bcm5466sr Broadcom Corp., bcm5466sr Datasheet - Page 2

• Manufacturer Part Number: bcm5466sr
• Description: Bcm5466sr - Quad-port 10/100/1000base-t Gb Transceiver With Copper/fiber Media Interface
• Manufacturer: Broadcom Corp.

T he BCM5466SR is a member of Broadcom’s QuadSquad™ family of
quad Gigabit Ethernet PHYs. It consists of four complete 10/100/
1000BASE-T Gigabit Ethernet transceivers integrated on a single
monolithic CMOS chip. The BCM5466SR is optimized for low power and
small footprint size to enable high-port-density applications. The
BCM5466SR enables a new class of cost-effective Gigabit Ethernet
equipment by lowering system cost and reducing power dissipation by
nearly 25%, driving the delivery of Gigabit Ethernet bandwidth to the
desktop.
The BCM5466SR DSP-based architecture and advanced power
management techniques combine to achieve robust and low power
operation over existing Category 5 twisted-pair wiring. The BCM5466SR
architecture not only meets the requirements of IEEE 802.3, IEEE 802.3u,
and IEEE 802.3ab, but maintains the industry’s highest level of margin
over IEEE requirements for echo, near-end crosstalk (NEXT), and far-end
crosstalk (FEXT). Low power is key to implementing high-density Gigabit
switches, and the BCM5466SR has the lowest power in the industry at less
than 750 mW per port. In addition, the BCM5466SR has extremely low
EMI emissions, which reduces the design constraints required to meet EMI
radiation specifications.
The BCM5466SR supports RGMII, SGMII, and SerDes MAC interfaces.
A unique feature of the BCM5466SR is its ability to support both copper
and fiber networks, with an integrated SerDes PHY interface that can
connect directly to a fiber-optic module. Switching between copper and
fiber media can be accomplished either automatically or through software
Broadcom
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
5466SR-PB03-R
®
, the pulse logo, Connecting everything
8/21/06
REGCNTL [2:1]
TRD [3:0{4:1}±
REGSUP [2:1]
REGSEN [2:1]
XTALO
®
XTALI
RDAC
®
, and the Connecting everything logo are among
Correction
Negotiation
Baseline
Generator
Generator
Regulator
Wander
Voltage
PGA
Clock
Auto-
Bias
BCM5466SR Reference Design
TX DAC
ADC
O V E R V I E W
BCM5466SR
Registers
Canceller
Recovery
Timing &
Phase
Echo
FFE
MII
control. The BCM5466SR monitors copper link and fiber signal detect
status, and automatically swaps either copper traffic or fiber traffic to the
MAC/switch based on priorities set at initialization.
This device is another member of Broadcom’s 0.13-µm Gigabit Ethernet
copper PHY family, joining more than a dozen other quad and single
products. The 0.13-µm process is the optimal process that offers the best
performance, lowest cost, and lowest power for Gigabit Ethernet copper
solutions. Devices based on the 0.13-µm process offer an excellent long-
term cost curve, enabling better cost reduction over time (compared to
older technologies) without having to redesign or requalify a new part.
Each port of the BCM5466SR is fully independent and has individual
interface, control, and status registers, and incorporates a number of
advanced features. A link-quality indicator LED gives installers an instant
visual indication if there are any problems with the wiring plant supporting
operation at the preferred speed. This includes physical wiring defects that
the BCM5466SR cannot automatically correct for, and channel conditions
such as excessive cable length and return loss, crosstalk, echo, and noise.
Broadcom’s CableChecker software provides remote management of the
cable and first level diagnostics and fault isolation.
The BCM5466SR also has ESD tolerance well above typical industry
standards. This prevents ESD damage not only during manufacturing, but
also during CESD events in the field. The CESD is an ESD event that
occurs when an electrically charged network cable is plugged into a
network port, which is an issue becoming more prevalent with recent cable
installations. The BCM5466 can tolerate over 3 kV of CESD.
Canceller
Decoder
Control
XTALK
MGMT
Trellis
DFE/
MII
Decoder/
Encoder
Symbol
Symbol
Aligner
Drivers
Serial/
SGMII
LED
GTXCLK {4:1}
TXD [3:0]{4:1}
TX_EN {4:1}
SCLK(1) {4:1}±
SGOUT(1) {4:1}±
SGIN(1) {4:1}±
RXD [3:0]{4:1}
RXC {4:1}
RX_DV {4:1}
LED [4:1]{4:1}
MDC [4:1]
MDIO [4:1]
Modes
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com