Credo introduces 40Gbps PAM3 SerDes technology

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Credo Technology Group is making available its Ostrich 40G, PAM3 Serializer/Deserializer (SerDes) PHY/PMA Intellectual Property (IP).

The company’s Ostrich IP provides a silicon proven platform which moves to 40G speeds from existing 20G deployments as a wide range of industry connectivity standards continue the trend of doubling in speed. The specification, development, and verification of the Ostrich 40G PAM3 IP was undertaken in cooperation with an industry leader in the consumer market.

Commenting Bill Brennan, Credo’s President and Chief Executive Officer, said, “The data infrastructure market is experiencing an exponential increase in bandwidth demand. There is a revolution happening as new markets and standards, including those for applications such as consumer devices, small-to-medium sized business, automotive and others demand higher-speed connectivity at lower power.

“Credo is addressing the expansion of the connectivity ecosystem by delivering advanced IP solutions like our Ostrich 40G PAM3 SerDes, while in parallel providing complimentary IC product solutions. We firmly believe this strong focus on internal IP development will reap continued success with our traditional customers and allow us to gain tractions in these new growth markets.”

Ostrich is a multi-protocol high-speed SerDes supporting data rates up to 25.6Gbps NRZ and 40Gbps PAM3. A single bi-directional lane supports channel insertion loss up to 30dB bump-to-bump at 40Gbps with spread-spectrum clocking (SSC) enabled while achieving very low power to address all key application use cases.

Credo's SerDes technology enables silicon solution providers and OEMs to manufacture custom chip solutions in order to address new market opportunities, while delivering both performance and low- power system level requirements.

The company’s mixed signal approach was first applied with the move from NRZ to PAM modulation when Ethernet connectivity jumped from 25G to 50G. With new applications demanding two times the throughput, and current single-lane data rates maxing out in the 20G to 32G NRZ performance range, the move to advanced modulation schemes enables Credo to deliver higher performance at much lower power. To enable 40Gbps performance the company determined that PAM3 offered the best overall balance of performance and power.