Credo Introduces World’s First 800G DSP for Linear Receive Optics, Targeting Hyperscale and AI Data Centers
29 Noviembre 2023 - 3:07PM
Business Wire
Optimized DSP Reduces Module Power and Cost,
Enabling Robust System Performance
Credo Technology Group Holding Ltd (NASDAQ: CRDO) today
announced availability of an industry first, the Dove 850 800G
Digital Signal Processor (DSP) IC, optimized for Linear Receive
Optics (LRO), also known within the industry as Half-retimed Linear
Optics (HALO). In an LRO transceiver or Active Optical Cable (AOC),
only the transmit path from the electrical input to the optical
line side output includes a DSP for signal retiming and
equalization. The Dove 850 is a unidirectional 8 x 112 Gb/s DSP
purpose built for this LRO architecture.
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Credo today announced availability of an
industry first, the Dove 850 800G DSP IC, optimized for Linear
Receive Optics (LRO), also known within the industry as
Half-retimed Linear Optics (HALO). In an LRO transceiver or Active
Optical Cable (AOC), only the transmit path from the electrical
input to the optical line side output includes a DSP for signal
retiming and equalization. The Dove 850 is a unidirectional 8 x 112
Gb/s DSP purpose built for this LRO architecture. (Graphic:
Business Wire)
As hyperscale data center AI deployments grow rapidly,
high-speed optical transceivers and AOCs are critical to connecting
thousands of GPUs. Given the huge volume of these optical
components, improvements in energy efficiency are essential. The
Dove 850 addresses this need while enabling robust system
performance, with the added benefit of reducing cost.
“Dove 850 reduces DSP power by up to 50% and optimizes cost
while providing customers with an easy to use, robust, and
interoperable solution,” said Chris Collins, Vice President of
Sales and Optical Product Marketing at Credo. “Our lead transceiver
and hyperscale customers recognize the value of this solution and
we have already shipped Dove 850 samples and evaluation boards to
address the market need.”
Transceiver vendors can further optimize the module cost with
Dove 850 by employing a variety of optics, including VCSELs,
silicon photonics, EML or thin-film lithium niobate as dictated by
the application requirements.
A Dove 850 based optical transceiver aims to address the
inherent weakness of a Linear Pluggable Optics (LPO) implementation
by facilitating IEEE compliant optical transmit signaling and
easing the deployment burden on system operators by eliminating
manual, per port tuning. The result is lower bit error rates,
enhanced sensitivity, reduced performance variation, and improved
resilience to different switch ASICs, PCB traces, optical
components, and environmental conditions.
“Over the last year, LPO has been a popular topic as the
industry looks for ways to reduce power consumption in datacenters.
However, customer enthusiasm has been curbed because of technical
limitations such as interoperability, link accountability, and the
ability to troubleshoot, which drove our forecast for LPO to less
than 10% of the 800GbE market,” said Scott Wilkinson, Lead Analyst
for Optical Components at Cignal AI. “Credo’s Dove 850 is a
half-retimed solution that addresses these limitations, consumes
less power than conventional optics, and provides a clear path to
224G for 1.6 Tb/s operation. This solution should significantly
expand the market for low power 800GbE solutions well beyond that
of LPO.”
The Dove 850 features independent PLL’s for each lane to support
breakout applications, an OIF CEI-112G-MR compliant host interface,
and numerous integrated diagnostic features to accelerate time to
market and aid with system debug.
Dove 850 Features and Technical Benefits
- IEEE 802.3 and CMIS 5.x compliant.
- 8 x 112 Gb/s PAM4 on both the electrical host receiver and
optical line transmitter interfaces.
- Copper optimized DSP based electrical host side receivers
deliver industry leading sensitivity and BER performance.
- Line side transmitters with multi-tap FIR filters, and
non-linear correction facilitate the use of multi-mode or
single-mode optics.
- Independent phase locked loops per channel supports flexible
breakout configurations including 2x400G, 4x200G and 8x100G.
- A full suite of link diagnostic features simplifies lab bring
up and production testing.
- Low-power dissipation reduces cooling requirements and provides
for an energy efficient 800G optical solution.
Availability
Samples and evaluation boards of the Dove 850 are available
immediately. Interested customers should contact:
sales@credosemi.com. All Credo product offerings are supported by
evaluation boards, simulation models, characterization reports,
reliability reports, design libraries and a complete set of
supporting documentations.
To learn more about Credo Optical products, go here.
About Credo
Our mission is to deliver high-speed solutions to break
bandwidth barriers on every wired connection in the data
infrastructure market. Credo is an innovator in providing secure,
high-speed connectivity solutions that deliver improved power
efficiency as data rates and corresponding bandwidth requirements
increase exponentially throughout the data infrastructure market.
Our innovations ease system bandwidth bottlenecks while
simultaneously improving on power, security, and reliability. Our
connectivity solutions are optimized for optical and electrical
Ethernet applications, including the emerging 100G (or Gigabits per
second), 200G, 400G, 800G and the emerging 1.6T (or Terabits per
second) port markets. Credo products are based on our proprietary
Serializer/Deserializer (SerDes) and Digital Signal Processor (DSP)
technologies. Our product families include Integrated Circuits
(ICs) for the optical and line card markets, Active Electrical
Cables (AECs) and SerDes Chiplets. Our intellectual property (IP)
solutions consist primarily of SerDes IP licensing.
For more information, please visit https://www.credosemi.com.
Follow Credo on LinkedIn.
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version on businesswire.com: https://www.businesswire.com/news/home/20231129341796/en/
Media Contact: Diane Vanasse
diane.vanasse@credosemi.com
Investor Contact: Dan O’Neil
dan.oneil@credosemi.com
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