporate cutting-edge future technologies. Siemens Digital Industries is headquartered in Nuremberg, Germany, and has approximately 76,000 employees worldwide.

Siemens AG (Berlin and Munich) is a technology company focused on industry, infrastructure, transport and health. From more resource-efficient factories, resilient supply chains, smarter buildings and networks, to cleaner and more comfortable transportation and advanced healthcare, the company is creating technology with the aim of adding real value to customers. By combining the real and digital worlds, Siemens enables its customers to transform their industries and markets, helping them transform the lives of billions of people. Siemens also owns a majority stake in publicly traded Siemens Healthineers, a global medical technology leader that is shaping the future of healthcare. In addition, Siemens holds a minority stake in Siemens Energy, a world leader in transmission and power generation.

In fiscal year 2021, ending September 30, 2021, the Siemens Group generated revenue of €62.3 billion and net income of €6.7 billion. As of September 30, 2021, the company had approximately 303,000 employees worldwide. Further information is available on the Internet at


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