88e1112 Marvell Semiconductor, Inc., 88e1112 Datasheet
88e1112
Manufacturer Part Number
88e1112
Description
10/100/1000 Gigabit Ethernet Transceiver With Auto-media Detect
Manufacturer
Marvell Semiconductor, Inc.
Datasheet
1.88E1112.pdf
(2 pages)
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Marvell Alaska 88E1112
10/100/1000 Gigabit Ethernet Transceiver with Auto-Media Detect
PRODUCT OVERVIEW
The Marvell
Ethernet 1000BASE-T, 100BASE-TX, and 10BASE-T applications, with additional functionality of 1000BASE-X and 100BASE-FX
in SFP applications. The 88E1112 supports the SGMII (Serial Gigabit Media Independent Interface) to connect to the MAC
or switch.
The 88E1112 offers the unique capability of auto-media detect. On the line side, in addition to supporting standard copper
applications on Cat 5 twisted pair cable, the 88E1112 incorporates an additional SERDES (serializer/deserializer) that can
operate at 1.25 GHz for connection to a fi ber-optic transceiver for 1000BASE-X applications, or 125 MHz operation for
100BASE-FX applications. The 88E1112 is also an ideal device for media-conversion applications that require SERDES/fi ber-to-
SGMII conversion.
The full fl exibility of the 88E1112 enables multiple applications:
•
•
•
•
The 88E1112 also incorporates Marvell’s Virtual Cable Tester (VCT
opens, shorts, and impedance mismatches.
Housed in a small, 64-pin QFN package, the 88E1112 requires only two power supplies and is offered in both commercial
and industrial grade temperatures.
APPLICATIONS
The Alaska 88E1112 10/100/1000 Mbps Ethernet PHY offers an integrated, fl exible solution for system level or SFP module
applications. Supporting both copper and fi ber media applications, with additional SFP module support, the 88E1112 is a
key ingredient for any type of SGMII/SERDES/copper combination application. The small footprint facilitates SFP module
applications, while the auto-media detect capability offers fl exible media support.
Simple copper connections for line-side 1000BASE-T, 100BASE-TX, and 10BASE-T applications.
Auto-media detect for direct multimedia support in uplink applications. The end consumer may opt to plug in a RJ45
copper connection or an SFP module for copper or fi ber 1000BASE-X/100BASE-X connection to the same PHY port.
Multiple SFP module implementations with a single 88E1112 device to target Copper SFP (10/100/1000BASE-T) and
Fiber SFP (1000BASE-X/100BASE-FX) applications.
Media converter applications from fi ber transceivers to copper and fi ber to SGMII.
®
Alaska
SFP modules: copper and fi ber
®
88E1112 Gigabit Ethernet (GbE) transceiver is a fully compliant IEEE 802.3 physical layer device for
™
) technology for diagnosing cable faults that include
Auto-Media detect UpLink for copper or fi ber
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88e1112 Summary of contents
Page 1
... Media converter applications from fi ber transceivers to copper and fi ber to SGMII. The 88E1112 also incorporates Marvell’s Virtual Cable Tester (VCT opens, shorts, and impedance mismatches. Housed in a small, 64-pin QFN package, the 88E1112 requires only two power supplies and is offered in both commercial and industrial grade temperatures. APPLICATIONS The Alaska 88E1112 10/100/1000 Mbps Ethernet PHY offers an integrated, fl ...
Page 2
... Marvell Alaska 88E1112 FEATURES • SGMII/SERDES MAC side support • Auto-media support to fi ber applications with same PHY • SFP Module Support – Copper and fi ber SFP modules – Support for embedding into copper SFP modules • Additional integrated SERDES switchable to 1.25 GHz or 125 MHz • ...