Transceiver
Solutions
Alaska
®
Quad
Gigabit Ethernet Transceiver
88E1141/88E1145
PRODUCT OVERVIEW
The Marvell
¨
Alaska
¨
family of Gigabit Ethernet (GbE) over copper transceivers are the industryÕs lowest power,
smallest form factor, highest performance, and highest port density solutions in volume production. The Alaska
Quad 88E1141 and 88E1145 transceivers lead the industry with the lowest power consumption (under 3W for the
entire device), enabling network systems manufacturers to decrease system cost by reducing both power supply
and fan requirements. Additionally, the 88E1145 device offers the smallest package footprint (21 mm x 21 mm)
and requires 40% less board space than competing Gigabit solutions. The Alaska Quad products offer additional
support of 1000BASE-X through an integrated 1.25 GHz Serializer/Deserializer (SERDES).
D/A
Waveshape
Filter
Echo
Canceller
Near End
Crosstalk
Canceller
Feed
Forward
Equalizer
Trellis
Decoder
Decision
Feedback
Equalizer
10/100/1000
Transmit PCS
P0_TX_CTL
P0_TXD[3:0]
P0_GTX_CLK
Timing
Control
Active Hybrid
Gain Control
Baseline
10BASE-T
Receiver
P0_MDC
P0_MDIO
P0_INTn
P0_RSET
P0_HSDACP/N
P0_TSTPT
Fiber/SERDES
Transmit
P0_S_IN+/-
P0_S_CLK+/-
P0_S_OUT+/-
A/D
DPLL
Skew
Control
10/100/1000
Receive PCS
P0_RX_CTL
P0_RXD[3:0]
P0_RX_CLK
Management
Interface
Bias/Test
Registers
LED/
ConÞguration
Auto-Negotiation
P0_LED_LINK10
P0_LED_LINK100
P0_LED_LINK1000
P0_LED_DUPLEX
P0_LED_RX
P0_LED_TX
GCONFIG[1:0]
JTAG
TRST#
TCK
TDI
TMS
TDO
Clock/Reset
XTAL1
XTAL2
RESETn
125CLK
Fig 1. Alaska Quad GbE Transceiver (88E1141/88E1145) Block Diagram
FEATURES
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Highly integrated 4-port device
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Ultra low power, only 0.75W/port
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10/100/1000BASE-T IEEE 802.3 compliant
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Supports GMII/RGMII/SGMII/TBI/RTBI interfaces
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Virtual Cable Testerª (VCT) feature
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Integrated 1.25 GHz SERDES
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Media Detect feature automatically detects and conÞgures to
either copper or Þber media
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Automatic support for 2-pair CAT 5 cable (100 Mbps)
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Power management modes
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Four RGMII timing modes
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Operation up to 180 meters CAT 5 cable
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Auto-MDI/MDIX crossover for all modes of operation
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Support IEEE 1149.1 (JTAG) and NAND-tree ICT
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Advanced mixed-signal and DSP techniques
BENEFITS
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Enables highly integrated Gigabit switches
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Enables higher integration and reduced system cost
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Compatibility with existing installed base of compliant devices
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Reduces cost and simpliÞes PCB layout
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IdentiÞcation and isolation of cable faults
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Supports 1000BASE-X Þber applications
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Complete media ßexibility
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Operates over installed 2-pair cable
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Reduced system power
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Eliminate the need for on-board delay lines
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Functions over a wider base of cabling infrastructures
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Eases installation and reduces cost
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SimpliÞes board level testing/debugging
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Advanced DSP design
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
