bcm5481 Broadcom Corp., bcm5481 Datasheet

bcm5481

Manufacturer Part Number

bcm5481

Description

Bcm5481 - 10/100/1000base-t Gigabit Copper Transceiver

Manufacturer

Broadcom Corp.

Datasheet

1.BCM5481.pdf (2 pages)

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Current page: 1 of 2
Download datasheet (118Kb)

•

Fully integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit

Ethernet transceiver

GMII, RGMII, and MII MAC interface options

On-chip low-voltage regulators

Fully compliant with IEEE 802.3™, 802.3u, and 802.3ab standards

0.13µ CMOS—low power and cost

Low power

Trace matched output impedance

Line-side loopback

Low electromagnetic interference (EMI) emissions

Cable-plant diagnostics

Robust CESD tolerance

Support for jumbo packets up to 10 KB

IEEE 1149.1 (JTAG) boundary scan

64-pin MLP, 68-pin MLP, 100-pin FBGA, and 100-pin QFP

packages

General Gigabit Ethernet Connectivity

- Less than 700 mW per port

- Advanced power management

- Cable plant analyzer function detects cable plant impairments

- Link quality indication LED

- Automatic detection and correction of wiring pair swaps, pair

- Automatic MDI/MDIX crossover at all speeds

10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER

skew, and pair polarity

F E A T U R E S

BCM5481

•

Simplifies system and board design.

Provides interoperability with IEEE standard devices

operating at 10 Mbps, 100 Mbps, and 1000 Mbps at half- and

full-duplex.

Lowers system bill of materials (BOM) cost and simplifies

system design.

Requires no airflow or heatsink.

Eases system level debug.

Reduces system design constraints to meet EMI emissions

standards.

Cable diagnostic function characterizes cable plant condition

and immediately indicates cabling issues.

High CESD tolerance prevents equipment damage and

return.

Operates with larger packets for wider range of packet

protocol support and improved efficiency.

Ease of manufacturing with JTAG support, simplified power

supply, and multiple MAC interfaces.

- Reduced I/O pin requirements with RGMII (over 50%).

- On-chip RGMII timing delay

- Prevents erroneous equipment return due to bad cable

- Prevents manufacturing fall-out due to bad cable plants.

S U M M A R Y O F B E N E F I T S

plants.

10/100 Mbps P HY

Oc tal

1000BASE-T Gigabit Uplink

24F E +2G

S witch

10/100 Mbps P HY

Oc tal

10/100 Mbps P HY

Oc tal

Related parts for bcm5481

bcm5481 Summary of contents

Page 1

... IEEE 1149.1 (JTAG) boundary scan • 64-pin MLP, 68-pin MLP, 100-pin FBGA, and 100-pin QFP packages General Gigabit Ethernet Connectivity BCM5481 • Simplifies system and board design. - Reduced I/O pin requirements with RGMII (over 50%). ...

Page 2

... IEEE requirements for Echo, NEXT, and FEXT. Low power is a key factor in implementing Gigabit small form factor NICs and uplinks and, at less than 700 mW per port, the BCM5481 has the industry's lowest power. Also, the BCM5481 has extremely low EMI emissions, which reduces the design constraints required to meet EMI emissions specifications ...

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