Semtech Corp. (NASDAQ: SMTC) has added to its Tri-Edge CDR portfolio with the GN2538 and GN2539. Now in full production, the latest Tri-Edge CDR chipset focuses on support of 100G designs for multimode fiber network applications up to 100 m.
The GN2538 is a dual-channel 50G PAM4 CDR with integrated VCSEL drivers. The GN2539 also is a dual channel 50G PAM4 CDR, but with integrated linear transimpedence amplifiers (TIAs). The GN2538’s integrated laser driver includes proprietary VCSEL compensation to enable a wide range of VCSEL options with fully adaptive input equalization and “easy startup,” says Semtech. The integrated linear TIA in the GN2559 is designed for superior receiver performance with reliable adaptation and includes configurable output de-emphasis. Both devices are designed for low power and reduced latency operation.
“Our customers have fully tested the solutions confirming interoperability with 100G ports of commercial Ethernet switches used in major data centers. The integration offered by the analog PAM4 GN2538 and GN2539 chipset enables reduced cost and delivers the highly desired low-power and low-latency performance that meets the needs of high-performance computing (HPC), artificial intelligence (AI), and cloud data center networks. This chipset is also fully compliant to the 50G-per-lane multimode fiber Open Eye MSA specification,” said Julius Yam, market manager, data center products in Semtech’s Signal Integrity Products Group.
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