Waveshape
Filter
Echo
Canceller
TRD[0:3]
Timing and
Phase
Recovery
Next
Canceller
Feed
Forward
Equalizer
PGA
PMA
ADC Deskewer
Trellis
Decoder
Decision
Feedback
Equalizer
Hybrid
Circuit
DAC
Auto-
Negotiation DLL
MII Management
Registers
AGC
RGMII/
SGMII
RGMII/
SGMII
Symbol
Encoder
Symbol
Decoder
PCS
Solution Highlights
• SGMII and RGMII MAC interface support
• Atheros ETHOS-Designed Green Ethernet (EDGE™) power-saving technology
• Fiber support to 1000Base-X and 100Base-FX with fault detect
• Integrated MDI termination resistors
• Full IEEE 802.3az support
• Atheros proprietary SmartEEE support
• Wake-on-LAN (WOL)
• Jumbo frame support up to 10 kb full duplex
• Synchronous-Ethernet support with recovered clock output
• Complete IEEE 1588 V2 support
• Single 3.3V supply
AR8031 Architecture
Ultra low-power 10/100/1000
RGMII/SGMII Gigabit Ethernet
Transceiver
AR8031
Technology Overview
Atheros ETHOS® technologies provide customers
with industry-leading low-power and solution size
to enable Fast or Gigabit Ethernet connectivity in
networking equipment, consumer electronics and
computing platforms. Our PHY, controller and switch solutions support
the IEEE 802.3az standard for Energy Efficient Ethernet, to extend battery-
charges on computing platforms and deliver power-efficiencies in networking
equipment. Atheros also enables incremental power-saving techniques to
offer our customers the very lowest power Ethernet in the industry today.
The unmatched efficiency and advanced carrier-class features of Atheros
ETHOS solutions give customers a competitive edge when designing
products for energy-conscious consumers and businesses.
AR8031 Product Overview
The AR8031 is part of the Arctic family of PHYs – which includes the
AR8030, AR8033, and AR8035. The AR8031 is Atheros’ 4th generation,
single port, 10/100/1000 Mbps Ethernet PHY. It supports both RGMII
and SGMII interfaces to the MAC.
The AR8031 provides a low-power, low BOM (bill-of-materials) cost solution
for a wide range of applications, including enterprise, carrier and home
networks, including optical modules and media converters.
The AR8031 supports both Sync-E and IEEE1588-V2 timing protcols.
The AR8031 device incorporates a 1.25 GHz SERDES which can be connected
directly to fiber-optic transceivers for 1000 Base-X/100 Base-FX mode.
The AR8031 integrates Atheros ETHOS-Designed Green Ethernet (EDGE) power
saving technologies to automatically save significant power in all operating
and idle modes. The AR8031 also supports IEEE 802.3az EEE standard (Energy
Efficient Ethernet) with proprietary SmartEEE technology to improve energy
efficiency in systems using legacy MAC devices without 802.3az support –
enabling customers to fully realize the energy benefits of the new standard
by just replacing the PHY devices in their designs.
The AR8031 also supports Wake-on-LAN (WoL), embeds CDT (Cable Diagnostics
Test) technology on-chip, and requires only a single, 3.3V power supply.
On-chip regulators provide the other voltages. It integrates the termination
R/C circuitry on both the MAC interfaces (RGMII/SGMII) and the line side.
Atheros Communications is a global leader in innovative technologies
for wireless and wired communications. Atheros combines its wireless
and networking systems expertise with high-performance radio frequency
(RF), mixed signal and digital semiconductor design skills to provide
highly integrated chipsets that are manufactured on low-cost, standard
complementary metal-oxide semiconductor (CMOS) processes. Atheros
technology is used by a broad base of leading customers, including
networking equipment, computing and consumer device manufacturers.
For more information on Atheros and Atheros wireless technology please visit www.atheros.com
Specification subject to change © 2010 Atheros Communications, all rights reserved
Atheros, the Atheros logo, ETHOS and the ETHOS logo are registered trademarks of Atheros
Communications, Inc. There is Here is a trademark of Atheros Communications, Inc.
All other trademarks mentioned in this document are the property of their respective owners.
AR8031-11-29-10
For more information on the AR8031 or other solutions from Atheros
contact your local representative:
Atheros Communications, Inc.
t +1 408.773.5200
f +1 408.773.9940
Atheros Communications KK-Japan
t +81 3.5501.4100
f +81 3.5501.4129
Atheros Communications Intl, LLC-Taiwan
t +886 2.8751.6385
f +886 2.8751.6397
Atheros Hong Kong Limited
t +852 8206.1131
f +852 8206.1301
Atheros (Shanghai) Co., Ltd.
t +86 21.5108.3626
f +86 21.5027.0100
Atheros Korea
t +82 31.786.0428
Ultra low-power 10/100/1000
RGMII/SGMII Gigabit Ethernet
Transceiver
AR8031
AR8031 Specifications
10/100/1000Base-T IEEE 802.3 compliant
Supports 1000Base-T PCS and auto-negotiation with next page support
Supports RGMII and/or SGMII interfaces to MAC devices
Supports Fiber and Copper combo mode when MAC interface works in RGMII mode
Supports additional IEEE 1000 Base-X and 100 Base-FX with Integrated Serdes
RGMII timing modes support internal delay and external delay on both Rx and
Tx paths
Atheros ETHOS-Designed Green Ethernet (EDGE) power saving modes with
internal automatic DSP power saving scheme
Supports 802.3az (Energy Efficient Ethernet)
Supports Wake-on-LAN (WoL) to detect magic packet and notify the sleeping
system to wake up
Fully integrated digital adaptive equalizers, echo cancellers, and near end
crosstalk (NEXT) cancellers
All-digital baseline wander correction
Supports Synchronous Ethernet
Error-free operation up to 140 meters of CAT5 cable
Automatic channel swap (ACS)
Automatic MDI/MDIX crossover
Automatic polarity correction
IEEE 802.3u compliant Auto-Negotiation
Jumbo Frame support up to 10KB (full duplex)
Software programmable LED modes
Multiple loopback modes for diagnostics
Single power supply: 3.3V, optional for external regulator for core voltage
Atheros Cable Diagnostic Test (CDT) Technologies
IEEE 802.3 remote fault indication and fault propagation in fiber mode
Pin to Pin compatible with low cost AR8033
48-pin QFN package
Industrial temperature range option
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