The primary feature of the BCM3392 is its ability to support
It supports up to four 192MHz-wide OFDM channels for downstream traffic, doubling the capacity of previous-generation DOCSIS 3.1 chips.
It is available to all vendors and operators worldwide, making it a critical tool for competitive parity against fiber-to-the-home (FTTH) services. Light Reading Production Status: broadcom 3392
The Broadcom 3392 runs . The chip is manufactured on a 40nm or 28nm process (depending on the revision), which is ancient by smartphone standards. In enclosed modem/router combos (gateways), the 3392 frequently hits 85°C–95°C.
For cable operators (such as Comcast, Charter, and Virgin Media), the BCM3392 offered a strategic advantage. It allowed them to offer competitive “multi-gig” services over existing coaxial wiring—the same infrastructure already connected to over 90% of American homes—without the astronomical expense of running new fiber to each residence. The chip’s power efficiency and high integration level also reduced the bill of materials (BOM) for retail cable modems and gateways, fostering a healthy competitive market for consumer premises equipment (CPE). The primary feature of the BCM3392 is its
: It is frequently paired with Wi-Fi 7 technology in new customer premises equipment (CPE) to ensure that the increased network speeds can be fully utilized by wireless devices in the home. Market Availability and Adoption
: Integrates 32 single-carrier QAM downstream channels. The chip is manufactured on a 40nm or
At its core, the BCM3392 is a highly integrated SoC designed to satisfy the rigorous demands of the Data Over Cable Service Interface Specification (DOCSIS) 3.1. Unlike a simple analog modem, the BCM3392 is a complete digital communications processor. It integrates a powerful packet processor, a high-speed Forward Error Correction (FEC) engine, a flexible upstream scheduler, and critical interface blocks like Gigabit Ethernet, USB, and PCI Express.
