BCM5400 Datasheet, PDF (2/2 Pages) Broadcom Corporation. – 100/1000 BASE-T GIGABIT ETHERNET TRANSCEIVER

BCM5400 OVERVIEW
TRD + {0:3}
XTAL1
XTAL0
RDAC
TX DAC
Automatic
Gain
Control
PGA
ADC
Clock
Generator
Bias
Generator
Echo
Canceller
Next
Canceller
DFE/
FFE
Trellis
Decoder
Timing &
Phase
Recovery
Symbol
Encoder
Symbol
Decoder/
Aligner
Led
Drivers
MII
Registers
MII
MGMT
Control
TXD[7:0]
TX_EN
TX_ER
GTX_CLK
TX_CLK
COL
CRS
RX_CLK
RX_DV
RX_ER
RXD[7:0]
/LNK100
/LNK1000
/RCVLED
/XMTLED
/FDXLED
MDC
MDIO
/INTR
MODE
The Broadcom^® BCM5400 is a complete 10/100/1000BASE-T
solution operating on standard grade CAT 5 unshielded
twisted pair (UTP) cable. The device integrates all of the
circuitry required for 100/1000BASE-T Ethernet on-chip, and
provides a glueless interface to an external 10BASE-T
transceiver for 10/100/1000BASE-T support. The chip is
based on a highly advanced DSP architecture combining
digital adaptive equalizers, encoders, decoders, echo
cancellers, crosstalk cancellers, ADCs, phase lock loop, line
drivers, and all required support circuitry. The BCM5400
easily interfaces to Ethernet MACs and repeater controllers
that are compliant with the IEEE 802.3 GMII (Gigabit Media
Independent Interface), or TBI (10-bit interface for SERDES).
A 125-MHz clock with low jitter is generated internally to
eliminate external clocking circuitry for the GMII or TBI
interfaces.
The BCM5400 makes Gigabit Ethernet network equipment
easier to install by automatically detecting and correcting the
most common wiring problems. These include the ability to
automatically configure MDI crossover, correct pair swaps, pair
skew, and pair polarity problems. Plug and Play operation is
achieved through support of IEEE auto-negotiation for
10/100/1000 Mbps in full- and half-duplex modes.
In 1000BASE-T mode, the BCM5400 transmits and receives data
on CAT 5 UTP using a five-level pulse amplitude modulated
(PAM5) data stream. The chip transmits and receives data
simultaneously on all four pairs of the UTP cable. In 100BASE-
TX mode, the BCM5400 transmits and receives data on separate
pairs using a three-level MLT3 encoded serial data stream in
accordance with the IEEE 802.3u standard. The BCM5400
integrates a complete transceiver from GMII, or TBI, to magnetics.
Broadcom^®, the pulse logo, and Connecting everything^® are trademarks of Broadcom Corporation and/or its
subsidiaries in the United States and certain other countries. All other trademarks are the property of their
respective owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2003 by BROADCOM CORPORATION. All rights reserved.
5400-PB02-R 06.25.03
Phone: [phone]
FAX: [phone]
Email: [e-mail]
Web: www.broadcom.com