Broadcom BCM81385A0KFSBG

Overview

The BCM81381A0KFSBG is a low-power, low-latency PHY integrating retimer and equalizer functions that support 100-Gigabit Ethernet (GbE), 40GbE, 25GbEand 10GbE applications.In 100G mode, the BCM81381A0KFSBG supports two full-duplex 100G ports (CAUI4-to-CAUI4) for SR4, LR4, and copper CR4 CFP2/CFP4/QSFP2 line-card applications.In 40G mode, the BCM81381A0KFSBG supports two full-duplex 40GbE ports (XLPPI-to-XLAUI) for SR4, LR4, and copper CR4 QSFP+ line-card applications.In 25G/10G mode, the BCM81381A0KFSBG supports 8x25GbE/10GbE ports for SR, LR, and copper CR/KRapplications.On-chip clock synthesis is performed by a low-cost 156.25 MHz reference clock (for all IEEE Standard 10G/40G/100G rates) via high-frequency, low jitter phase-locked loops (PLLs). Individual clock recovery is performed on the device by synchronizing directly to the respective incoming data streams.The BCM82381 was designed in 28nm CMOS technology to provide a low-power, low-latency solution with integrated AC coupling capacitors for direct interfacing to Broadcom’s switch products. The BCM82381 is available in a 19mm x 19mm, 324-pin BGA, RoHS-compliant package.

Features