Broadcom
BCM84836
Dual 10GBASE-T
Transceiver
DUAL-PORT 10GBASE-T TRANSCEIVER
Overview Features
The Broadcom BCM84836 is a complete dual Highly integrated two-port 10GBASE-T Ether-
100BASE-TX, 1000BASE-T, and 10GBASE-T solution net transceiver.
operating at 100m over CAT6a UTP cable. It is
Supports multiple speeds: 10GBASE-T,
based on highly advanced digital signal processor-
1000BASE-T, and 100BASE-TX.
based architecture to allow robust operation over
XFI and SGMII MAC interface.
worst case UTP cables. The BCM84836 is a highly
Compliant with IEEE 802.3, IEEE 802.3an,
integrated solution combining enhanced analog
IEEE 802.3ab, IEEE 802.3u, and IEEE 802.3az
Highlights
front ends with digital adaptive equalizers, ADCs,
standards.
phase-locked loops, line drivers, LDPC encoders
The BCM84836 is a new mem-
AutogrEEEn permits legacy MACs to enjoy
ber of the Broadcom 40 nm and decoders, echo cancellers, crosstalk cancellers,
the power savings of Energy Efficient Ether-
10GBASE-T family.
and all required support circuitry.
net (EEE) in periods of reduced link utiliza-
The small 21 mm package size
tion.
reduces the footprint for
Summary of Benefits
10GBASE-T, ideal for servers and Reduced number of supplies, standard volt-
networking uplink modules.
Robust operation over 100m Cat6a cables with
ages: 1.0V and 2.5V.
industry-standard four-pair magnetics
EEE provides significant power
BCM84836S version provides single-port oper-
reduction with AutogrEEEn
Simplifies system and board design:
ation at optimized power.
delivering EEE for legacy MACs.
Reduces PCB space
Synchronous Ethernet support.
IEEE 1588 Precision Time Proto-
Lowers system bill of materials (BOM)
Line-side XFI enables dual-media applications.
col (PTP) provides precise and
IEEE standard device interoperability: 100
accurate synchronization of Cable plant diagnostics.
Mbps, 1000 Mbps, and 10 Gbps.
nodes in the network.
IEEE standard 1588-2008 (version 2) support.
Cuts design constraints to meet EMI standards.
Line-side XFI interface supports
Detection and correction of pair swaps (MDI
dual-media applications, when
Cable diagnostics identifies cable plant condi-
crossover), pair skew, and pair polarity.
both RJ45 and SFP+ require sup-
tion to immediately trace cabling issues.
Support for jumbo packets up to 18 KB.
port from a single XFI MAC inter-
IEEE 1588v2 with one-step timestamp inser-
face.
Super-Isolate mode to completely disable
tion provides high-accuracy timing
selected port.
10m mode offers reduced latency and power.
Extensive selection of both line and network
side loopbacks.
400-pin FBGA 21 mm x 21 mm package.
BCM84836
Service
XFI MDI RJ-45
Transformer
Provider
MAC
OTN/PTN
Controller
or BCM84836
Data Centers
Switch XFI
MDI RJ-45
Transformer
Enterprise
Supported
Best ChoiceBCM84836 [Port 1]
SYNC_IN0
SYNC_IN1_OUT
IEEE 1588/SynchE
INTERR_MLC
FrFrFrFraameameameme LDLDLDLDPPPPCCCC 4D4D4D4D D D D DSQSSSQQQ 4D Pre-H
4D4D4D4D D D D DAAAACCCC
RD_M+ Scramble Encode 128 Map
ScrScrScraaamblmblmbleee EnEnEncccooodddeee Decode
DeDeDecccooodedede
XFI
TD_M+
XFXAXAXAI/UUUSGIII MI I// MSS/GGSAGMMICMI III I
4D Clock
4D4D4D C C Cllloooccckkk
Interface
LDPC TRD[1][0:3]
MACMACMAC
MaMaMatttrrriiixxx
Matrix Recovery
ReReRecovcovcoveeerrryyy
Decode
IntIntInteeerrrfffaaaccceee
XtXtXtXtaaaalklllkkk
RD_L+
CCanCanCananceccclleelelellerlerlerr
DeDeDefrfrframeameame 4D4D4D4D D D D DSQSSSQQQ
TD_L+ Deframe and LDPC and
anananddd
andandand 128 Soft128128128 S S Soooftftft
Decode
Descramble Equalizer 4D4D4D A A ADDDCCC
EEEqualqualqualiiizzzeeerrr
Decisions
DeDeDecicicisisisionsonsons
BCM84836 [Port 2]
MDIMDIMDIMDIOOOO
MDC
LELELEDDD
LED
MII Registers
Management
10 LEDs
Controller
CoCoConnntttrororollllllererer
Interface
MDIO
IntIntInteeerrrfffaaaccceee
SI
Clock + XTALN
SCK
SPSPSPI II
Generator
CSb + XTALP
SO
Shared Functions
BCM84836 Block Diagram for Each Port
Each BCM84836 port contains an XFI The 40 nm process offers the best perfor- AutogrEEEn feature. Support for 1588v2
interface to connect to the MAC side as mance, lowest cost, and lowest power for in the BCM84836 is part of Broadcoms
well as an XFI interface on the line side to 10-Gigabit copper applications and broad offering of PTP devices.
connect to an external SFP+ cage (typi- enables a highly integrated solution.
The BCM84836_EVAL is available, and it
cally through an external XFI to SFI+ con-
The BCM84836 incorporates various provides a reference design platform suit-
verter device such as the BCM8752). This
advanced features. Support for Energy able for evaluation of the device. Other
dual-port PHY enables customers to
Efficient Ethernet is provided both support information includes a design
design dual-port PCIe NICs and full-fea-
through LPI commands over the XFI inter- guide. Contact your Broadcom sales rep-
tured dual-media 10GBASE-T modules in
face as well as via Broadcoms resentative for more information.
switching applications.
Ordering Information Part Number
400-pin FBGA (RoHS-compliant) BCM84836B1KFEBG
400-pin FBGA (RoHS-compliant) single-port BCM84836SB1KFEBG
About Broadcom
Broadcom Corporation is a major technology These solutions support our core mission: A FORTUNE 500 company, Broadcom is
innovator and global leader in Connecting everything. headquartered in Irvine, Calif., and has offices
semiconductors for wired and wireless and research facilities in North America, Asia
Broadcom, one of the world's largest fabless
communications. Broadcom products and Europe. Broadcom may be contacted at
communications semiconductor companies,
enable the delivery of voice, video, data and +1.949.926.5000 or at www.broadcom.com.
with 2010 revenue of $6.82 billion, holds
multimedia to and throughout the home, the
more than 4,800 U.S. and 2,000 foreign
office and the mobile environment. We
patents, and has more than 7,800 additional
provide the industry's broadest portfolio of
pending patent applications, and one of the
state-of-the-art system-on-a-chip and
broadest intellectual property portfolios
software solutions to manufacturers of
addressing both wired and wireless
computing and networking equipment,
transmission of voice, video, data and
digital entertainment and broadband access
multimedia.
products, and mobile devices.
Broadcom, the pulse logo, Connecting everything, the Connecting everything logo, and AutogrEEEn are among 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.
June 14, 2011 84836-PB00-R