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SY10EL1189_03

更新时间： 2024-01-07 20:33:15
品牌 Logo 应用领域
麦瑞 - MICREL 驱动器光纤
页数 文件大小 规格书
4页 60K
描述
FIBRE CHANNEL COAXIAL CABLE DRIVER AND LOOP RESILIENCY CIRCUIT

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中文翻译

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SY10EL1189_03 数据手册

 浏览型号SY10EL1189_03的Datasheet PDF文件第2页浏览型号SY10EL1189_03的Datasheet PDF文件第3页浏览型号SY10EL1189_03的Datasheet PDF文件第4页 
FIBRE CHANNEL COAXIAL  
CABLE DRIVER AND LOOP  
RESILIENCY CIRCUIT  
SY10EL1189  
FINAL  
FEATURES  
DESCRIPTION  
ꢀ 425ps propagation delay  
The SY10EL1189 is a differential receiver, differential  
transmitter specifically designed to drive coaxial cables.  
It incorporates the output cable driver capability of the  
SY10EL89 Coaxial Cable Driver with additional circuitry  
to multiplex the output cable drive source between the  
cable receiver or the local transmitter inputs. The  
multiplexer control circuitry is TTL compatible for ease of  
operation.  
ꢀ 1.6V output swings  
ꢀ Single +5V operation  
ꢀ Internal 75KΩ input pull-down resistors  
ꢀ Available in 16-pin SOIC package  
The SY10EL1189 is useful as a bypass element for  
Fibre Channel-Arbitrated Loop (FC-AL) or Serial Storage  
Architecture (SSA) applications, to create loop style  
interconnects with fault tolerant, active switches at each  
device node. This device is particularly useful for back  
panel applications where small size is desirable.  
LOGIC DIAGRAM  
From Input Cable  
(ECL Levels)  
The EL89 style drive circuitry produces swings twice  
as large as a standard PECL output. When driving a  
coaxial cable, proper termination is required at both ends  
of the line to minimize reflections. The 1.6V output swings  
allow for proper termination at both ends of the cable.  
Because of the larger output swings, the QT, QT outputs  
are terminated into the thevenin equivalent of 50Ω to  
VCC-3.0V instead of 50Ω to VCC-2.0V.  
Local  
QR  
DR  
Receive Data  
(ECL Levels) QR  
DR  
VBB  
1
0
QT  
QT  
DT  
DT  
Local  
Transmit Data  
(ECL Levels)  
To Output Cable  
(Enhanced Swing)  
SEL (TTL)  
PIN NAMES  
Pin  
DR/DR  
QR/QR  
DT/DT  
QT/QT  
SEL  
Function  
Differential Input from Receive Cable  
Buffered Differential Output from Receive Cable  
Differential Input to Transmit Cable  
Buffered Differential Output to Transmit Cable  
Multiplexer Control Signal (TTL)  
Postive Power Supply  
PIN CONFIGURATION  
16  
15  
14  
1
QR  
VCC  
VCC  
2
QR  
DR  
GND  
Ground  
3
V
CC  
DR  
VBB  
Reference Voltage Output  
4
5
6
13  
12  
11  
NC  
GND  
Top View  
SOIC  
V
CC  
VBB  
QT  
DT  
TRUTH TABLE  
7
8
10  
9
QT  
DT  
SEL  
Function  
V
CC  
SEL  
L
DR ꢀꢀQT  
DT ꢀꢀQT  
H
Rev.: D  
Amendment: 0  
Issue Date: February 2003  
1
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