Broadcom 16nm 400GbE PAM-4 PHY (16:8) or (8:8) - BCM81188A0KRFBG
The Broadcom BCM81188 is a single-chip, low-power, low-latency PAM-4 PHY that integrates retimer and qualizer functions to support 400GbE applications. In 400GbE mode, the BCM81188 converts 16 × 25G NRZ or 8 × 50G PAM-4 host side into 8 × 50G PAM-4 line side to drive optical PAM-4 links inside next generation modules, including CFP8. The BCM81188 is compliant to 400G data in accordance with IEEE 802.3bs standards. The device also supports Broadcom's proprietary high gain Super-FEC (S-FEC) for extended reach applications. The BCM81188 supports both 400G and Quad 100G modes. 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 BCM81188 is fabricated in advanced low-power 16 nm CMOS technology and is available in a RoHS-compliant package.
Features
- 400GbE (8 × 50G PAM-4) PHY
- Host side: 16 × 25G NRZ or 8 × 50G PAM-4
- Line side: 8 × 50G PAM-4
- 400G PCS data from the client side
- CEI-28G/56G MR compliant
- Integrated host side AC-coupling caps
- Line-side and client-side loopbacks
- Pin-to-pin compatible to BCM82254
- IEEE 802.3bs standard-compliant FEC
- Proprietary high gain Super-FEC (S-FEC)
- Supports both MMF & SMF fiber links
- Low-power 16 nm CMOS design
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