Microchip Introduces First Clock Buffers to Meet DB2000Q/QL Standards plus PCIe Gen 4 and Gen 5 Low Jitter Specifications
June 25 2019 - 8:09AM
As data centers migrate to greater bandwidth and faster
infrastructure, the need for higher performance timing devices
becomes critical. Four new 20-output differential clock buffers
that exceed PCIe® Gen 5 jitter standards for next-generation data
center applications are now available from Microchip Technology
Inc.
(Nasdaq: MCHP). The
ZL40292
(85Ω termination) and
ZL40293 (100Ω termination)
are specifically designed to meet the new DB2000Q specification
while the
ZL40294 (85Ω termination) and
ZL40295 (100Ω termination) are designed to meet
the DB2000QL industry standard. All are ideally suited for
next-generation servers, data centers, storage devices and other
PCIe applications. These new devices also meet PCIe Gen 1, 2, 3 and
4 specifications.
Each buffer is an ideal complement to chipsets
where distributed clocks are required across several peripheral
components, such as Central Processing Units (CPUs), Field
Programmable Gate Arrays (FPGAs) and Physical layers (PHYs) in data
center servers and storage devices, along with many other PCIe
applications. The devices’ low additive jitter of approximately 20
femtoseconds (~20 fs) far exceeds the DB2000Q/QL specification of
80 femtoseconds (80 fs). This provides designers large margins to
meet tight timing budgets while achieving increasing data rates.
These devices will minimize jitter when distributing clocks to up
to 20 outputs, thereby maintaining the integrity and quality of the
clock signal through the buffer.
The new buffers achieve low power dissipation and
contribute significant savings to power budgets by using Low-Power
High-Speed Current Steering Logic (LP-HCSL). Compared to standard
HCSL, LP-HCSL consumes one third of the power, leading to a
significant decrease in power consumption. This feature also gives
customers the ability to drive longer traces on their board,
improving signal routing while reducing components and board space.
The ZL40292, for example, can eliminate up to 80 termination
resistors (four per output) compared to traditional HCSL
buffers.“Microchip provides the broadest clock and timing portfolio
in the industry and continues to develop solutions to address
demanding next-generation networking applications, such as higher
speed data center and enterprise infrastructure,” said Rami Kanama,
vice president of Microchip’s timing and communications business
unit. “Customers who are seeking DB2000Q- and DB2000QL-compliant
clock buffers can begin their designs now because of Microchip’s
early introduction and the superior performance of PCIe Gen 5
devices, offering engineers greater design margins and peace of
mind.”
Pricing and AvailabilityThe ZL40292 and ZL40293
are available now for sampling and in volume production in 72-pin
10 x 10 mm QFN packages. The ZL40294 and ZL40295 are available now
for sampling in the 80-pin 6 x 6 QFN packages. For pricing and
additional information, contact a Microchip sales representative,
authorized worldwide distributor or visit Microchip’s website. To
purchase products mentioned here or get additional information
visit our purchasing portal or contact a Microchip
authorized distributor.
ResourcesHigh-res images available through
Flickr or editorial contact (feel free to publish):
- Application image:
www.flickr.com/photos/microchiptechnology/48039160482/sizes/l
- Chip graphic:
www.flickr.com/photos/microchiptechnology/48039101208/sizes/l
About Microchip TechnologyMicrochip Technology
Inc. is a leading semiconductor supplier of smart, connected and
secure embedded control solutions. Its easy-to-use development
tools and comprehensive product portfolio enable customers to
create optimal designs which reduce risk while lowering total
system cost and time to market. The company’s solutions serve more
than 125,000 customers across the industrial, automotive, consumer,
aerospace and defense, communications and computing markets.
Headquartered in Chandler, Arizona, Microchip offers outstanding
technical support along with dependable delivery and quality. For
more information, visit the Microchip website at
www.microchip.com.
Note: The Microchip name and logo and the Microchip logo are
registered trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries. All other trademarks mentioned herein
are the property of their respective companies.
Editorial
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