A fabless semiconductor company specializing in high performance Reference Clocks and Timing ICs. Our products are based on innovative manufacturing and patented IC design technologies achieving outstanding performance.

Pearl Semiconductor aims to be the leading supplier of high performance reference clocks and Timing ICs serving the most demanding industrial, networking, telecom and automotive applications.

Phase Locked Loops (PLLs) have been used over the years to develop timing solutions ranging from programmable reference clocks and clock generators to jitter attenuators and network synchronizers. Pearl Semiconductor has developed SpurFree^TM, a novel PLL architecture that enjoys all the merits of a Sigma-Delta Fractional-N PLL architecture yet behaves like an integer-N PLL. The result is outstanding spur-free phase noise behavior with unbelievably low integrated phase jitter. This novel PLL architecture uses Pearl’s patented DSP algorithms and circuit techniques to continuously suppress any spurs while minimizing the noise contribution of active circuitry within the PLL bandwidth. Pearl Semiconductor is using this ULN PLL technology to develop Timing solutions serving demanding applications such as OTN modules for 100G/200G/400G/800G, video broadcasting and 5G infrastructure. To know more about SpurFree^TM technology, Click here!

Pearl developed SingleDie^TM technology, a true monolithic piezo MEMS SAW technology. SingleDie^TM merges MEMS resonators with CMOS circuitry in one chip, uniting resonator, oscillator, multiplier, and temperature compensation. The result is ultra-low noise, solid stability, and reliable performance up to 125 °C for industrial and automotive needs.

This tightly coupled design ensures fast calibration, lower costs, and consistent quality. With future programmable options on the horizon, Pearl is setting a new standard for reference clock technology. Beyond performance, the compact architecture also simplifies system design and reduces board space, giving customers more flexibility and efficiency in their end products. To know more about SingleDie^TM technology, Click here!

Pearl is developing a complete and comprehensive portfolio of timing products based on its proprietary SpurFree^TM technology, uniquely designed to address the stringent requirements of next-generation datacenter connectivity. With the rapid evolution of cloud infrastructure and optical interconnect standards, ultra-low noise timing has become a critical enabler for system performance, signal integrity, and scalability. Pearl’s SpurFree-enabled product families cover the full spectrum of needs: high-performance reference clocks (PRL51X/51Xe, PRL50X), versatile multi-output clock generators (PRL451X), and advanced jitter attenuators (PRL651X). This full breadth of solutions ensures optimized support for all verticals of Communication, Enterprise and Datacenters (CED) applications delivering the lowest phase noise and best-in-class reliability. Pearl is empowering datacenter OEMs to meet emerging connectivity standards with confidence. To know more about SpurFree^TM products, Click here!

Pearl’s SingleDie™ technology integrates a Piezo MEMS SAW resonator with CMOS circuitry on a single chip, delivering a compact and highly reliable reference clock solution. The PRL21X, PRL421X, and PRL621X families provide XO and VCXO variants with very low jitter and stable operation across extended temperatures up to +125°C. These attributes make SingleDie™ products ideally suited for demanding automotive and industrial applications, where reliability and robustness are critical. Single-die integration reduces footprint, power, and cost, while an advanced PLL architecture and compensation engine ensure consistent performance under harsh conditions. In addition to discrete solutions, SingleDie™ can be offered in chiplet form, providing OEMs with greater flexibility to design scalable and efficient timing architectures.To know more about SingleDie^TM Products, Click here!