VSC7129TQM

更新时间： 2024-01-24 00:51:11

品牌	Logo	应用领域
VITESSE		光纤中继器
页数	文件大小	规格书
12页	177K
描述
Telecom Circuit, 1-Func, GAAS, PQFP44, 10 X 10 MM, PLASTIC, QFP-44

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VSC7129TQM 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	QFP, QFP44,.5SQ,32	针数：	44
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.82	Is Samacsys：	N
JESD-30 代码：	S-PQFP-G44	长度：	10 mm
功能数量：	1	端子数量：	44
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP	封装等效代码：	QFP44,.5SQ,32
封装形状：	SQUARE	封装形式：	FLATPACK
电源：	3.3 V	认证状态：	Not Qualified
座面最大高度：	2.45 mm	子类别：	Other Telecom ICs
最大压摆率：	0.26 mA	标称供电电压：	3.3 V
表面贴装：	YES	技术：	GAAS
电信集成电路类型：	TELECOM CIRCUIT	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
宽度：	10 mm	Base Number Matches：	1

VSC7129TQM 数据手册

VITESSE

SEMICONDUCTOR CORPORATION

Data Sheet

Family of Repeater/Retimer and Port

Bypass Circuits for Fibre Channel

VSC7127/VSC7129

Features

• ANSI X3T11 Fibre Channel Compliant

•

Analog/Digital Signal Detect (SDU)

• On-Chip Transmit Termination

• 3.3V, 700mW Power Dissipation

• 1.0625Gb/s Operation

™

• Features the FibreTimer Configurable Clock

Recovery Unit (CRU): Repeater, Retimer or

Bypassed

• Compatible with HDMP-0451 (VSC7127) or

HDMP-0452 (VSC7129)

• Six Port Bypass Circuits (PBC)

• 44-Pin, 10mm PQFP Package

General Description

™

The VSC7127 and VSC7129 contain six cascaded Port Bypass Circuits (PBCs), the FibreTimer config-

urable Repeater/Retimer (CRU) and a Signal Detect Unit (SDU). These parts are typically used in distributing

Fibre Channel signals to an array of disk drives in an FC-AL loop as illustrated in Figure 1. The first

VSC7127’s CRU is configured as a Repeater to attenuate jitter, the second VSC7127’s CRU is bypassed to

reduce power and the third VSC7127’s CRU is configured as a retimer so that the output of the device is a jitter-

compliance point.

Each PBC is a multiplexer that is controlled by the corresponding SELx line which, if HIGH, selects the

external input or, if LOW, selects the output of the previous PBC. For the VSC712xR, when MODE is LOW

and SEL5 is HIGH, the CRU is a sophisticated repeater which has low latency, no peaking and attenuates jitter

even at low frequencies. When MODE is HIGH and SEL5 is HIGH, the CRU is a retimer which eliminates jit-

ter transfer but has increased latency due to an elasticity buffer which adds/drops Fibre Channel fill words in

order to accomodate the difference between the baud rate of the incoming data and the local REFCLK. When

SEL5 is LOW, the CRU is bypassed and powered down. The SDU monitors the analog levels of the IO+/- input

and monitors the output of the CRU digitally to indicate whether valid data is present.

™

The VSC7127/VSC7129 are similar to the VSC7124 which does not contain the FibreTimer cell or CMU.

VSC7127/VSC7129 Block Diagram

REFCLK

CMU

106.25MHz

0.1uF

PBC0

PBC1

PBC2

PBC3

PBC4

SEL5

PBC5

CRU

SDU

MODE

SIGDET

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

G52298-0, Rev 4.3

05/01/01

Page 1

12 3 4 5 6 7...12

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与VSC7129TQM相关器件

型号	品牌	描述	获取价格	数据表
VSC7130RC	ETC	Telecomm/Datacomm	获取价格
VSC7132	VITESSE	Link Replicator for Fibre Channel, Gigabit Ethernet and HDTV	获取价格
VSC7132-01	VITESSE	Link Replicator for Fibre Channel, Gigabit Ethernet and HDTV	获取价格
VSC7132YB	VITESSE	Link Replicator for Fibre Channel, Gigabit Ethernet and HDTV	获取价格
VSC7133	VITESSE	10-bit Transceiver for Fibre Channel and Gigabit Ethernet	获取价格
VSC7133QU	VITESSE	10-bit Transceiver for Fibre Channel and Gigabit Ethernet	获取价格

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