Credo’s new DSPs to drive sustainability in next-gen data centres and AI

Credo Technology Group introduced the new Dove 800D and 410D PAM4 DSPs ICs to accelerate time-to-market and address the increasing bandwidth requirements of hyperscale customers, AI backend clusters and general compute applications.

These 8x100G and 4x100G per lane devices incorporate VCSEL drivers and fourth generation DSP technology which combined, creates an optimised, high-performance, small footprint solution that meets the increasingly stringent energy efficiency requirements of hyperscalers. The Dove 800D and 410D DSPs are tailored for multimode optical fibre (MMF) applications.

“The newest hyperscale buildouts require an increasing number of optical fibre connections driven by applications such as AI and machine learning,” said Michael Girvan Lampe, Vice President of Worldwide Sales and Marketing at Credo. “The majority of this traffic is sent over short 400G and 800G MMF links using optical SR4/SR8 modules or Active Optical Cables (AOCs). Dove 800D and 410D DSPs, with integrated VCSEL drivers, address this expanding market and enable our customers to simplify their PCB design while reducing overall module costs.”

The Dove 800D is ideal for next-generation, low-power, high-performance 2x400G, or 1x800G OSFP and QSFP-DD800 optical transceivers. The Dove 410D is optimised for 2x200G or 1x400G QSFP112 optical transceivers. Both devices include integrated Credo VCSEL drivers. Dedicated PLLs for each transmit and receive data lane enable a wide range of breakout applications. High-performance optical and electrical host side DSP technology, together with specialised performance enhancing features, compensate for optical and electrical impairments while maintaining low power dissipation.

Dove 800D and Dove 410D feature 100G PAM4 support on both electrical and optical sides, utilising fourth-gen DSPs for superior sensitivity and Bit Error Rate performance. They address optical impairments in MMF environments, integrate 100G VCSEL drivers, and offer precise optimisation with multi-tap FIR filters. These DSPs support flexible breakout configurations and streamline testing, reducing time-to-market. Their low-power design enhances rack utilisation and reduces thermal cooling needs, promoting sustainability in data centres.

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