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VSC1237, VSC1237/38S, VSC1237SR

Table of contents:
Info of VSC1237
Info of VSC1237/38S
Info of VSC1237SR

VSC1237, VSC1237/38S, VSC1237SR Selling Leads, Datasheet

MFG:800 Package Cooled:BGA D/C:VITESSE

VSC1237, VSC1237/38S, VSC1237SR Datasheet download

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Part Number: VSC1237

MFG: 800

Package Cooled: BGA

D/C: VITESSE

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VSC1237 General Description

The VSC1237 and VSC1238 is a complete highperformance multiplexer/demultiplexer chip set designed for 9.9-12.5 Gbps applications, including SONET OC-192, SDH STM-64, 10GbE, G.975, G.709 and offering enhanced capabilities specifically designed to address the needs of Ultra Long Haul (ULH) and Long Haul (LH) fiber optic transmission systems.

The VSC1237 is a 16:1 Multiplexer with an integrated Clock Multiplier Unit. This device easily surpasses the jitter requirements for SONET/SDH transmission systems. Integrated phase locked loop circuits, including VCOs, are used for high speed clock generation, jitter filtering and low-speed data transfer. This device offers enhanced features, such as a integrated jitter filter PLL and a selectable full/half-rate clock output, which is specifically designed to be used in long haul and ultra long haul systems that utilize clocked laser drivers or RZ signaling. The clock output features extremely low clock-data skew variation, and can be disabled to save power.

The VSC1238 is a 1:16 Demultiplexer (DMUX) with Clock and Data Recovery (CDR) unit. This device is capable of direct recovery of signals which are subject to various impairments/formats inherent in ULH/LH systems, including poor Optical Signal to Noise Ratio (OSNR) arising from optical amplification, distortion from Chromatic Dispersion, Polarization Mode Dispersion / Differential Group Delay (PMD/DGD), and RZ signaling. The highly sensitive front-end, precise phase detector / decision circuit, and adaptive threshold features eliminate the need for AGC amplifiers, post-amplifiers, filters, etc. which are traditionally needed to recover these signals.

VSC1237 Features

·16:1 Data Multiplexer
·PLL Based Clock Multiplier
·Integrated Jitter Filter PLL
·Full-rate/Half-rate Clock Outputs
·Flexible PLL Based Parallel Data Clocking
·Selectable Bit-order and Phase Reversal
·Selectable Low Phase Noise VCOs
·Surpasses SONET/SDH Jitter Generation/Transfer Requirements

VSC1237 Typical Application

·SONET OC-192, SDH STM-64 Systems
·10GbE, G.975, G.709 and Proprietary FEC Systems
·Long Haul / Ultra Long Haul Transmission Systems
·Line Cards
·Transponders

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