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Silicon Proven Low-Jitter DLLs Target High-Speed DDR Style Interface
Applications
LOS ALTOS, California, October 8, 2003 - True Circuits, Inc. (TCI), a
leading provider of analog and mixed-signal intellectual property (IP) for
the semiconductor and systems industries, today announced the immediate
availability of a line of Delay-Locked Loop (DLL) analog hard macros for
high-speed DDR style interface applications.
The True Circuits DDR DLL is a very flexible silicon proven, low-jitter hard
macro that generates precise strobe signal delays that can be programmed
from 0 to 360 degrees of the reference period. It is designed to delay
multiple periodic or aperiodic signals independent of voltage and
temperature and deliver optimal jitter performance over a wide frequency
range.
"Our high-performance DDR DLL is another example of a hard macro we have
specifically developed for circuit designers in need of an accurate and
flexible timing solution, in this case, for DDR style memory interface
applications", noted Dr. John Maneatis, True Circuits' President. "This DDR
DLL has been successfully implemented in combination with our Clock
Generator PLL, providing our customers with a powerful timing solution
whereby they can programmably target different speed memories with optimal
interface timing."
What's New
True Circuits' DDR DLL uses a reference clock to establish a time base in
order to delay arbitrary strobe signals by precise fractions of the clock
cycle. It uses an analog delay line that is phase-locked to be insensitive
to temperature or supply voltage and setup with very high supply noise
rejection. The block can be configured by TCI to have just about any number
of slaves (which delay the arbitrary signals) with a single master section
to minimize area and power. The slave delays can be set to particular values
or dynamically adjusted after determining the boundaries of a data eye. The
DDR DLL is flexible, low-jitter and has very good linearity and resolution.
Pricing and Availability
True Circuits DLLs are available for immediate customer delivery in TSMC,
UMC and Chartered processes from 0.25 to 0.09 micron. The hard macros are
available for a per use license fee with no royalty fees. The license fee
includes integration support from TCI to ensure a successful customer tape
out. The deliverables include GDSII and LVS Spice netlists, Verilog and
synthesis models, Library Exchange Format (LEF) files and extensive user
documentation.
About True Circuits PLLs and DLLs
True Circuits offers a complete family of standardized clock generator,
deskew, low-bandwidth and spread-spectrum PLLs and DDR DLLs that spans
nearly all performance points and features typically requested by ASIC
designers. These high-quality, low-jitter, silicon proven hard macros are
available for immediate delivery in a range of frequencies, multiplication
factors and functions in TSMC, UMC and Chartered processes from 0.25 to 0.09
micron. For more information about True Circuits products, visit
www.truecircuits.com/tci_technology.html.
About True Circuits
Founded in 1998, True Circuits develops and markets a broad range of PLLs,
DLLs and other mixed-signal hard macros for ICs for the semiconductor,
systems and electronics industries. 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 the company to quickly
and reliably produce new and innovative designs in a variety of advanced
process technologies.
True Circuits is headquartered at 4962 El Camino Real, Suite 206,
Los Altos, California 94022 and can be found on the web at
www.truecircuits.com. Product inquiries can be made by calling the
company directly at (650) 691-2500 or via e-mail at
sales@truecircuits.com.
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