© Semiconductor Components Industries, LLC, 2006

January, 2006 − Rev. 3

1

Publication Order Number:

MC10SX1190/D

MC10SX1190

Fibre Channel Coaxial

Cable Driver and Loop

Resiliency Circuit

Description

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 1.4 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

Features

>100 V Machine Model

19

20

18

17

16

15

14

2

1

3

4567

13

8

QR

QR

DT

DT

DR

DR

QT

QT

12

9

11

10

SEL

Figure 1. 20-Lead TSSOP Pinout: (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.

TSSOP−20

DT SUFFIX

CASE 948E

MARKING

DIAGRAM

SEL

Function

L

H

DR → QT

DT → QT

TRUTH TABLE

PIN DESCRIPTION

PIN

DR/DR

QR/QR ECL Buffered Differential Outputs from

Receive Cable

FUNCTION

ECL Diff. Inputs from Receive Cable

DT/DT

QT/QT

ECL Buffered Differential Output to

Transmit Cable

ECL Differential Input to Transmit Cable

SEL

Reference Voltage Output

TTL Multiplexer Control Signal

ECL Positive Supply

ECL Negative, 0 Supply

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)

*For additional marking information, refer to

Application Note AND8002/D.

http://onsemi.com

10SX

1190

ALYWG

G

See detailed ordering and shipping information in the package

dimensions section on page 5 of this data sheet.

ORDERING INFORMATION