The BCM8155 is an integrated single-chip cable modem solution designed by Avago Technologies. It is intended for use in DOCSIS/EuroDOCSIS 3.0 cable networks, enabling high-speed broadband access for residential and business customers. This chip integrates a complete cable modem system, including the media access controller (MAC), physical layer (PHY), and other necessary components, into a single package. This reduces the bill of materials (BOM) cost and simplifies the design process for cable modem manufacturers.

Applications

• DOCSIS/EuroDOCSIS 3.0 cable modems for residential broadband access.
• Cable modem gateways for home networking.
• Set-top boxes with integrated cable modem functionality.
• Embedded systems requiring DOCSIS 3.0 connectivity.

Features

• Compliant with DOCSIS/EuroDOCSIS 3.0 standards.
• Integrated MAC and PHY layers.
• Supports up to 8 downstream and 4 upstream channels.
• High data rates: Downstream speeds up to 343 Mbps and upstream speeds up to 123 Mbps.
• Advanced modulation schemes: 64QAM, 256QAM.
• Integrated PacketCable 1.5 voice support.
• Enhanced security features including Baseline Privacy Plus (BPI+).

Benefits

• Provides high-speed internet access for data-intensive applications.
• Reduces system cost and complexity due to high integration.
• Enhances security with BPI+ support.
• Enables reliable and efficient data transmission over cable networks.
• Facilitates deployment of advanced services such as VoIP.

Additional Details

The BCM8155 is typically packaged in a BGA (Ball Grid Array) package. It requires a 3.3V and 1.2V power supply and is designed to operate within a specified temperature range. It includes several power management features to minimize power consumption. The chip also supports advanced quality of service (QoS) mechanisms to prioritize traffic and ensure optimal performance for different applications. It is designed to be backward compatible with older DOCSIS standards, allowing for seamless integration into existing cable networks. Avago Technologies provides comprehensive software and hardware development tools to support the BCM8155, reducing time-to-market for cable modem manufacturers.