It supports up to four 192MHz-wide OFDM channels for downstream traffic, doubling the capacity of previous-generation DOCSIS 3.1 chips.
The Broadcom 3392 is suitable for a range of applications, including:
: As of early 2025, the BCM3392 has passed DOCSIS certification and is in active production. Device Adoption : Hardware manufacturers like Compal Broadband Networks (CBN)
The BCM3392 doubles key spectrum processing capabilities compared to legacy DOCSIS 3.1 hardware. It allows operators to maximize data efficiency within their current spectrum allocations. broadcom 3392
The Broadcom 3392 represents a calculated, highly efficient evolution of silicon technology. By multiplying the capacity of existing DOCSIS 3.1 spectral paths, it prevents a costly premature rush to upgrade end-to-end node infrastructures. For ISPs looking to defend their market share against fiber rollouts, and for hardware manufacturers eager to build high-capacity modems, the BCM3392 stands as one of the most practical and high-utility broadband chips available on the market today.
This hardware solution allows cable operators to delay capital-intensive fiber-to-the-premises (FTTP) or full DOCSIS 4.0 upgrades while delivering multi-gigabit downstream performance. Key Technical Specifications
To achieve this, the BCM3392 utilizes a combination of four 192-MHz-wide channels and 32 single-carrier QAM downstream channels. This is a notable upgrade from the preceding BCM3390 chip, which only supported two OFDM channels. The BCM3392 effectively doubles this count. It supports up to four 192MHz-wide OFDM channels
| Chipset | CPU Cores | Hardware NAT | USB Speed | OpenVPN | Verdict | | :--- | :--- | :--- | :--- | :--- | :--- | | | Dual A9 (1.6Ghz) | Yes (Runner) | 60 MB/s | Poor | Stable & Fast routing | | Qualcomm IPQ8064 | Dual Krait (1.4Ghz) | Yes | 100 MB/s | Fair | Better for VPN | | Mediatek MT7621 | Dual MIPS (880Mhz) | Yes | 40 MB/s | Very Poor | Budget option | | Intel Puma 7 | Quad A7 (1.2Ghz) | Yes | 80 MB/s | Poor | Avoid due to lag |
In the broader context of global broadband competition, cable operators are facing immense pressure from symmetrical FTTH deployments. While DOCSIS 4.0 offers a path to unified 10G symmetrical speeds, the upgrade cycle involves replacing amplifiers, taps, and nodes across the physical plant.
While Broadcom has kept formal public documentation sparse on their main product pages, the chip is rapidly becoming the industry standard for "boosted" DOCSIS 3.1 deployments. It allows operators to maximize data efficiency within
The technical prowess of the BCM3392 lies in its sophisticated use of the DOCSIS 3.1 specification to maximize spectral efficiency.
: Developing a full lineup of data gateways leveraging the 3392.