Broadcom BCM5461SA1PFG Gigabit Ethernet Transceiver Datasheet and Design Guide

The Broadcom BCM5461SA1PFG is a highly integrated, single-port Gigabit Ethernet transceiver designed to deliver robust performance in networking applications. This device combines a physical layer transceiver (PHY) with a copper media access controller (MAC) interface, supporting 10/100/1000 Mbps data rates over twisted-pair copper cabling. It is engineered to meet the demanding requirements of modern network infrastructure, including switches, routers, network interface cards (NICs), and embedded systems.

Key Features and Specifications

The BCM5461SA1PFG leverages advanced DSP technology to ensure superior signal integrity and low power consumption. It supports auto-negotiation and auto-MDI/MDIX, simplifying installation and reducing manual configuration. The device is compliant with IEEE 802.3, 802.3u, and 802.3ab standards, ensuring interoperability with other Ethernet components. Its integrated voltage regulators enhance power efficiency, while the robust ESD protection safeguards against electrostatic discharge events.

Design Considerations

When designing with the BCM5461SA1PFG, attention to PCB layout is critical. Proper grounding, decoupling, and signal routing are essential to minimize EMI and maintain signal quality. The reference design guide recommends using matched impedance traces for differential pairs to reduce attenuation and reflections. Additionally, thermal management should be addressed via adequate copper pours or heatsinks if operating in high-temperature environments.

Applications

This transceiver is ideal for enterprise networking equipment, industrial automation, and telecommunications hardware. Its low-latency performance makes it suitable for real-time applications, while its compatibility with various MAC interfaces (e.g., RGMII, SGMII) offers design flexibility.

ICGOODFIND: The Broadcom BCM5461SA1PFG is a reliable, high-performance Gigabit Ethernet solution, optimized for ease of integration and energy efficiency. Its comprehensive datasheet and design guide provide engineers with the necessary resources to implement stable and efficient network designs.

Keywords: Gigabit Ethernet, Physical Layer Transceiver, Auto-Negotiation, Low Power Consumption, IEEE 802.3 Compliance.