MC10SX1189_06 Datasheet, PDF (1/5 Pages) ON Semiconductor – Fibre Channel Coaxial Cable Driver and Loop Resiliency Circuit

MC10SX1189
Fibre Channel Coaxial
Cable Driver and Loop
Resiliency Circuit
Description
The MC10SX1189 is a differential receiver, differential transmitter
specifically designed to drive coaxial cables. It incorporates the output
cable drive capability of the MC10EL89 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.
The MC10SX1189 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.
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 1.6 V output swings allow for proper termination at both ends of
the cable, while maintaining the required swing at the receiving end of
the cable. Because of the larger output swings, the QT, QT outputs are
terminated into the thevenin equivalent of 50 W to V_CC − 3.0 V
instead of 50 W to V_CC − 2.0 V.
Features
• 425 ps Propagation Delay
• 1.6 V Output Swing on the Cable Driving Output
• Operation Range: V_CC = 4.5 V to 5.5 V
• 75 kW Internal Input Pull Down Resistors
• >1000 V ESD Protection
• Transistor Count = 102
• Pb−Free Packages are Available*
V_CC DR
16 15
DR GND V_BB DT
14 13 12 11
DT SEL
10 9
12345678
QR QR V_CC NC V_CC QT QT V_CC
Figure 1. Pinout: 16-Lead SOIC (Top View)
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
FIBRE CHANNEL COAXIAL
CABLE DRIVER AND LOOP RE-
SILIENCY CIRCUIT
16
1
10SX1189G
AWLYWW
SOIC
CASE 751B
10SX1189 = Specific Device Code
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
G
= Pb−Free Package
TRUTH TABLE
SEL
Function
L
DR → QT
H
DT → QT
Pins
DR/DR
QR/QR
DT/DT
QT/QT
SEL
V_CC
GND
V_BB
PIN NAMES
Function
Differential Input from Receive Cable
Buffered Differential Output from Re-
ceive Cable
Differential Input to Transmit Cable
Buffered Differential Output to
Transmit Cable
Multiplexer Control Signal (TTL)
Positive Power Supply
Ground
Reference Voltage Output
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
1
January, 2006 − Rev. 4
Publication Order Number:
MC10SX1189/D