X9530
Temperature Compensated Laser Diode Controller
FEATURES
• Compatible with Popular Fiber Optic Module
Specifications such as Xenpak, SFF, SFP, and
GBIC
• Package
—14 Pin TSSOP
—15 Lead 2.7 x 3.5mm CSP (Chip-Scale
Package)
• Two Programmable Current Generators
—±1.6 mA max.
—8-bit (256 Step) Resolution
• Integrated 6 bit A/D Converter
• Temperature Compensation
—Internal or External Sensor
—–40°C to +100°C Range
—2.2°C / step resolution
—EEPROM Look-up Tables
• Hot Pluggable
• 2176-bit EEPROM
—17 Pages
—16 Bytes per Page
• Write Protection Circuitry
—Xicor BlockLock™
—Logic Controlled Protection
—2-wire Bus with 3 Slave Address Bits
• 3 V to 5.5 V, Single Supply Operation
LASER DIODE BIAS CONTROL APPLICATIONS
• SONET and SDH Transmission Systems
• 1G and 10G Ethernet, and Fibre Channel Laser
Diode Driver Circuits
TYPICAL APPLICATION
GBIC / SFP / XFP Module
V
CC
High Speed
Data Input
Laser
Diode
Driver
Circuit
LD
MPD
DESCRIPTION
The X9530 is a highly integrated laser diode bias
controller which incorporates two digitally controlled
Programmable Current Generators, temperature
compensation with dedicated look-up tables, and
supplementary EEPROM array. All functions of the
device are controlled via a 2-wire digital serial
interface.
Two temperature compensated Programmable Current
Generators, vary the output current with temperature
according to the contents of the associated nonvolatile
look-up table. The look-up table may be programmed
with arbitrary data by the user, via the 2-wire serial
port, and either an internal or external temperature
sensor may be used to control the output current
response. These temperature compensated pro-
grammable currents maybe used to control the
modulation current and the bias current of a laser
diode.
The integrated General Purpose EEPROM is included
for product data storage and can be used for
transceiver module information storage in laser diode
applications.
X9530
I
1
MOD_DEF
(0)
MOD_DEF
(1)
SDA
SCK
I
2
I
PINSET
/I
BIASSET
I
MODSET
I
LD
I
MON
REV 3.7 8/26/04
www.xicor.com
Characteristics subject to change without notice.
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XICOR [ XICOR INC. ]
