MaxLinear PAM4 DSPs Accelerate Data Center Connectivity


MaxLinear PAM4 DSPs enable next generation fiber-optic modules for data center and hyperscale cloud networks

Data traffic continues to grow exponentially in hyperscale cloud networks; requiring ever increasing server access and switch-to-switch interconnect speeds. Low-power, high-density optical modules that support high lane rates are needed to enable higher bandwidth.


Highly Integrated DSPs & TIAs Enable Next Generation Optical Modules

MaxLinear provides a full range of PAM4 DSPs for applications ranging from 100G to 800G, supporting 53G/lane and 106G/lane options on both the host and line side interfaces for data center connectivity.


New Keystone DSPs enable sub-8W 400G-DR4 and sub-15W 800G-DR8 Optical Modules

  • 5nm technology
  • 400G/800G PAM4 DSPs
  • Support 106G/lane electrical and optical I/O 12mmx12mm package suitable for QSFP-DD800 and OSFP optical modules
  • Integrated driver with single-ended and differential options for both EML and SiPH optical interfaces
Snowmass DSP
100G PAM4
  • Two low power options
  • Electrical interface supports 25Gbps NRZ or 50Gbps PAM4
  • Optical interface supports 100Gbps PAM4 signaling
  • 7mm x 8.5mm package
  • DR/FR/LR
  • QSFP28 optical modules
  • SFP-DD optical modules
  • DSFP optical modules
Telluride DSP
400G PAM4
  • Two low power options
  • Electrical interface supports 56Gbps PAM4
  • Optical interface supports 112Gbps PAM4 signaling
  • 12mm x 12mm package
  • DR4/FR4/LR4
  • QSFP-DD optical modules
  • OSFP optical modules
Keystone DSP
400G/800G PAM4
  • Four low power options
  • Electrical interface supports 56Gbps PAM4
  • Optical interface supports 112Gbps PAM4 signaling
  • 12mm x 12mm package
  • PSM8, DR8, 2xFR, 2xLR (MxL9368x)
  • DR4/FR4/LR4
  • QSFP-DD800 (MxL9368x)
  • QSFP-DD optical modules
  • OSFP optical modules


Introducing Keystone: MaxLinear’s 3rd Gen PAM4 DSP Family

In this video, Drew Guckenberger introduces MaxLinear’s new Keystone 5nm PAM4 DSP family and provides an overview of MaxLinear’s full family of PAM4 DSPs engineered for data center solutions.

MaxLinear’s 800G Keystone Demo

This video demonstrates the performance of MaxLinear’s Keystone 800G PAM4 DSP.


Product Briefs
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MxL in the News
MaxLinear Introduces Industry's First 5nm 800G PAM4 DSP
“With the exponential growth of data traffic within hyperscale cloud networks, the needed increase in interconnect bandwidth in those networks requires lower-power, higher-density optical modules that support higher lane rates,” said Drew Guckenberger, Vice President of Optical Interconnect at MaxLinear. “We are extremely excited to announce the availability of our Keystone family of 5nm CMOS PAM4 DSPs, specifically designed to address these requirements. With our third generation Keystone DSP design, and the power advantages of 5nm CMOS technology, we are directly addressing our customers’ critical needs for low power, highly integrated, high performance interconnect solutions in next generation hyperscale cloud networks.”
MxL93516 Selected by uSenlight to Deliver Sub-3.5W 100G Modules
“MaxLinear’s MxL93516 PAM4 DSP with integrated EML driver offers the highest level of integration and superior link-margin performance in a low-power SoC,” said Dr. Charles Wu, President of uSenlight Corporation. “The integration and performance of the MxL93516 PAM4 DSP have enabled us to expand our portfolio by developing 100Gbps optical interconnects for hyperscale datacenters and wireless fronthaul applications.”
MACOM and MaxLinear Collaborate on 100G/400G/800G Solutions for Data Centers
“Our customers are requesting proven high-performance solutions,” said Marek Tlalka, Senior Director, High-Performance Analog, at MACOM. “This collaboration offers the industry a compelling performance proof point and a potential path to shorter design cycle times for 100G, 400G and 800G module manufacturers.”