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FN8206.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2005-2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
X9520
Fiber Channel/Gigabit Ethernet Laser Diode Control for Fiber Optic Modules
Triple DCP, POR, 2kbit EEPROM Memory,
Dual Voltage Monitors
The X9520 combines three Digitally Controlled
Potentiometers (DCPs), V1/VCC Power-on Reset (POR)
circuitry, two programmable voltage monitor inputs with
software and hardware indicators, and integrated EEPROM
with Block Lock™ protection. All functions of the X9520 are
accessed by an industry standard 2-Wire serial interface.
Two of the DCPs of the X9520 may be utilized to control the
bias and modulation currents of the laser diode in a Fiber Optic
module. The third DCP may be used to set other various
reference quantities, or as a coarse trim for one of the other two
DCPs. The 2kbit integrated EEPROM may be used to store
module definition data. 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 X9520 are ideally suited to simplifying the
design of fiber optic modules which comply to the Gigabit
Interface Converter (GBIC) specification. The integration of
these functions into one package significantly reduces board
area, cost and increases reliability of laser diode modules.
Features
• Three Digitally Controlled Potentiometers (DCPs)
- 64 Tap - 10kΩ
- 100 Tap - 10kΩ
- 256 Tap - 100kΩ
- Nonvolatile
- Write Protect Function
• 2kbit EEPROM Memory with Write Protect & Block Lock
™
• 2-Wire Industry Standard Serial Interface
- Complies to the Gigabit Interface Converter (GBIC)
specification
• 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 Ld Package
-TSSOP
• Pb-free available (RoHS compliant)
Ordering Information
PART NUMBER
PART
MARKING
PRESET (FACTORY SHIPPED) TRIPx
THRESHOLD LEVELS (x = 2, 3)
TEMP. RANGE
(°C) PACKAGE
PKG.
DWG. #
X9520V20I-A X9520V IA Optimized for 3.3V system monitoring** -40 to +85 20 Ld TSSOP MDP0044
X9520V20I-AT1* X9520V IA Optimized for 3.3V system monitoring** -40 to +85 20 Ld TSSOP MDP0044
X9520V20I-AT2* X9520V IA Optimized for 3.3V system monitoring** -40 to +85 20 Ld TSSOP MDP0044
X9520V20I-B X9520V IB Optimized for 5V system monitoring** -40 to +85 20 Ld TSSOP MDP0044
X9520V20I-BT1* X9520V IB Optimized for 5V system monitoring** -40 to +85 20 Ld TSSOP MDP0044
X9520V20IZ-A (Note) X9520V ZIA Optimized for 3.3V system monitoring** -40 to +85 20 Ld TSSOP (Pb-free) MDP0044
X9520V20IZ-AT1* (Note) X9520V ZIA Optimized for 3.3V system monitoring** -40 to +85 20 Ld TSSOP (Pb-free) MDP0044
X9520V20IZ-AT2* (Note) X9520V ZIA Optimized for 3.3V system monitoring** -40 to +85 20 Ld TSSOP (Pb-free) MDP0044
X9520V20IZ-B (Note) X9520V ZIB Optimized for 5V system monitoring** -40 to +85 20 Ld TSSOP (Pb-free) MDP0044
X9520V20IZ-BT1* (Note) X9520V ZIB Optimized for 5V system monitoring** -40 to +85 20 Ld TSSOP (Pb-free) MDP0044
* Please refer to TB347 for details on reel specifications.
** For details, see DC Operating characteristics
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100%
matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations.
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
Data Sheet August 20, 2007
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