MC10SX1130DR2【PDF 1/9 页】IC LED DRIVER LINEAR 16-SOIC

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Sheet目录342

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MC10SX1130

LED Driver

Description

The MC10SX1130 is high speed LED Driver/current switch

specifically targeted for use in FDDI PMD and ANSI X3T9.3

FibreChannel 266 Mbits/s optical transmitters. The integrated circuit

contains several unique functional blocks which makes it easily

configurable for use with a variety of high performance LED devices.

The part is fabricated using MOSAIC III ? bipolar process. The logic

is designed so that a data HIGH input results in the modulation current

flowing through the I OUT pin to turn on the LED.

The device incorporates open collector outputs with a capability of

driving peak currents of 100 mA. Since the output current switching

circuitry simply switches current between the complementary outputs,

the dynamic switching demands on the system power supply are

greatly reduced. In addition, because the design is pure bipolar, the

device current drain is insensitive to the data pattern and frequency of

operation.

The LED drive current is adjustable through the selection of an

external set resistor, RSET. In addition, to allow for open loop

compensation for the LED’s negative optical output power tracking

over temperature, a circuit is included to provide an adjustable positive

temperature tracking coefficient to the LED drive current. This is

controlled through the selection of an external resistor, RTCO.

The MC10SX1130 incorporates novel pulse stretching circuitry

which is intended to compensate for the turn-on delay and rise and fall

time asymmetry inherent in LED devices. The stretch circuitry can be

used to pre-distort the input signal pulse width to minimize the duty

http://onsemi.com

LED DRIVER

SOIC ? 16

D SUFFIX

CASE 751B

MARKING DIAGRAM

10SX1130G

AWLYWW

cycle distortion of the transmitted optical eye pattern. The stretch

circuitry supports three different selections of pre-distortion. This

choice is accomplished through a unique ‘tri-state’ input which can be

left open, tied to V CC , or tied to V EE to determine the pre-distortion

amount.

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb ? Free Package

The device provides a V BB output for either single-ended use or as a

DC bias for AC coupling the signal into the device. The V BB pin

should only be used as a bias for the MC10SX1130 as its current

sink/source capability is limited. Whenever used, the V BB pin should

be bypassed to ground via a 0.01 m F capacitor.

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

Features

? Differential Data Inputs

? 300 MHz Operation

? 100 mA Peak Drive Current

? Extremely Low Jitter

? Duty Cycle Distortion Compensation

? Adjustable Output Current Tracking With Temperature

Thermally Enhanced 16-Lead SOIC Package

75 k W Data Input Pulldown Resistors

+5 V or ? 5.2 V Operation

V BB Reference Available

Pb ? Free Packages are Available*

*For additional information on our Pb ? Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

? Semiconductor Components Industries, LLC, 2006

January, 2006 ? Rev. 3

Publication Order Number:

MC10SX1130/D

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