88E1545 Datasheet, PDF (1/2 Pages) –

Marvell Alaska 88E1545
Quad Port 10/100/1000 Mbps Energy Efficient Ethernet Transceivers
PRODUCT OVERVIEW
Marvell^® Alaska^® 88E1545 Gigabit Ethernet Transceiver is a physical layer device containing four independent Gigabit
Ethernet transceivers. Each transceiver performs all the physical layer functions for 1000BASE-T, 100BASE-TX and
10BASE-T standards. The device supports Quad-Serial Gigabit Media Interface (QSGMII) to Copper.
In addition to supporting Energy Efficient Ethernet (EEE) on the new generation of enabled MACs, these products are
also capable of implementing EEE with legacy or non-EEE devices by incorporating EEE buffering. The device also
integrates MDI interface termination resistors into the PHY. This resistor integration simplifies board layout and reduces
board cost by reducing the number of external components. The new Marvell calibrated resistor scheme will achieve and
exceed the accuracy requirements of the IEEE 802.3 return loss specifications.
The Alaska 88E1545 device has an integrated switching voltage regulator to generate all required voltages and can
run off a single 3.3V supply. This device uses advanced mixed-signal processing to perform equalization, echo and
crosstalk cancellation, data recovery and error correction at a gigabit-per-second data rate. The device achieves robust
performance in noisy environments with very low power dissipation.
The Marvell Alaska family of transceiver products provides the ideal solution for rapid development and deployment of
gigabit standalone and switching systems for the Enterprise, embedded, consumer and Metro/service provider market
segments.
APPLICATION BLOCK DIAGRAM
M
a
g
n
Quad 10/100/1000 Mbps
e
Ethernet MAC with
QSGMII Interface
88E1545
Devices
t
i
c
s
System Interface
- QSGMII
Fig 1. QSGMII to Copper Application
RJ-45
RJ-45
RJ-45
RJ-45
Media Interface:
-10BASE-T
-100BASE-TX
-1000BASE-T
KEY FEATURES AND BENEFITS
FEATURES
• Support EEE (IEEE 802.3az)
– Implements EEE with legacy or non-EEE MAC
• Supports QSGMII MAC Interface
• Wake on LAN (WoL)
• Integrated Switching Voltage Regulator
• Advanced Virtual Cable Tester^® (VCT™)
• 14mm x 20mm 128-pin LQFP with EPAD
BENEFITS
• Extended energy savings through incorporation of the IEEE 802.3az
standard
– Additional support added to allow EEE enablement on non-EEE MACs
• Lower pin count
- Simplifies board layout
• Provides programmable lower power (S5) event/pattern and link change
detection
• Allows devices to run off single 3.3V supply
• Detects and reports potential cabling issues to within one meter of the
distance to the fault
• Green, environmentally friendly, small form factor for minimal real
estate requirements with efficient heat dissipation