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Product Attributes

Overview

The BCM5221 is a single channel, low-power, 10/100BASE-TX/FX transceiver targeting a number of applications requiring intelligent power management and robust network tolerance. The BCM5221 operates at 3.3V or 2.5V. The devices contain a full-duplex 10BASE-T/100BASE-TX/100BASE-FX Fast Ethernet transceiver, which performs all of the physical layer interface functions for 10BASE-T Ethernet on CAT 3, 4, and 5 unshielded twisted pair (UTP) cable and 100BASE-TX Fast Ethernet on CAT 5 UTP cable. In addition, layout compatibility with the previous generation BCM5201 shortens the design cycle for the BCM5221. 100BASE-FX is supported through the use of external fiber-optic transmit and receive devices. 

The BCM5221 is a highly integrated solution combining a digital adaptive equalizer, ADC, phase lock loop, line driver, encoder, decoder and all the required support circuitry into a single monolithic CMOS chip. It complies fully with the IEEE 802.3u specification, including the Media Independent Interface (MII) and Auto-Negotiation subsections.

The effective use of digital technology in the BCM5221 design results in robust performance over a broad range of operating scenarios. Problems inherent to mixed-signal implementations, such as analog offset and on-chip noise, are eliminated by employing field proven digital adaptive equalization and digital clock recovery techniques.

Features

• Power supply: 2.5V or 3.3V

• Integrated voltage regulator to allow operation from a single supply source

• Power consumption: <275 mW

• Unique energy detection circuit to enable intelligent power management

• HP auto-MDIX

• Cable length indication

• Cable noise level indication

• Robust CESD tolerance

• Cable length greater than 140 meters

• Well under 10 PPM defect ratio quality

• +/-10% voltage tolerance

• Industrial temperature range (-40 to 85C)

• MII and RMII configurable

• IEEE 1149.1 (JTAG) scan chain support

• MII management via serial port

• Layout-compatible with BCM5201

• 10BASE-T/100BASE-TX/FX IEEE 802.3u fast Ethernet transceiver

• Glueless TX-to-FX media conversion

• 64-pin TQFP or 64-pin BGA package

Advantages and Disadvantages

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Applications

• PCMCIA/CardBus cards

• LAN on motherboard

• IP phones

• Cable modems

• Set-top boxes and print servers

• Wireless access points

• Embedded telecom

Compliance

ECCN / UNSPSC

Documents & Media

Product Manufacturer

Broadcom Inc. is a global infrastructure technology leader built on 50 years of innovation, collaboration and engineering excellence. With roots based in the rich technical heritage of AT&T/Bell Labs, Lucent and Hewlett-Packard/Agilent, Broadcom focuses on technologies that connect our world. Through the combination of industry leaders Avago Technologies, LSI, Broadcom Corporation, Brocade and CA Technologies, the company has the size, scope and engineering talent to lead the industry into the future.

Product Range

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