Ethernet Transceiver. 88E1240 Datasheet

88E1240 Transceiver. Datasheet pdf. Equivalent

88E1240 Datasheet
Recommendation 88E1240 Datasheet
Part 88E1240
Description 10/100/1000 Gigabit Ethernet Transceiver
Feature 88E1240; Marvell® Alaska® 88E1240 Integrated 10/100/1000 Gigabit Ethernet Transceiver Technical Product Brief.
Manufacture Marvell
Datasheet
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Marvell 88E1240
Marvell® Alaska® 88E1240
Integrated 10/100/1000 Gigabit Ethernet Transceiver
Technical Product Brief - Public
Doc. No. MV-S103821-00, Rev. A
December 1, 2020
Document Classification: Proprietary Information



Marvell 88E1240
Alaska® 88E1240 Product Brief
Functional Specifications - Public
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Copyright © 2020. Marvell and/or its affiliates. All rights reserved.
Doc. No. MV-S103821-00 Rev. A
Page 2
Document Classification: Proprietary Information
Copyright © 2020 Marvell
December 1, 2020, Advance



Marvell 88E1240
Alaska® 88E1240 Product Brief
Integrated 10/100/1000 Gigabit Ethernet Transceiver
OVERVIEW
FEATURES
The Alaska® Quad family of single-chip devices
contains four independent Gigabit Ethernet trans-
ceivers on a single monolithic IC. Each transceiver
performs all the physical layer functions for
100BASE-TX and 1000BASE-T full or half-duplex
Ethernet on CAT 5 twisted pair cable, and 10BASE-
T full or half-duplex Ethernet on CAT 3, 4, and 5
cable.
The Alaska 88E1240 device supports the Serial
Gigabit Media Independent Interface (SGMII) for
direct connection to a MAC/Switch port.
The 88E1240 device is fully compliant with the
IEEE 802.3 standard. The 88E1240 device includes
the PMD, PMA, and PCS sublayers. The 88E1240
device performs PAM5, 8B/10B, 4B/5B, MLT-3,
NRZI, and Manchester encoding/decoding; digital
clock/data recovery; stream cipher scram-
bling/descrambling; digital adaptive equalization for
the receiver data path as well as digital filtering for
pulse-shaping for the line transmitter; and Auto-
Negotiation and management functions.
The 88E1240 device support Auto-MDI/MDIX at all
three speeds to enable easier installation and
reduced installation costs.
The 88E1240 device integrates MDI interface termi-
nation resistors into the PHY. This resistor integra-
tion facilitates 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.
10/100/1000BASE-T IEEE 802.3 compliant
Highly integrated 4-port physical interface
Supports Serial Gigabit Media Independent Interface
(SGMII)
Integrated MDI interface termination resistors
Integrated Advanced Virtual Cable Tester® (VCT™)
cable diagnostic feature
Programmable current source LED drivers
"Downshift" mode for two-pair cable installations
User programmable individual/group MDC/MDIO sup-
port
Innovative power management design to reduce on-
chip power by as much as 50%
Fully integrated digital adaptive equalizers, echo can-
cellers, and crosstalk cancellers
Automatic MDI/MDIX crossover for all 3 speeds of oper-
ation including 100BASE-TX and 10BASE-T
Automatic polarity correction
IEEE 802.3u compliant Auto-Negotiation
Direct drive LED support
Loopback mode for diagnostics
Supports IEEE 1149.1 JTAG and 1149.6 AC JTAG
Available in RoHS 6/6 compliant package
Manufactured in a 15 x 15 mm 196-Pin TFBGA pack-
age
The 88E1240 device uses advanced mixed-signal
processing to perform equalization, echo and
crosstalk cancellation, data recovery, and error cor-
rection at a gigabit per second data rate. The
device achieves robust performance in noisy envi-
ronments with very low power dissipation.
The 88E1240 device is supported with an inte-
grated Advanced Virtual Cable Tester® (VCT™)
enabling fault detection and advanced cable perfor-
mance monitoring.
Copyright © 2020 Marvell
December 1, 2020, Advanced
Document Classification: Proprietary Information
Doc. No. MV-S103821-00, Rev. A
Page 3





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