Broadcom BCM82381 PHY Technology DUAL 100GbE CAUI4-to-CAUI4 PHY/OCTAL 25G RETIMER Low-power retimer/equalizer PHY (<2.5W per 100GbE bidirectional port, including 100G FEC Overview equivalent to <300 mW per 25G unidirectional The Broadcom BCM82381 is a low-power, low- channel for 25G retiming mode). latency PHY integrating retimer and equalizer func- Seamless high-speed I/O routing to modules. tions that support 100-Gigabit Ethernet (GbE), Integrated AC-coupling capacitors on all high- 40GbE, and 10GbE applications. In 100G mode, the speed receivers. BCM82381 supports two full-duplex 100G ports High-performance receive equalization ~30 dB at system side and ~35 dB at line side for chan- (CAUI4-to-CAUI4) for SR4, LR4, and copper CR4 nel loss. CFP2/CFP4/QSFP2 line-card applications. In 40G Highlights Programmable transmit preemphasis for flexi- mode, the BCM82381 supports two full-duplex ble PHY placement. 40GbE ports (XLPPI-to-XLAUI) for SR4, LR4, and IEEE 802.3bj, 802.3ba standard- IEEE 802.3bj 100GbE CR4 Clause 92 transmit compliant device copper CR4 QSFP+ line-card applications. In 10G training IEEE 802.3ba 40GbE CR4 Clause 85 mode, the BCM82381 supports eight full-duplex Dual 100GbE ports with CAUI4- transmit training. 10GbE ports (SFI-to-XFI) for SR, LR, and copper CR to-CAUI4 port support SR4/LR4/ Supports IEEE 802.3bj Clause 91 Forward Error CR4 CFP2/CFP4/QSFP2 retimer/ SFP+ line-card applications. Correction (FEC) and bypassable. equalization applications On-chip clock synthesis is performed by a dual low- Supports Fibre Channel rates: 32G/16G/8G/4G Octal 25G retimer mode cost 156.25 MHz reference clock (for all IEEE Stan- FC. Supports 32G/16G/8G/4G Fibre dard 10G/40G/100G rates) via high-frequency, low- Supports individual 25G lane retiming mode. Channel rates jitter phase-locked loops (PLLs). Individual clock Line-side and system-side loopbacks. Low-power 28 nm CMOS recovery is performed on the device by synchroniz- Single low-cost 156.25 MHz reference clock. ing directly to the respective incoming data Standard two-wire serial interface (BSC) sup- streams. port for external modules. Low-speed module I/O control signals for The BCM82381 was designed in 28 nm CMOS tech- CFP2, CFP4, and QSFP2. nology to provide a low-power (<2.5W per 100G MDIO interface compliant with IEEE 802.3ae full-duplex port, including 100G FEC), low-latency Clause 45 with extended indirect address reg- (<5 ns round trip) solution with integrated AC cou- ister access. pling capacitors for direct interfacing to Broad- Advanced diagnostics, including eye-mapping coms switch products. and BER with PRBS generators/checkers. The BCM82381 is available in a 19 mm x 19 mm, Dual-supply operation1.0V/3.3V. 324-pin BGA, RoHS-compliant package. Applications Features High-density line cards support 100GbE CAUI4- Dual 100GbE ports with CAUI4-to-CAUI4 port to-CAUI4, 40GbE XLPPI-to-XLAUI, and 10GbE BCM82380 support SR4/LR4/CR4 CFP2/CFP4/QSFP2 SFI-to-XFI Service retimer/equalization applications. 100GbE CPF2/CFP4/QSFP2 optical and copper Provider Dual 40GbE channels with two XLPPI-to-XLAUI interfaces support SR4, LR4, and copper CR4 ports support SR4/LR4/CR4 QSFP+ retimer/ 40GbE QSFP+ optical and copper interfaces OTN/PTN equalization applications. support SR4, LR4, and copper CR4 10G mode with eight independent 10GbE/ Supported 10GbE SFP+ optical and interfaces support SR, Data Centers 1GbE SFI-to-XFI channels support SR/LR/CR LR, and CR application SFP+ retimer/equalization applications. Sup- Enterprise ports an intermix of 1GbE and 10GbE opera- tions on a per-lane basis. Supported Best Choice Low-latency design (<5 ns round trip).BCM82381 4 4 CFP2/ CAUI4 Port A CAUI4 CFP4/ 100G (4 x 25G) QSFP2 4 4 Module IO Control Switch 4 4 CFP2/ CAUI4 Port B CAUI4 CFP4/ 100G (4 x 25G) QSFP2 4 4 Module IO Control Functional Block Diagram Part Number Ordering Information Dual 100GbE CAUI4-to-CAUI4 PHY/Octal 25G Retimer BCM82381 About Broadcom Broadcom Corporation (NASDAQ: BRCM), office, and mobile environments. With the a FORTUNE 500 company, is a global industry s broadest portfolio of state-of- leader and innovator in semiconductor the-art system-on-a-chip and embedded solutions for wired and wireless software solutions, Broadcom is changing communications. Broadcom products the world by Connecting everything. For seamlessly deliver voice, video, data, and more information, go to multimedia connectivity in the home, www.broadcom.com. Broadcom, the pulse logo, Connecting everything, and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. July 29, 2013 82381-PB100-R CAUI4 CAUI4