SY88702KI TR Micrel Inc, SY88702KI TR Datasheet

SY88702KI TR

Manufacturer Part Number

SY88702KI TR

Description

IC LASR DRVR 622MBPS 5.5V 10MSOP

Manufacturer

Micrel Inc

Type

Laser Diode Driver (Fiber Optic)r

Datasheets

1.SY88702KI_TR.pdf (5 pages)

2.SY88702KI_TR.pdf (6 pages)

Specifications of SY88702KI TR

Number Of Channels

Data Rate

622Mbps

Voltage - Supply

4.5 V ~ 5.5 V

Current - Supply

16mA

Current - Modulation

25mA

Operating Temperature

-40°C ~ 85°C

Package / Case

10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Mounting Type

Surface Mount

Operating Supply Voltage (max)

5.5V

Mounting

Surface Mount

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

SY88702KITR
SY88702KITR

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Micrel

The SY88702 features:

The SY88702 evaluation board features:

hbwhelp@micrel.com or (408) 955-1690

FUNCTIONAL FEATURES

AVAILABLE MEASUREMENTS

EVALUATION BOARD

Up to 622Mbps operation

Modulation current to 25mA

PECL output enable

Differential PECL inputs

Single 5V power supply

Available in a tiny 10-pin (3mm 3mm) MSOP

User adjustable potentiometer to adjust

modulation current

Unloaded open-collector outputs allow

flexibility for evaluating various output loads

AC-coupled inputs with SMA connectors

DC-coupled outputs with SMA connectors

Frequency performance

Output eye pattern generation

Mark testing

Jitter

Output rise/fall time

BER testing

equivalent input network termination

Figure 1. SY88702 Evaluation Board

5V 622Mbps LASER DIODE

DRIVER with OUTPUT ENABLE

a semiconductor laser diode in optical transmission

applications. The modulation current (I

by the current (I

The output OUT is HIGH and no current flows through

OUT when output enable is HIGH.

outputs with 25mA maximum current driving capability.

The external resistor R

/OUT and V

is recommended to compensate for laser diode matching

issues.

evaluation board. It should be used in conjunction with the

SY88702 data sheet, which contains full specifications of

the SY88702.

electrical evaluation of the SY88702 622Mbps laser diode

driver with output enable. The board is an easy-to-use,

single-layer high-speed microstrip design. It is designed to

be driven by a high-speed 622Mbps pattern generator and

provides onboard 50

generator’s outputs. The input termination network also

provides the required input bias of V

SY88702.

and provides for adjustability of the modulation current

through the adjustment of an on-board potentiometer. With

the amplitude of the voltage waveform displayed on the

scope, a user can verify the desired modulation current

through the equation: I

voltage waveform data also helps in evaluating various

parameters of the SY88702, as listed in the “Available

Measurements” section of this document.

on Micrel’s web site at www.micrel.com.

DESCRIPTION

The SY88702 is a high-speed current switch for driving

The device incorporates complementary open collector

This manual provides information on the SY88702

The SY88702 evaluation board enables fast and thorough

The board is intended to be terminated to a 50

All data sheets and support documentation can be found

to dissipate the worst case power. R

RSET

) through the external resistor R

mod

equivalent terminations for the

EXT

(mA) = V

EVALUATION BOARD

must be placed between

SY88702 Evaluation Board

amp

(V)/ 0.050k . The

Rev.: A

Issue Date: March 2004

OUT

) is controlled

–1.3V for the

SY88702

Amendment: /0

scope

SET

SER

Related parts for SY88702KI TR

SY88702KI TR Summary of contents

Page 1

Micrel FUNCTIONAL FEATURES The SY88702 features 622Mbps operation Modulation current to 25mA PECL output enable Differential PECL inputs Single 5V power supply Available in a tiny 10-pin (3mm 3mm) MSOP The SY88702 evaluation board features: User adjustable potentiometer ...

Page 2

Micrel MEASUREMENT SETUP Equipment used for measurements: 1. Agilent 83752A Synthesized Sweeper 2. Agilent 70004A Display 3. Agilent 70843B Error Performance Analyzer 4. Agilent 86100A Wide-Bandwidth Oscilloscope hbwhelp@micrel.com or (408) 955-1690 5. Two (2) ...

Page 3

Micrel SETUP FOR MEASUREMENTS This section explains how to connect and setup the SY88702 evaluation board per Figure 2. Ensure proper ESD precautionary measures are taken before handling sensitive electronic equipment, including the SY88702 evaluation board. 1. Set E3620A to ...

Page 4

Micrel MEASUREMENTS The SY88702 evaluation board assumes the use scope to terminate the SY88702. The current passing through this load creates a voltage swing used to measure various performance parameters of the SY88702. The current is adjustable ...

Page 5

Micrel FREQUENTLY ASKED QUESTIONS I just got my SY88702 evaluation board and I cannot get anything to work. What should I check first? First, check the power supplies. Remember, the board is V referenced, and hence uses a negative supply. ...

Page 6

Micrel BILL OF MATERIALS Item Part Number C1, C2, C3, C4 PCC1762CT-ND C5 P11317CT-ND J1, J3 TSW–103–07–S–S R1, R4 P200GCT-ND R2, R3 P68LCT-ND R5 3269W-1-203G R6 P5.1KGCT-ND S1, S2, S3, S4 142-0701-851 U1 SY88702 Notes: 1. Panasonic tel: 800-344-2112 2. ...

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