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參數(shù)資料
| 型號： | VSC7142 |
| 廠商： | Vitesse Semiconductor Corporation. |
| 英文描述： | Dual Repeater/Retimer for Fibre Channel and Gigabit Ethernet |
| 中文描述： | 雙中繼器/光纖通道和千兆以太網(wǎng)重定時器 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 101K |
| 代理商： | VSC7142 |
For more information on Vitesse Products visit the Vitesse web site
at www.vitesse.com or contact Vitesse Sales at (800) VITESSE
or sales@vitesse.com
2003 Vitesse Semiconductor Corporation
741 Calle Plano
Camarillo, CA 93012, USA
Tel: +1 805.388.3700
Fax: +1 805.987.5896
www.vitesse.com
VSC7142 Dual Repeater/Retimer for Fibre Channel and Gigabit Ethernet
VSC7142
The VSC7142 contains two FibreTimer Repeater /Retimer
cells and Signal Detect Units (SDUs) primarily used for
bidirectional signal clean up applications. Each FibreTimer
cell contains an all-digital clock recovery unit which can be
configured as either a Repeater or a Retimer. Repeaters
recover the incoming signal and retransmit the data
synchronously to the recovered clock in order to attenuate jitter so that downstream
devices see high amplitude, low jitter signals. Retimers eliminate jitter transfer by
retiming the recovered data to the local reference clock. An add/ drop FIFO inserts or
deletes 40-bit Fibre Channel Fill Words to match the incoming data rate to the local
reference clock, thereby ensuring Fibre Channel compliance at the output of the
Retimer. The VSC7142 also operates as a Repeater for Gigabit Ethernet applications at
1.25 Gb/s. Retimer mode is not available for Gigabit Ethernet applications.
M U LT I - N O D E S W I T C H A P P L I C AT I O N :
One application for the VSC7142 is in high port-count Fibre Channel and Ethernet
systems, such as switches. The following diagram shows a switch with a CMOS
protocol ASIC with integrated Serializer/Deserializers (SerDes) located on the Switch
Fabric card. Serial data from the protocol ASIC passes through multiple connectors
and long traces on the PCB before reaching the connector. Without the VSC7142, the
signal quality at the connectors would result in poor system performance. However,
by using the VSC7142, signal quality is ensured to meet the specifications of Fibre
Channel standards at the system interface connectors.
G E N E R A L D E S C R I P T I O N :
Fibre Channel Switch
Switch ASIC
Switch Fabric Card
Line Card
Connectors
VSC7142
Backplane
Port 1
FibreTimer0 >
< FibreTimer1
Port N
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| VSC7166 | 740; 38000/740 Series; Microcontroller; Bit Size: 8-bit; ROM: 60K; RAM: 2048; ROM Type: Mask ROM; CPU: 740 core; Minimum Instruction Execution Time (ns): 240 (@16.8MHz); Operating Frequency / Supply Voltage: 1.8 to 5.5V; Operating Ambient Temperature (°C): -20 to 85; Package Code: PLQP0064KB-A (64P6Q-A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VSC7142RC | 功能描述:DUAL REPEATER/RETIMER RoHS:否 類別:集成電路 (IC) >> 接口 - 信號緩沖器，中繼器，分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤 其它名稱:Q5134101 |
| VSC7145 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Dual Speed 10-bit Serializer/Deserializer |
| VSC7145RU-30 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Dual Speed 10-bit Serializer/Deserializer |
| VSC7145RU-31 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Dual Speed 10-bit Serializer/Deserializer |
| VSC7145RU-34 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Dual Speed 10-bit Serializer/Deserializer |
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