company blog about 【BROADCOM Ethernet PHY】BCM82391，BCM82391AKFSBG Dual 100G MACsec Retimer PHY

【BROADCOM Ethernet PHY】BCM82391，BCM82391AKFSBG Dual 100G MACsec Retimer PHY

Product Description of BCM82391AKFSBG
The Broadcom BCM82391 is a single-chip low-power, high-density PHY integrating IEEE 802.1AE MACSec GCM-AES-256b encryption, IEEE 1588 and retimer functions supporting 100-Gigabit Ethernet (GbE), 50 GbE, 40 GbE, 25GbE & 10GbE applications. In 100G, the BCM82391 supports two full-duplex 100G ports for SR4, LR4, CR4, ER4 applications. On-chip clock synthesis is performed by a low-cost 156.25 MHz reference clock via high-frequency, low jitter phase-locked loops (PLLs). The BCM82391 is available in a RoHS-compliant package.

Features of BCM82391AKFSBG
Dual 100G port with CAUI4-to-CAUI4 supports retimer/equalization/MACSec encryption functions in SR4, LR4, CR4, ER4 applications
Supports IEEE 1588 timestamping and ITU-T Y.1731 with Sync-E recovered clocks
Support 100G CL91 FEC for 802.3bj and 25G CL74/108 FEC for 802.3by applications
Integrated host side AC-coupling caps
Line-side and client-side loopbacks
Dual Supply - 1.0V and 1.8V/2.5V/3.3V

Applications of BCM82391AKFSBG
Support IEEE 802.1AE (dataplane) and IEEE 802.1AEbw-2013, including GCS-AES-256 and GCM-AES-128
MACSec encryption on high-speed 10G/25G/40G/50G/100G front panel line cards

BCM82391 Block Diagram