AR8031-AL1B-R

AR8031-AL1B-R Datasheet


AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver

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AR8031-AL1B-R AR8031-AL1B-R AR8031-AL1B-R (pdf)
Related Parts Information
AR8031-AL1B AR8031-AL1B AR8031-AL1B
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AR8031-AL1A AR8031-AL1A AR8031-AL1A
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Data Sheet

August 2011 Version

AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver

The AR8031 is part of the Arctic family of devices which includes the AR8031, AR8033, and AR8035. The AR8031 is Atheros’ 4th generation, single port, 10/100/1000 Mbps, Trispeed 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 comprehensive applications including enterprise, carrier and home networks such as CPE, home gateway, enterprise switch, carrier switch/router, mobile base station and base station controller, optical module and media converter, industry automation and measurement.

The AR8031 integrates Atheros Green power saving technologies and significantly saves power not only during the work time, but also overtime. Atheros Green power savings include ultra-low power in cable unplugged mode or port power down mode, and automatic optimized power saving based on cable length. The AR8031 also supports IEEE 802.3az EEE standard Energy Efficient Ethernet and Atheros proprietary SmartEEE. SmartEEE allows legacy MAC/SoC devices without 802.3az support to function as a complete 802.3az system. Further, the AR8031 supports Wake-on-LAN WoL feature to be able to help manage and regulate total system power requirements.

The AR8031 embeds CDT Cable Diagnostics Test technology on-chip which allows customers to measure cable length, detect the cable status, and identify remote and local PHY malfunctions, bad or marginal patch cord segments or connectors. Some of the possible problems that can be detected include opens, shorts, cable impedance mismatch, bad connectors, termination mismatch, and a bad transformer.

The AR8031 requires only a single, 3.3V power supply. On-chip regulators provide all the other required voltages. It integrates the
termination R/C circuitry on both the MAC interfaces RGMII/SGMII and the serial resistors for the line side.

The AR8031 device also incorporates a GHz SerDes. This interface can be connected directly to a fiber-optic transceiver for 1000 BASE-X /100 BASE-FX mode or to MAC device for SGMII interface.

The AR8031 supports both 1588v2 and synchronous Ethernet to offer a complete time synchronization solution to meet the next generation network requirements. The key new features supported by the device are:
n Clock synchronization between slave and grandmaster by the exchange of PTP packets. Supports IEEE 1588v2 by offering a 1588 paket parser, accurate time-stamping and insertion to support both one-step and two-step clock modes
n Supports both IEEE 1588v2 and Synchronous Ethernet by offering recovered clock output from data on the network-line side.

The AR8031 supports IEEE 802.3az Energy Efficient Ethernet EEE standard. The key features supported by the device are:
n 10 BASE-Te PHY uses reduced transmit amplitude.
n 100 BASE-TX and 1000 BASE-T use Low Power Idle LPI mode to turn off unused analog and digital blocks to save power while data traffic is idle.
n 10/100/1000 BASE-T IEEE compliant n Supports 1000 BASE-T PCS and auto-
negotiation with next page support n Supports RGMII and/or SGMII interfaces
to MAC devices n Supports Fiber and Copper combo mode
when MAC interface works in RGMII mode n Supports additional IEEE 1000 BASE-X and
100 BASE-FX with Integrated SerDes n RGMII timing modes support internal delay
and external delay on Rx path
2011 by Atheros Communications, Inc. All rights reserved. Atheros Driving the Wireless No New
, Spread Spectrum Super The Air is Cleaner at Total U-

Wake on Wireless Future. Unleashed and are registered by Atheros Communications, Inc. Atheros SST , Signal-Sustain Technology ,

Ethos , Install N Go , IQUE , ROCm , amp , Simpli-Fi , There is Here , U-Map , U-Tag , and 5-UP are trademarks of Atheros Communications, Inc. The

Atheros logo is a registered trademark of Atheros Communications, Inc. All other trademarks are the property of their respective holders. Subject to change without notice.

COMPANY CONFIDENTIAL
•1
n Supports Atheros Green power saving modes with internal automatic DSP power saving scheme
n Supports IEEE 802.3az Energy Efficient Ethernet
n Supports SmartEEE which allows MAC/ SoC devices withoug 802.3az support to function as the complete 802.3az system
n Supports Wake-on-LAN WoL to detect magic packet and notify the sleeping system to wake up
n Fully integrated digital adaptive equalizers, echo cancellers, and Near End Crosstalk NEXT cancellers
n Supports Synchronous Ethernet with selectable recovered clock output
n Robust Cable Discharge Event CDE protection of ±6 kV
n Error-free operation over up to 140 meters of CAT5 cable
n Automatic channel swap ACS n Automatic MDI/MDIX crossover n Automatic polarity correction n IEEE 802.3u compliant Auto-Negotiation n Jumbo Frame support up to 10KB full
duplex n Multiple loopback modes for diagnostics n Robust Surge Protection with ±750 V/
differential mode and ±4 kV/common mode n Cable Diagnostic Test CDT n Single power supply 3.3V, optional for external regulator for core voltage n 6mm x 6mm, 48-pin QFN package n Industry temperature I-temp option available.

AR8031 Functional Block Diagram
6 Ordering Information
7 Topside Marking

Atheros Communications, Inc. COMPANY CONFIDENTIAL

AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver
• 7 August 2011
• 7
8
• AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver 8
• August 2011

Atheros Communications, Inc. COMPANY CONFIDENTIAL

Pin Descriptions

This section contains a package pinout for the AR8031 QFN 48 pin and a listing of the signal descriptions see Figure

The following nomenclature is used for signal names:

No connection to the internal die
is made from this pin

At the end of the signal name,
indicates active low signals

At the end of the signal name,
indicates the positive side of a dif-
ferential signal

At the end of the signal name
indicates the negative side of a
differential signal

The following nomenclature is used for signal types described in Table 1-1:

Open drain

Analog input signal

Digital input signal

Input signals with weak internal
pull-up, to prevent signals from
floating when left open

Input signals with weak internal
pull-down, to prevent signals
from floating when left open

A digital bidirectional signal

An analog output signal

A digital output signal

A power or ground signal

Internal pull-down for input

Internal pull-up for input

Atheros Communications, Inc. COMPANY CONFIDENTIAL

AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver
• 9 August 2011
• 9

Figure 1-1 shows the pinout diagram for AR8031.

MDIO DVDDL SIP SIN AVDDL SOP SON SD WOL_INT TXD3 TXD2 TXD1

MDC 1 RSTn 2

LX 3 VDD33 4
Ordering Information
Table AR8031 Ordering Information
Ordering Number

AR8031-AL1A AR8031-AL1A-R AR8031-AL1B AR8031-AL1B-R

Version

Commercial

Industrial
Default Ordering Unit

Tray pack Tape and reel

Tray pack Tape and reel

Topside Marking

Table AR8031 Marking
Ordering Number

AR8031-AL1A AR8031-AL1B

Marking

AR8031-AL1A AR8031-AL1B

AR8031-AL1A <Lot number> <Date code> <Country of origin>

Figure Topside Markings

AR8031-AL1B <Lot number> <Date code> <Country of origin>

Atheros Communications, Inc. COMPANY CONFIDENTIAL

AR8031 Integrated 10/100/1000 Mbps Ethernet Transceiver
• 117 August 2011
• 117

Atheros Communications, Incorporated
1700 Technology Drive San Jose, CA 95110 tel fax:

COMPANY CONFIDENTIAL Subject to Change without Notice
More datasheets: KST241J | KST221J | KST241G | KST221G | KST243J | 2519 | 17-300740 | 17-300730 | 17-300750 | AR8031-AL1B


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Datasheet ID: AR8031-AL1B-R 507255