November 11, 2002

Technical Paper Co-authored by TCI and TI Employees Accepted for Presentation at ISSCC 2003

Self-Biased High-Bandwidth Low-Jitter 1-to-4096 Multiplier Clock Generator PLL

J. Maneatis, J. Kim, and I. McClatchie - True Circuits, Inc., Los Altos, CA
J. Maxey and M. Shankaradas - Texas Instruments, Inc., Dallas, TX

A self-biased PLL uses a sampled feed-forward filter network and a multi-stage inverse-linear programmable current mirror for constant loop dynamics that scale with reference frequency and are independent of multiplication factor, output frequency, and PVT. The PLL achieves a multiplication range of 1 to 4096 with <1.7 % output jitter at 1.5V supply. Fabricated in 0.13um CMOS, the area is 0.182mm2 and the supply is 1.5V.

Presentation Slides:

Presentation Date: 2:00PM, February 12, 2003

Presentation Location: San Francisco Marriott, San Francisco, California

About True Circuits
Founded in 1998, True Circuits, Inc. develops and markets a broad range of PLLs and other mixed-signal designs for ICs for the semiconductor, systems and electronics industries. TCI's reputation is built on providing quality standardized and full-custom PLLs and other mixed-signal designs to the world's most demanding customers. TCI's robust state-of-the-art circuits, methodical and proven design strategy, and its close association with the world's leading silicon fabrication vendors, allow it to produce new and innovative designs in a variety of advanced process technologies quickly and reliably.

True Circuits is headquartered at 4962 El Camino Real, Suite 206, Los Altos, Calif. 94022 and can be found on the web at Product inquiries can be made by calling the company directly at (650) 691-2500 or via e-mail at

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