vsc8238 Vitesse Semiconductor Corp, vsc8238 Datasheet - Page 2

• Manufacturer Part Number: vsc8238
• Description: 10.3125 Gbps Advanced Electronic Equalization With Limiting Amplifier, And Clock And Data Recovery Semiconductor Corporation
• Manufacturer: Vitesse Semiconductor Corp

VSC8238
Trademarks
Vitesse, ASIC-Friendly, FibreTimer, TimeStream, Snoop Loop, Super FEC, FOCUSConnect, Meigs-II, Meigs-IIe, Lansing, Campbell-I, Barrington,
PaceMaker, HOVCAT48, HOVCAT48e, HOVCAT192, HOVCAT192e, Micro PHY, FOCUS32, FOCUS16, IQ2200, NexSAS, VersaCAT, GigaStream, HawX,
SparX, StaX, VstaX, SimpliPHY,VeriPHY, ActiPHY, XFP PRO, SFP PRO, Smart-LINK, OctalMAC, EQ Technology are trademarks in the United States and/or
other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective
holders.
Copyright © 2006
Vitesse Semiconductor Corporation (“Vitesse”) retains the right to make changes to its products or specifications to improve performance, reliability or
manufacturability. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is
subject to change without notice at any time. While the information furnished herein is held to be accurate and reliable, no responsibility will be assumed by
Vitesse for its use. Furthermore, the information contained herein does not convey to the purchaser of microelectronic devices any license under the patent
right of any manufacturer.
G E N E R A L D E S C R I P T I O N :
designed to operate at 10.3125 Gbps for use in 10GBASE-LRM Ethernet
applications. The receive chain within the VSC8238 device incorporates a
low-noise automatic gain-controlled amplifier, a high-speed adaptive
S P E C I F I C A T I O N S :
<
<
Exceeds IEEE 802.3aq Draft 4.0 specifications for 10GBASE-LRM performance
Passes the following LRM stressor tests:
- Split-symmetric 4.75 dB PIE-D stressor (300 m)
- Post-cursor 4.56 dB PIE-D stressor (300 m)
- Pre-cursor 4.48 dB PIE-D stressor (300 m)
TM
VSC8238
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The VSC8238 device is a compact, fully integrated
electronic dispersion compensator (EDC) and
provides clock and data recovery (CDR) unit
incorporating
equalization
equalization (DFE) architecture. The device is
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10.3125 Gbps Advanced Electronic Equalization with Limiting Amplifier, and Clock and Data Recovery
V S C 8 2 3 8 S T R E S S O R E L E C T R I C A L P E R F O R M A N C E :
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Split-Symmetric Passing Region
IEEE802.3aq/D3.1 220 m post-cursor, pre-cursor, and split-symmetric
(FFE)
a
stressor performance as a function of log BER versus SNR
Pre-Cursor Passing Region
sophisticated
Post-Cursor Passing Region
and
(nominal conditions, input: ~400 mV differential)
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decision
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feed-forward
SNR (dBe)
feedback
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equalizer with linear and nonlinear compensation, a jitter-tolerant clock
and data recovery, and a precision-limiting amplifier. The 10.3125 Gbps
output signal is XFI-compliant. The equalizer implementation provides a
high level of signal impairment compensation to ensure a robust LRM link.
It also provides the adequate performance margin needed for demanding
multimode fiber applications. The VSC8238 device is the only EDC on the
market meeting the LX-4 compliant performance to enable 10 GbE
transmission up to 300 meters on 99% of the installed FDDI fiber base.
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220 m Post-Cursor
220 m Pre-Cursor
220 m Split-Symmetric
Split-Symmetric SNR
Pre-Cursor SNR
Post-Cursor SNR
BER
741 Calle Plano
Camarillo, CA 93012, USA
Tel: [phone]
Fax: [phone]
www.vitesse.com
[e-mail]