I7032 Datasheet PDF - ETC

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I7032
ETC

Part Number I7032
Description 200 Mbps Laser-Diode Driver
Page 14 Pages


I7032 datasheet pdf
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i7032
200 Mbps Laser-Diode Driver
Data Sheet
iCreate Technologies Corporation
© 2003 iCreate Technologies Corporation
This document contains preliminary information on product but not yet fully characterized.
iCreate Technologies Corporation reserves the right to change the specification in any manner without notice.
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© Copyright 2002 iCreate Technologies Corporation
Information contained in this publication is intended through suggestion only and may be superseded by updates.
No liability is assumed by iCreate Technologies Corporation with respect to the use of such information or
otherwise and no representation or warranty is given. Use of iCreate’s products as critical components in life
support systems is not authorized.
No part of this document may be reproduced or transmitted in any form or by any means for any purpose without
the permission of iCreate. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.
The iCreate logo and name are registered trademarks of iCreate Technologies Corporation. All rights reserved.
All other trademarks mentioned herein are the property of their respective companies.
Data sheet marking
iCreate uses various markings in the data sheet to designate each document phase as it relates to the product
development stage.
Marking
Objective Specification
Advance Information
Preliminary
No Marking
Description
The objective specification contains data for new product development.
The information is on products in the design phase. Your designs should not be
finalized with this information.
This is preliminary information on new products but not yet fully characterized.
The specifications in these data sheets are subject to change in any manner
without notice.
Information contained in the data sheet is on products in full production.
For more information please contact:
iCreate Technologies Corporation
No. 6, Technology Rd. V, Science-Based Industrial Park,
Hsinchu, Taiwan 300
Phone +886-3-579-0000
Fax +886-3-579-0077
e-mail support@icreate.com.tw
Revision:3.0
Date: 4/2004
© 2003 iCreate Technologies Corporation
This document contains preliminary information on product but not yet fully characterized.
iCreate Technologies Corporation reserves the right to change the specification in any manner without notice.
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i7032
+3.3V to +5.0V, 200Mbps Laser-Diode Driver
1. Introduction
1.1. General description
The i7032 is the 3.3V to 5V, 200Mbps laser-diode
driver with automatic power control (APC). Both accept
differential PECL inputs and provide complementary
output currents. A temperature-compensated reference
voltage is provided for laser bias and modulation
current programming. This allows maximum 80mA to
be programmed for bias and modulation current with
two external resistors.
The i7032 provides adjustable temperature-
compensated modulation current to keep the optical
extinction rate within specifications over the operation
temperature range.
The APC circuits incorporated with a monitor
photo-diode and two external resistors maintain laser’s
average power. A failure-monitor output is provided to
indicate when the APC loop is unable to maintain
average power. To prevent laser diode damage, an
integrated soft-start circuit is provided. The output load
can be DC and AC coupled in both 3.3V and 5V
applications.
The i7032 is in 24-pin QFN package.
2. Pin configuration and definition
2.1. Pin configuration
1.2. Features
Rise / fall time less than 1 ns.
Maximum 80mA bias current.
Maximum 80mA modulation current.
Differential PECL inputs.
Automatic Power Control (APC).
+3.3V to +5V supply voltage.
On chip temperature-compensated
reference voltage.
Wide operation temperature range: -
40 ~ +85 .
Integrated soft-start circuit.
On chip temperature-compensated
modulation current.
1.3. Applications
155Mbps SDH/SONET
Laser-Diode Transmitters
1.4 Ordering information
Part
Pin-Package
i7032-EN 24 QFN (4mmX4mm)
i7032-ET 32 TQFP (5mmX5mm)
24 23 22 21 20 19
ENABLE 1
VREF1 2
ROSADJ 3
IBIASFB 4
IBIASSET 5
IMODSET 66
i7032-EN
24-pin
QFN
18 FAILOUT
17 IPINSET
16 VREF2
15 SLWSTRT
14 IPIN
1134 VCCA
7 8 9 10 11 12
Figure 1. i7032-EN pin configuration
Figure 2. i7032-ET pin configuration
© 2003 iCreate Technologies Corporation
This document contains preliminary information on product but not yet fully characterized.
iCreate Technologies Corporation reserves the right to change the specification in any manner without notice.
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2.2. Pin definition
Pin Name
ENBABLE
VREF1
OSADJ
IBIASFB
IBIASSET
IMODSET
IBIASOUT
GNDA
OUT-
OUT+
VCCA
IPIN
SLWSTRT
VREF2
IPINSET
FAILOUT
GNDB
VIN+
VIN-
VCCB
IMODTC
DISABLE
NC
24-pin
QFN
Pin No.
1
32-pin
TQFP
Pin No.
11
Function
Non -inverting enable TTL input
2 12 Temperature-compensated reference output
3 13 Overshoot-adjust input
4 14 Bias feedback current output
5 15 Laser bias current programming input
6 16 Laser modulation current programming input
7 18 Laser bias current output
8,10,12 19,21,23 Ground
9 20 Modulation output
11 22 Modulation output
13 24,25 +3.3V to +5V supply voltage
14 26 Monitor photodiode current input
15 27 Slow start input
16 29 Temperature-compensated reference output
17 30 Monitor photodiode programming input
18 31 Fail output
19 2,4,6,9,28 Ground
20 3 Non-inverting PECL data input
21 5 Inverting PECL data Input
22 7 +3.3V to +5V supply voltage
23
8 Connecting a resistor between this pin and ground set the
temperature independency of the modulation current
24 10 Inverting enable TTL input
1,17,32 No Connect
© 2003 iCreate Technologies Corporation
This document contains preliminary information on product but not yet fully characterized.
iCreate Technologies Corporation reserves the right to change the specification in any manner without notice.
Page 2
ICR-DS-i7032001



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ETC
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