VSC8486YSN-04

Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability

whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction

with mission-critical equipment or applications. Any performance specifi cations are believed to be reliable but are not verifi ed, and Buyer must conduct and complete all performance and other testing of the products, alone

and together with, or installed in, any end-products. Buyer shall not rely on any data and performance specifi cations or parameters provided by Microsemi. It is the Buyer’s responsibility to independently determine suitability

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Traffic-shaping/Security Appliance

LAN

VSC7978

TIA

EML Driver

XFP

10 Gigabit Ethernet Over SONET Linecard

LAN

VSC7978

TIA

VSC7980

VCSEL Driver

VSC8239

Dual CDR

XFP

VSC8486

LCAS

XAUI

SPI-4

TFI-5

Switch

Card

Applications

• 10 Gbps Ethernet LAN/WAN switches,

routers, and router to WAN interconnects

The VSC8486 is a LAN/WAN XAUI or XGMII transceiver that converts

3 Gbps XAUI data to a 10 Gbps serial stream. At just 750 mW, the

VSC8486 is ideal for applications requiring low power. The device

is also equipped with an additional full-rate data port that can be

utilized for bypass monitoring or channel monitoring applications.

The device meets all specifi cations for 10 gigabit Ethernet (GbE)

Layer 1 processing, as defi ned in IEEE 802.3ae. The VSC8486 offers

exceptional 10 Gbps mixed-signal performance with a data output that

features programmable pre-emphasis to enable longer traces of copper.

The VSC8486 high-speed serial I/O supports 9.9 Gbps, 10.3 Gbps,

physical coding sublayer (PCS). The XGXS is capable of deskewing

more than 60 bit times between lanes. The PCS receives data from

the XGXS at 10 Gbps and encodes data according to the 64b/66b

algorithm described in IEEE 802.3ae clause 49.

The PCS features an optional extended mode (E-PCS) that also runs

at the 64b/66b rate. This extended mode uses an alternative framing

algorithm that adds forward error correction (FEC) to provide ~2.5 dB of

net electrical coding gain. The E-PCS is available for LAN mode but not

WAN mode.

The PCS outputs data to the WAN interface sublayer (WIS). (This mode

The PMA multiplexes the internal parallel data bus into a 10 Gbps data

stream. The 10 Gbps to XAUI data channel performs the operations

described above in reverse. Notable features in this path are a SONET-

compliant LOS detector and a 10 Gbps receiver that is fully compliant

with XFI specifi cations, including stressed eye criteria.

The device operates using a 1.2 V supply dissipating only 700 mW in

LAN mode and 750 mW in WAN mode. The VSC8486 is available in

standard and lead(Pb)-free (second-level interconnect only) packages,

measuring 17 mm × 17 mm with 256 pins and 1.0 mm pin pitch.

VSC8486