True Circuits develops and markets a broad range of Phase-Locked Loops (PLLs), Delay-Locked Loops (DLLs), DDR PHYs and other mixed-signal designs for integrated circuits for the semiconductor, systems and electronics industries.

The company was founded in 1998 by Dr. John G. Maneatis, world renowned for his innovative work in the area of PLL design. In those early years, TCI built its reputation on providing quality full-custom PLLs, DLLs, and other mixed-signal designs to the world's most demanding customers. Over the subsequent years, True Circuits has distinguished itself as the technology leader in the timing IP space, and its PLLs and DLLs are used extensively around the world in its customers' products with production volumes in the billions.

TCI offers the industry's largest portfolio of standardized PLL and DLL hard macros which spans nearly all performance points and features typically requested by ASIC, FPGA, and SoC customers. Each hard macro is designed using our robust state-of-the-art circuits, methodical and proven design strategy and a high degree of automation to ensure quality, consistency and fast time-to-market. TCI also works closely with the world's leading foundries, IDMs, and design services companies to ensure our IP is well proven and readily available to our customers around the world. When customers come to us with specialized needs, TCI can draw on many years of application and design experience to offer customized versions of our PLLs and DLLs that they can rely on for silicon success.

Our PLL and DLL hard macros are available for immediate delivery in a range of frequencies, multiplication factors, sizes and functions in TSMC, GLOBALFOUNDRIES and UMC logic processes from 180nm to 4nm. The licensing terms for our standardized and custom hard macros do not involve royalty payments.

TCI's reputation for reliability and timing excellence is unmatched. TCI's PLL and DLL jitter performance is among the best in the industry. Its leading-edge designs are both versatile and highly process tolerant. The entire business model and product line have been specifically designed so customers can license premium quality PLLs quickly and easily with the highest confidence that their chip design will work on the first silicon.

This website exists to answer your questions about PLLs and DLLs, and to help you determine if your needs can be met by one of TCI's standard hard macros. If you do not see a hard macro that meets your specifications, TCI will be more than happy to discuss a customized solution with you.