BCM8011
®
FOUR-CHANNEL 3.125 GIGABIT ETHERNET CMOS TRANSCEIVER
FEATURES
•
Support for four channels of 3.125 GigaBaud per second (GBd)
•
•
•
•
•
•
•
•
•
•
•
•
resulting in an effective aggregate data rate of 10 Gigabits per
second (Gbps)
Support for the 10 Gigabit attachment unit (XAUI) and 10
Gigabit media independent interface (XGMII) proposed by the
IEEE 802.3ae standards
Less than 3 ps Root Mean Square (RMS) transmit jitter using
Broadcom’s LC-VCO technology
32 bytes of de-skewing capability for the channels
32-bit parallel interface compatible to SSTL_2/HSTL (1.5)
Class I EIA/JEDEC specifications
On-chip phase-locked loop (PLL), providing clock synthesis
from 156.25 MHz clock references
Optional 8B/10B encoder and 10B/8B decoder in each channel
Parallel or serial loopback modes
Built-In Self-Test (BIST) capability
Termination resistors on-chip
Implemented in a 0.18µ standard CMOS process technology
(1.8V and 2.5V supplies)
2.5W nominal power
324-pin FBGA package (19 mm x 19 mm)
SUMMARY OF BENEFITS
•
Enables data transfer rate of 10 Gbps over metropolitan
•
•
•
•
network when used with wavelength division multiplexing
(WDM) or XAUI interface to a serial 10-Gbps laser module.
Ultra-low transmitter jitter on each channel results in a longer
cable reach (in excess of 40 km).
EyeOpener
TM
adaptive equalizer extends the speed and reach
of copper traces over FR4 backplane.
Adaptive equalization and ultra-low receiver jitter enhance
the receive eye pattern, which results in a superb bit-error rate
(BER).
Easy-to-use programming of the global configuration registers
facilitates the design of the system. It provides enable/disable
functions such as PLL lock, channel synchronization, VCO
bypass, serial and loopback modes for self-diagnosis, and
selecting source-centered and source-synchronous clocking.
In-system at-speed link and on-board Built-In-Self-Test
(BIST) is available using programmable pseudo-random bit
sequence (PRBS) and programmable pattern comparators.
•
BCM8002
BCM8002
1G Modules
BCM8002
BCM8002
BCM5632
Switch
Processor
TBI
XGMII
BCM8011
XAUI-XGMII
Transceiver
XAUI
10 GbE
Backplane
BCM8002
BCM8002
µP
Memory
Application Diagram
OVERVIEW
TMS
TCK
TDI
TDO
TRSTb
MDIO
MDC
IEEE 1149.1
JTAG
Configuration
Control
Clock Multiplier Unit
PLL
TX[31:0]
TX[7:0]
TX_CLK
REFCLK
Input FIFO
8B/10B Encoder
Serializer
TD(3:0)+
TD(3:0)Ð
Rloop
RX[31:0]
RXC[7:0]
RX_CLK
RX_CLKC
RST
Synchronize
De-Skew
10B/8B Decoder
Optional
Adaptive
Equalization
Clock Recovery
De-Serializer
RD(3:0)+
RD(3:0)Ð
The BCM8011 chip provides an aggregate bandwidth of 10-Gbps full-
duplex, extending Ethernet capabilities into the Wide Area Network
(WAN). The BCM8011 integrates four channels of the Broadcom
FusionCore
TM
- a high-performance mixed-signal transceiver core,
capable of transmitting and receiving data at 3.125 Gigabits per second
(Gbps).
The chip also supports Broadcom’s EyeOpener
TM
adaptive equalizer,
which improves overall cable reach and compensates for the electrical
imperfections associated with the copper traces and connectors.
Fully integrated PLL and Clock and Data Recovery enable individual
channels to lock to the incoming data. The unique design of the LC-VCO
and CDR blocks have resulted in a less than 3 ps Root Mean Square
(RMS) transmit jitter implemented in CMOS.
The transmitter section accepts 32-bit-wide (XGMII) parallel SSTL_2/
HSTL-compatible data, clock and control signals and serializes the 32-
bit data into a 4-differential pair of CML high-speed data (XAUI).
The receiver section enables individual channels to lock to the incoming
data. The recovered data is presented at the SSTL_2/HSTL-compatible
parallel outputs.
The optional 8B/10B encoding and 10B/8B decoding of the PCS layer
are integrated in the transceiver. Channel alignment and synchronization
capabilities are addressed through configuration registers.
Broadcom also offers a complete evaluation kit, including board and
related software running on the Microsoft
®
Windows
®
98 or Windows
®
NT 4.0.
Applications:
• 10 Gigabit Ethernet LAN, MAN, WAN switches and routers
• Next-generation network interface cards
• Fiber headends
• Advanced Test Equipment (ATE)
• High-speed serial copper connections
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 mentioned are the
property of their respective owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2004 by BROADCOM CORPORATION. All rights reserved.
8011-PB06-R
04/13/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
