Accelerating AI Infrastructure Connectivity

By enabling 1.6T connectivity in copper backplanes, AECs, and optical interconnects

Overview

MaxLinear PAM4 DSPs enable next generation electrical and optical interconnects in AI data centers


As AI training clusters transition to 224G per lane signaling, data center architects must balance bandwidth, power, cost, and reach. 

Optical interconnects remain essential for scale‑out networking, while electrical connectivity continues to offer advantages for scale‑up networking within and between racks.

Solution

Highly Integrated DSPs & TIAs
Enable Next Generation Optical and Electrical Interconnects


MaxLinear provides a full range of DSPs and TIAs for applications ranging from 100G to 1.6T, supporting 100G and 200G per lane electrical and optical I/O on both the host and line side interfaces for AI infrastructure connectivity.

Active Electrical Cable (AEC)

AEC

Optical Module

Optical Module

New Products

224G DSP for Scale-up 
Retimers and AEC

Enables sub-14W Copper Applications


  • Supports 40+dB channel loss
  • Multi-protocol support: Ethernet, ESUN, UALink, Ultra Ethernet
  • Ultra-low latency operation
  • Includes automated DPD to optimize transmitter performance across all laster technologies
  • Robust diagnostics


Read the Press Release

224G DSP for Scale-up Retimers and AEC224G DSP for Scale-up Retimers and AEC

Highly Integrated 1.6T PAM4 DSP Enables sub-25W Optical Modules


  • 4nm technology
  • Supports 200G/lane elestrical and optical I/O
  • Includes automated DPD to optimize transmitter performance across all laser technologies
  • Features low latency and robust diagnostics

1.6T PAM4 DSP1.6T PAM4 DSP

Rushmore DSP
1.6T PAM4
  • MxL91782: 1.6T PAM4 DSP
    • 1.6Tb/s capacity enabled by 8 × 200Gb/s PAM4 optical/electrical links
    • Bit rates supported: 53.125G-56.25G, 106.25G-112.5G, 212.5G-226.875G
    • Integrated 1.5V single-ended and > 3.0Vpp differential output, suitable for externally-modulated lasers (EMLs) and Mach-Zehnder modulators (MZMs)
    • Low latency < 65–77ns (Tx + Rx, with FEC bypassed)
    • 8mm x 6mm known good die

  • DR8, 2xFR4
  • OSFP optical modules and AOC cables
  • OSFP-XD optical modules and AOC cables
  • QSFP-XD optical modules and AOC cables
Keystone DSPs
400G/800G PAM4
  • Twelve low power options
  • Electrical interface supports 106.25Gbps (re-timer/Reverse-Gearbox mode) and 53.125Gbps (Gearbox mode) PAM4 signaling per lane.
  • Optical interface supports 106.25Gbps (re-timer/Gearbox mode) and 53.125Gbps (Reverse-Gearbox mode) PAM4 signaling per wavelength.
  • 12mm x 13mm package

  • DR8, 2xFR4, 2xLR4 (MxL9368x)
  • DR4, FR4, LR4, VR4/SR4
  • QSFP-DD800 (MxL9368x)
  • QSFP-DD optical modules
  • OSFP-DD optical modules
Topanga
56GBaud Linear TIAs
  • Three low power options
    • MxL9161: Single-Channel Linear TIA
    • MxL9164: 4-Channel Linear TIA, 250μm pitch
    • MxL9165: 4-Channel Linear TIA, 500μm pitch
    • MxL9168: 8-Channel Linear TIA, 250μm pitch
  • Supports 56GBaud PAM4 symbol rates
  • Multi-channel 100G TIAs offer best-in-class crosstalk performance
  • Available in bare die

  • QSFP-DD800 optical module
  • OSFP optical module
  • QSFP112 optical module
  • SFP optical module
  • CPO
  • 5G wireless fronthaul
DSPs
PAM4 DSPs - MaxLinear
PRODUCT PORTFOLIO
13 Products
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MxL91782
MxL91782
1.6T PAM4 DSP
Product Flyer Order Now
PRE (Pre-introduction)
1.6T PAM4 DSP
-
1.6T
8x200G
8x200G
-
-
DR8, 2xFR4
OSFP, OSFP-XD, QSFP-DD
Optical Modules, AOC
Die
8x6
MxL93642
MxL93642
400G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
400G PAM4 DSP with Integrated Driver
EML, SiPH
400G
4x100G
4x100G
-
-
DR4, FR4, LR4, VR4/SR4
QSFP112
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93642A
MxL93642A
400G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
400G PAM4 DSP with Integrated Driver
EML, SiPH
400G
8x50G
4x100G
✔
-
DR4, FR4, LR4, VR4/SR4
QSFP-DD, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93642C
MxL93642C
400G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
400G PAM4 DSP with Integrated Driver
SiPH, EML
400G
4x100G
8x50G
-
✔
SR8, 2xSR4
QSFP-DD, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93643
MxL93643
400G PAM4 DSP
Product Brief Order Now
Active
400G PAM4 DSP
-
400G
4x100G
4x100G
-
-
DR4, FR4, LR4, VR4/SR4
QSFP112
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93643A
MxL93643A
400G PAM4 DSP
Product Brief Order Now
Active
400G PAM4 DSP
-
400G
8x50G
4x100G
✔
-
DR4, FR4, LR4, VR4/SR4
QSFP112
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93643C
MxL93643C
400G PAM4 DSP
Product Brief Order Now
Active
400G PAM4 DSP
No
400G
4x100G
8x50G
-
✔
SR8, 2xSR4
QSFP-DD, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93644
MxL93644
400G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
400G PAM4 DSP with Integrated Driver
VCSEL
400G
4x100G
4x100G
-
-
VR4/SR4
QSFP112
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93644A
MxL93644A
400G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
400G PAM4 DSP with Integrated Driver
VCSEL
400G
8x50G
4x100G
✔
-
VR4/SR4
QSFP-DD, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93644C
MxL93644C
400G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
400G PAM4 DSP with Integrated Driver
VCSEL
400G
4x100G
8x50G
-
✔
SR8, 2xSR4
QSFP-DD, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93682
MxL93682
800G PAM4 DSP with Integrated Driver
Product Brief Order Now
Active
800G PAM4 DSP with Integrated Driver
EML, SiPH
800G
8x100G
8x100G
-
-
DR8, 2xFR4, 2xLR4, 2xVR4/SR4
QSFP-DD800, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93683
MxL93683
800G PAM4 DSP
Product Brief Order Now
Active
800G PAM4 DSP
No
800G
8 x 100G
8 x 100G
-
-
DR8, 2xFR4, 2xLR4, 2xVR4/SR4
QSFP-DD800, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
MxL93684
MxL93684
800G PAM4 DSP
Product Brief Order Now
PRE (Pre-introduction)
800G PAM4 DSP
VCSEL
800G
8 x 100G
8 x 100G
-
-
DR8, 2xFR4, 2xLR4, 2xVR4/SR4
QSFP-DD800, OSFP
Optical Modules, AEC/ACC, AOC
FC-FBGA
12x13
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TIAs
TIAs - MaxLinear
PRODUCT PORTFOLIO
3 Products
Export
MxL9161
MxL9161
56GBd PAM4 Single-Channel Linear TIA
Quality/RoHS Order Now
Active
56GBd PAM4 Single-Channel Linear TIA
1
26, 56
-
62.5 to 4500
38
Die
1.6 x 0.8
MxL9164
MxL9164
56GBd PAM4 4-Channel Linear TIA
Product Flyer Quality/RoHS Order Now
Active
56GBd PAM4 4-Channel Linear TIA
4
26, 56
250
62.5 to 4500
38
Die
3.0 x 2.5
MxL9168
MxL9168
56GBd PAM4 8-Channel Linear TIA
Product Flyer Quality/RoHS Order Now
Active
56GBd PAM4 8-Channel Linear TIA
8
26, 56
250
62.5 to 4500
38
Die
3.0 x 2.5
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