MC10SX1190 Datasheet, PDF (1/8 Pages) ON Semiconductor – Fibre Channel Coaxial Cable Driver and Loop Resiliency Circuit

MC10SX1190
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Fibre Channel Coaxial
Cable Driver and Loop
Resiliency Circuit
The MC10SX1190 is a differential receiver, differential transmitter
specifically designed to drive coaxial cables. It incorporates the output
cable drive capability of the MC10EP89 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 MC10SX1190 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 EP89 style drive circuitry produces swings approximately 70%
larger than a standard PECL output. When driving a coaxial cable,
proper termination is required at both ends of the line to minimize
reflections. The 1.4V 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 50Ω to
VCC – 3.0V instead of 50Ω to VCC – 2.0V.
• 2.5 Gbps Operation
• 425ps Propagation Delay
• 1.4V Output Swing on the Cable Driving Output
• PECL Mode: 3.0V to 5.5V VCC, with VEE = 0V
• ECL Mode: 0V VCC, with VEE = –3.0V to –5.5V
• 75kΩ Internal Input Pull Down Resistors
• >1000 Volt ESD Protection
VCC VCC QR QR VEE DT DT VCC VBB VEE
20 19 18 17 16 15 14 13 12 11
http://onsemi.com
20
1
TSSOP–20
DT SUFFIX
CASE 948E
MARKING DIAGRAM
10SX
1190
ALYW
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
*For additional information, see Application Note
AND8002/D
PIN DESCRIPTION
PIN
FUNCTION
DR/DR ECL Diff. Inputs from Receive Cable
QR/QR ECL Buffered Differential Outputs from
Receive Cable
DT/DT ECL Differential Input to Transmit Cable
QT/QT ECL Buffered Differential Output to
Transmit Cable
SEL TTL Multiplexer Control Signal
VBB
VCC
VEE
Reference Voltage Output
ECL Positive Supply
ECL Negative, 0 Supply
1 2 3 4 5 6 7 8 9 10
VEE DR DR VCC VCC QT QT VEE SEL VCC
Figure 1. 20-Lead TSSOP Pinout: (Top View)
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 1999
1
December, 1999 – Rev. 1
TRUTH TABLE
SEL
Function
L
DR QT
H
DT QT
ORDERING INFORMATION
Device
Package
MC10SX1190DT TSSOP–20
Shipping
75 Units/Rail
Publication Order Number:
MC10SX1190/D