If you search for "Broadcom 3392" on eBay or tech forums, you will typically find it inside specific hardware models. The chip was a favorite of ASUS, Netgear, Linksys, and ARRIS.
| Feature | Benefit | | :--- | :--- | | DOCSIS 3.1 | Enables multi-gigabit speeds over standard coax cable. | | OFDM/OFDMA | Greater efficiency and reliability in noisy cable environments. | | Backward Compat. | Works perfectly on older DOCSIS 3.0 networks. | | Integrated SoC | Lower power consumption and smaller device footprint. | | High Bandwidth | Supports the bandwidth requirements of 4K/8K streaming and VR/AR applications. |
Note: Specifications regarding exact channel counts (e.g., 32x8 vs 32x4) can vary slightly depending on the specific firmware configuration applied by the hardware manufacturer, but the BCM3392 is universally classified as a high-throughput DOCSIS 3.1 solution.
Broadcom BCM3392 is an upgraded DOCSIS 3.1 cable modem chipset designed to "stretch" the capabilities of existing network infrastructures. It is a key component of what the industry often refers to as DOCSIS 3.1+ or "DOCSIS 3.1 Extended". Light Reading Key Informative Features Enhanced Downstream Capacity:
The primary feature of the BCM3392 is its ability to support
four Orthogonal Frequency Division Multiplexing (OFDM) channels Higher Speeds on Existing Infrastructure:
By leveraging these additional channels, the chipset allows cable operators to deliver downstream speeds of 5 Gbit/s to 8 Gbit/s without requiring a full transition to DOCSIS 4.0. Hardware Certification: The chip was sampled in 2023, achieved
DOCSIS certification in 2024, and is currently in active production. Broadband and Wi-Fi Synergy: It is frequently paired with
technology in new customer premises equipment (CPE), such as the Vantiva CGA 438A Light Reading Strategic Significance
The BCM3392 is strategically positioned to "buy time" for operators. It allows them to offer competitive multi-gigabit services using their current CMTS (Cable Modem Termination System) broadcom 3392
chassis, requiring only software updates to unlock the additional OFDM channels. Light Reading works in this chipset? Broadcom's grip on DOCSIS 4.0 chips remains a concern
Broadcom, called the BCM3392, It buys us time to provide the faster services that customers are looking for." Light Reading DOCSIS 3.1+ gets ready to roll - Light Reading
DOCSIS 3.1 modems outfitted with new chipsets that enable cable operators to supercharge downstream speeds are hitting the market. Light Reading Broadcom's grip on DOCSIS 4.0 chips remains a concern
Broadcom, called the BCM3392, It buys us time to provide the faster services that customers are looking for." Light Reading DOCSIS 3.1+ gets ready to roll - Light Reading
DOCSIS 3.1 modems outfitted with new chipsets that enable cable operators to supercharge downstream speeds are hitting the market. Light Reading
The Broadcom BCM3392 is a next-generation System-on-a-Chip (SoC) designed to push the boundaries of DOCSIS 3.1 technology. Often referred to in the industry as "DOCSIS 3.1+," "Extended DOCSIS 3.1," or "Ultra DOCSIS," this chipset provides a high-performance bridge for cable operators who want to offer multi-gigabit speeds without the immediate cost of a full DOCSIS 4.0 upgrade. Key Specifications and Technical Features
The BCM3392 serves as the direct successor to the widely deployed BCM3390. Its primary enhancement is its ability to handle significantly more data through advanced channel bonding:
Four OFDM Downstream Channels: Unlike the BCM3390, which supports two 192MHz-wide Orthogonal Frequency Division Multiplexing (OFDM) channels, the BCM3392 supports four.
Boosted Throughput: This increase in OFDM support allows for downstream capacities ranging from 5 Gbit/s to 8 Gbit/s, placing it well ahead of standard DOCSIS 3.1 hardware. If you search for "Broadcom 3392" on eBay
Software Compatibility: It typically includes full support for RDK-B (Reference Design Kit for Broadband) and packet cable voice applications. Strategic Importance for Operators
One of the most significant aspects of the BCM3392 is its commercial availability. Unlike Broadcom’s DOCSIS 4.0 chipsets, which are currently restricted by Joint Development Agreements (JDAs) to a select few major operators (such as Comcast and Charter), the BCM3392 is "unencumbered".
This means any cable provider or hardware manufacturer worldwide can source this chip to build high-speed modems. This provides a vital "stretch" or "bridge" technology, allowing operators to stay competitive against fiber-to-the-home (FTTH) services while they plan their long-term transition to newer standards. Real-World Applications and Hardware
Several leading Customer Premises Equipment (CPE) manufacturers have already integrated the BCM3392 into their product lines:
Compal Broadband Networks (CBN): Announced a full portfolio of data modems and gateways powered by the BCM3392.
Vantiva (formerly Technicolor): Developed the CVA438z (a cable modem/VoIP adapter) and the CGA438A (a DOCSIS 3.1 gateway) using the chipset.
Target Devices: The chip is primarily intended for high-end residential gateways, standalone broadband modems, and sophisticated home networking setups.
The BCM3392 was sampled in 2023, passed DOCSIS certification in 2024, and is currently in full production. BCM3390 - Broadcom Inc.
Broadcom BCM3392 is a next-generation system-on-chip (SoC) designed to extend the capabilities of DOCSIS 3.1 cable networks. Often referred to in the industry as DOCSIS 3.1+ Ultra DOCSIS Note: Specifications regarding exact channel counts (e
, this chipset allows cable operators to significantly boost internet speeds without immediately transitioning to more expensive DOCSIS 4.0 infrastructure. Key Features and Capabilities Enhanced Throughput : The BCM3392 supports up to
four OFDM (Orthogonal Frequency Division Multiplexing) channels
, expanding the bandwidth available to end-users compared to previous generations. Operational Longevity
: By "stretching" the performance of DOCSIS 3.1, the chip buys time for internet service providers (ISPs) to provide faster services—potentially reaching multi-gigabit speeds—using their existing network architecture. Production Status
: As of early 2025, the BCM3392 has passed DOCSIS certification and is in active production. Device Adoption : Hardware manufacturers like Compal Broadband Networks (CBN)
have already integrated the chipset into a lineup of high-performance data modems and gateways. Strategic Importance The BCM3392 is expected to succeed the widely used
. Because it offers improved performance with only an incremental increase in price, it is positioned to become the primary choice for modern DOCSIS 3.1 customer premises equipment (CPE).
For technical documentation on broader Broadcom storage and mainframe topics, you can explore the Broadcom TechDocs portal currently using this chip or the speed benchmarks it can achieve?
The Broadcom BCM3392 is a highly integrated system-on-a-chip (SoC) designed for the next generation of cable gateways, combining DOCSIS 3.1 physical layer (PHY) processing with a powerful application processor. This paper examines the architecture, key features, performance characteristics, and typical deployment scenarios of the BCM3392. Positioned as a solution for multi-gigabit home networking, the BCM3392 enables service providers to deliver data rates exceeding 1 Gbps downstream while supporting concurrent high-speed Wi-Fi and Ethernet backhaul.
As cable operators migrate from DOCSIS 3.0 to DOCSIS 3.1 and beyond, the demand for SoCs capable of handling higher channel bonding, lower latency, and increased upstream capacity has grown. The Broadcom BCM3392 addresses these requirements by integrating a DOCSIS 3.1 PHY, a high-performance CPU subsystem, packet processing engines, and multiple networking interfaces onto a single die. It is commonly found in premium cable modems, residential gateways, and integrated access devices (IADs).
The BCM3392 fully complies with the DOCSIS 3.1 standard, a significant leap over DOCSIS 3.0. This allows for: