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Semtech Expands Industry’s Most Comprehensive 5G Wireless Front Haul Portfolio With its Latest 50Gbps Tri-Edge™ CDR IC Solution

GN2256 is a bidirectional Tri-Edge CDR with integrated differential EML driver for 50Gbps SFP56 PAM4 5G wireless optical modules

CAMARILLO, Calif., Apr. 7, 2021 – Semtech Corporation (Nasdaq: SMTC), a leading supplier of high performance analog and mixed-signal semiconductors and advanced algorithms, today announced sampling of the newest member of its Tri-Edge™ CDR portfolio, the GN2256. Integrating Semtech’s proven Tri-Edge CDR platform with a differential EML (Externally Modulated Laser) driver, the GN2256 is the industry’s first such IC solution to enable 50Gbps PAM4 Fixed-WDM (Wavelength Division Multiplexing), Tunable WDM and Silicon Photonics optical modules. As with all Tri-Edge ICs, the GN2256 offers ultra-low latency, low power and use of low cost 25Gbps bandwidth optics to operate at 50Gbps PAM4.

The approach to expanding 5G wireless infrastructure bandwidth differs based on geographic region, deployment area considerations and carrier preferences. This often requires different types of optical modules in 5G wireless front haul links. In regions where it is typically difficult to install more fiber or reduce overhead costs, carriers utilize “colored” optical modules that send and receive multiple signals using differing wavelengths on a single fiber. These optical modules are also referred to as WDM optical modules and are critical for the 5G wireless infrastructure, especially for countries like Japan, Korea and the U.S. The GN2256 combines Semtech’s proprietary analog Tri-Edge technology with enhanced laser driver compensation to enable IEEE and Open Eye MSA compliant optical modules over industrial temperature ranges. Semtech’s Tri-Edge 5G platform addresses the full range of optical modules needed for all regions by enabling multiple types of SFP56 optical modules operating at 50Gbps PAM4.

“With the introduction of the GN2256 Tri-Edge IC, Semtech has established itself as the leader in 5G wireless front haul deployments with a truly differentiated and comprehensive IC portfolio. Semtech is a one-stop shop for our optical module partners and system vendors to enable worldwide 5G wireless front haul deployments,” said Raza Khan, senior market manager for Semtech’s Signal Integrity Products Group.

The GN2256 is now available for sampling and Semtech will also offer a complete Reference Design Kit (RDK) including complete module-level firmware to enable rapid adoption of Semtech’s solution.

Semtech’s 5G wireless Tri-Edge CDR portfolio includes:

  • GN2255: Bidirectional 50Gbps PAM4 Tri-Edge CDR with Integrated DML driver
  • GN2256: Bidirectional 50Gbps PAM4 Tri-Edge CDR with Integrated Diff EML driver

Semtech’s comprehensive 5G wireless ClearEdge® CDR portfolio includes:

  • GN2152: Bidirectional 24-28Gbps ClearEdge CDR with Integrated DML Driver
  • GN2146: Bidirectional 24-28Gbps ClearEdge CDR with Integrated EML / MZM Driver
  • GN2154: Bidirectional 24-28Gbps ClearEdge CDR with Integrated SE EML Driver
  • GN2148: Single 24-28Gbps ClearEdge CDR with Integrated VCSEL Driver
  • GN2149: Single 24-28Gbps ClearEdge CDR with Integrated TIA

Semtech’s 5G wireless FiberEdge TIA portfolio includes:

  • GN1086: 24-28Gbps FiberEdge TIA
  • GN1089 / GN1800: 50Gbps PAM4 FiberEdge TIA

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