Wired Connectivity

Semtech begins production of bidirectional analog PAM4 CDR ICs

21 September 2022

Semtech Corp. has begun production of its Tri-Edge bidirectional analog pulse amplitude modulation 4-level (PAM4) clock and data recovery (CDR) IC for 5G deployment.

The GN2256 device includes an integrated differential driver for low latency, low power and use of low cost 25 Gbps bandwidth optics to operate at 50 Gbps PAM4.

The semiconductor can be used with different architectures based on different geographic regions for deployments in the wavelength division multiplexing (WDM) segment, which sends and receives multiple signals using differing wavelengths on a single fiber.

The chip has a proprietary driver architecture to enable such 50 Gbps WDM optical solutions using EML and future silicon photonics MZM optics. GN2256 combines Semtech’s analog Tri-Edge technology with enhanced laser driver compensation to enable IEEE and Open Eye MSA compliant optical modules over industrial temperature ranges.

To contact the author of this article, email engineering360editors@globalspec.com

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