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VSC8162 fiches techniques PDF

Vitesse Semiconductor - 2.488 Gbit/sec SONET/SDH 1:16 Demux

Numéro de référence VSC8162
Description 2.488 Gbit/sec SONET/SDH 1:16 Demux
Fabricant Vitesse Semiconductor 
Logo Vitesse Semiconductor 





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VSC8162 fiche technique
VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC8162
2.488 Gbit/sec SONET/SDH
1:16 Demux with Clock Recovery
Features
• 2.488Gb/s 1:16 Demux with Integrated Clock and
Data Recovery
• Recovered Clock and Data Available
• Monolithic Phase Locked Loop
• Digitally Adjustable Serial Data Sampling Point
• Differential Low Speed Outputs
• Differential/Single-ended Reference Clock
• Loss of Lock Detection
• Meets SONET OC-48 and SDH STM-16 Jitter
Tolerance Requirements
General Description
The VSC8162 combines a clock recovery unit (CRU) with a 1:16 demultiplexer on a single chip to directly
generate 16-bit wide data from an incoming 2.488Gb/s NRZ data stream. An on-chip Phase Locked Loop (PLL)
generates a 2.488GHz clock which remains phase locked to the incoming data. The incoming data is retimed
and demultiplexed to a 16-bit word. A Loss of Lock (LOL) signal indicates gross conditions where incoming
data no longer has sufficient transitions to keep the CRU in lock.
VSC8162 Functional Block DIagram
DINVERT
DI+
DI–
REFCK+
REFCK–
PADJ[4:0]
5
Data
Retime
Clock
Recovery
Divide
by 16
RTDO+
RTDO–
D0+
D0–
D15+
D15–
PARITY+
PARITY–
CLK16+
CLK16–
CLKO+
CLKO–
LOL
NOREF
G52209-0, Rev. 2.0
9/14/98
© VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
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