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X9523 Datasheet(PDF) 1 Page - Intersil Corporation

No. de Pieza. X9523
Descripción  Laser Diode Control for Fiber Optic Modules
Descarga  28 Pages
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Fabricante  INTERSIL [Intersil Corporation]
Página de inicio  http://www.intersil.com/cda/home
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X9523 Datasheet(HTML) 1 Page - Intersil Corporation

 
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1
®
FN8209.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
©2000 Intersil Inc., Patents Pending. Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
X9523
Laser Diode Control for Fiber Optic Modules
Dual DCP, POR, Dual Voltage Monitors
FEATURES
• Two Digitally Controlled Potentiometers (DCPs)
—100 Tap - 10k
Ω
—256 Tap - 100k
Ω
—Nonvolatile
—Write Protect Function
• 2-Wire Industry Standard Serial Interface
• Power-On Reset (POR) Circuitry
—Programmable Threshold Voltage
—Software Selectable reset timeout
—Manual Reset
• Two Supplementary Voltage Monitors
—Programmable Threshold Voltages
• Single Supply Operation
—2.7V to 5.5V
• Hot Pluggable
• 20 Pin Package
—TSSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)
DESCRIPTION
The X9523 combines two Digitally Controlled Potenti-
ometers (DCPs), V1 / Vcc Power-on Reset (POR) cir-
cuitry, qnd two programmable voltage monitor inputs
with software and hardware indicators. All functions of
the X9523 are accessed by an industry standard 2-Wire
serial interface.
The DCPs of the X9523 may be utilized to control the
bias and modulation currents of the laser diode in a Fiber
Optic module. The programmable POR circuit may be
used to ensure that V1 / Vcc is stable before power is
applied to the laser diode / module. The programmable
voltage monitors may be used for monitoring various
module alarm levels.
The features of the X9523 are ideally suited to simpli-
fying the design of fiber optic modules . The integra-
tion of these functions into one package significantly
reduces board area, cost and increases reliability of
laser diode modules.
BLOCK DIAGRAM
DATA
REGISTER
COMMAND
DECODE &
CONTROL
LOGIC
SDA
SCL
POWER-ON /
LOW VOLTAGE
CONSTAT
REGISTER
PROTECT LOGIC
THRESHOLD
RESET LOGIC
GENERATION
RESET
V2
VTRIP
V1 / Vcc
VTRIP
V3
+
-
2
3
1
V1RO
RH2
RW2
RL2
MR
8
WIPER
REGISTER
RH1
RW1
RL1
COUNTER
V2RO
WP
V3RO
7 - BIT
NONVOLATILE
MEMORY
NONVOLATILE
MEMORY
WIPER
REGISTER
COUNTER
8 - BIT
2
VTRIP
+
-
+
-
Data Sheet
January 3, 2006
NOT RECO
MMENDE
D FOR NE
W DESIG
NS
NO RECO
MMENDE
D REPLA
CEMENT
contact o
ur Techni
cal Suppo
rt Center
at
1-888-INT
ERSIL or
www.inte
rsil.com/t
sc


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