Broadcom BCM6715B0KFFBG: Datasheet, Features, and Application Integration
The Broadcom BCM6715B0KFFBG is a highly integrated system-on-a-chip (SoC) designed to serve as a high-performance Optical Network Unit (ONU) for fiber access networks, specifically in XGS-PON, NG-PON2, and 10G EPON applications. It combines a powerful CPU, advanced security features, and multiple high-speed interfaces into a single, compact package, making it a cornerstone for modern fiber-to-the-home (FTTH) and fiber-to-the-premises (FTTP) equipment.
Key Datasheet Parameters
Part Number: BCM6715B0KFFBG
Architecture: Integrated Dual-Core ARM Cortex-A53 CPU
Target Application: 10G Symmetrical PON ONU
Upstream/Downstream Rate: Up to 10 Gbps
Memory Interface: Integrated DDR3/4 SDRAM controller
Package: 15mm x 15mm FCBGA (Flip-Chip Ball Grid Array)
Interfaces: Native support for USXGMII, XFI, SGMII+, RGMII, and SerDes interfaces for direct fiber module connection.
Standout Features
The BCM6715B0KFFBG stands out in the competitive PON market due to its robust integration and feature set:
High Level of Integration: It consolidates the ONU MAC, PHY, a powerful host processor, and a TCP/IP accelerator into one chip. This significantly reduces the bill of materials (BOM) and overall system design complexity.
Carrier-Class Performance: The integrated dual-core ARM Cortex-A53 processor, clocked at over 1 GHz, provides ample computational power for data plane processing, customer-premises equipment (CPE) management, and value-added services without needing an external CPU.
Advanced Security: The chip includes a dedicated hardware-based encryption engine supporting AES and DES/3DES, which is crucial for securing data traffic over the network and ensuring subscriber privacy.
Flexible Network Interfaces: Its support for multiple interface standards (USXGMII, XFI, RGMII) offers designers flexibility in connecting to various optical modules and residential gateways, supporting both Ethernet and PON WAN links.
Low Power Consumption: Designed for energy efficiency, it is an ideal solution for consumer premises equipment (CPE) where thermal management and power budgets are constrained.
Application Integration
Integrating the BCM6715B0KFFBG is central to developing next-generation 10G PON Optical Network Terminals (ONTs) and residential gateways. Its reference designs typically include:
10G PON OLT Link: The chip manages the entire physical and data link layer communication with the service provider's Optical Line Terminal (OLT).
Wi-Fi 6/6E & Ethernet Backhaul: The high-speed interfaces (e.g., USXGMII) can seamlessly connect to a companion Wi-Fi 6/6E SoC (like a Broadcom Wi-Fi chipset) and multi-gig Ethernet switches, creating a powerful 10G-capable whole-home gateway.
VoIP and IPTV Services: The processing headroom allows it to efficiently handle triple-play services (data, voice, and video) with quality of service (QoS) guarantees.
Designers benefit from Broadcom's comprehensive software development kit (SDK), which includes drivers, protocol stacks (e.g., OMCI for PON management), and sample code to accelerate time-to-market.
The Broadcom BCM6715B0KFFBG is a highly integrated and powerful SoC that simplifies the design of next-generation 10G PON customer premises equipment. By combining a high-performance CPU, robust security, and flexible connectivity into a single chip, it enables manufacturers to develop feature-rich, carrier-class ONTs and gateways that meet the growing demand for multi-gigabit broadband services.
Keywords:
1. 10G PON ONU
2. XGS-PON
3. ARM Cortex-A53
4. Hardware Encryption
5. System-on-a-Chip (SoC)
