BCM5466RA0KFBG Datasheet, PDF (2/2 Pages) Broadcom Corporation. – QUAD-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER

OVERVIEW
TRD [3:0{4:1}±
XTALI
XTALO
RDAC
REGSUP [2:1]
REGCNTL [2:1]
REGSEN [2:1]
TX DAC
Baseline
Wander
Correction
PGA
ADC
Auto-
Negotiation
Clock
Generator
Bias
Generator
Voltage
Regulator
BCM5466R
XTALK
Canceller
Echo
Canceller
FFE
Timing &
Phase
Recovery
DFE/
Trellis
Decoder
MII
Registers
MII
MGMT
Control
Symbol
Encoder
Serial/
SGMII
Symbol
Decoder/
Aligner
LED
Drivers
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
BCM5466R Reference Design
The BCM5466R is a member of Broadcom’s QuadSquad™ family of quad
fewer pins at the MAC/switch, which reduces MAC/switch cost by
Gigabit Ethernet PHYs. It consists of four complete 10/100/1000BASE-T
enabling smaller die sizes than would be possible with full GMII
Gigabit Ethernet transceivers integrated on a single monolithic CMOS
implementation.
chip. The BCM5466R is optimized for low power and small footprint size
to enable high-port-density applications. The BCM5466R enables a new
class of cost-effective Gigabit Ethernet equipment by lowering system cost
and reducing power dissipation by nearly 25 percent, driving the delivery
of Gigabit Ethernet bandwidth to the desktop.
The BCM5466R 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
The BCM5466R DSP-based architecture and advanced power
long-term cost curve, enabling better cost reduction over time (compared
management techniques combine to achieve robust and low-power
to older technologies) without having to redesign or requalify a new part.
operation over existing Category 5 twisted-pair wiring. The BCM5466R
architecture not only meets the requirements of the IEEE 802.3, IEEE
802.3u, and IEEE 802.3ab specifications, but also 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 Ethernet switches, and the BCM5466R
has the lowest power in the industry at 750 mW per port. In addition, the
BCM5466R has extremely low EMI emissions, which reduces the design
constraints required to meet EMI radiation specifications.
Each BCM5466R port 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 wiring plant problems at the preferred speed.
This includes physical wiring defects that the BCM5466R 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 BCM5466R supports the RGMII, SGMII, and SerDes MAC
interfaces. The RGMII, SGMII, and serial SerDes interfaces are reduced-
pin-count (12, 6, and 4, respectively, versus 25) versions of the GMII. The
RGMII clock timing can be adjusted to eliminate the board trace delays
required by the RGMII specification. These reduced-pin-count interfaces
simplify design and lower system cost by reducing the number of layers
required to route high-density solutions. In addition, these interfaces allow
The BCM5466R 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 when an electrically charged network
cable is plugged into a network port. This is an issue becoming more
prevalent with contemporary cable installations. The BCM5466R can
tolerate over 3 kV of CESD.
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owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
5466R-PB02-R 04/17/06
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com