Table of Contents Section 1 – New and Featured Products

®
Signal Conditioning/Calibration and Control Products
X9530 Temperature Compensated Laser Diode Controller
Product Highlights
• SONET and SDH Transmission System Laser Diode Bias Control
• 1G and 10G Ethernet, and Fibre Channel Laser Diode Driver Circuits
Key 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
VRef
— 2-wire Bus with 3 Slave Address Bits
• 3 V to 5.5 V, Single Supply Operation
Pin Configuration
TSSOP 14L
A0 1 14
A1 2 13
A2
Vcc
3
4
12
11
WP 5 10
SCL 6 9
SDA 7 8
I2
V Ref
V Sense
Vss
R2
R1
I1
VSense
SDA
SCL
WP
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 non-volatile 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 programmable
currents may be 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.
Block Diagram
Voltage
Reference
Temperature
Sensor
ADC
2-Wire
Interface
Mux
Mux
Look-up
Table 2
Look-up
Table 1
Control
& Status
General
Purpose
Memory
Mux
Mux
DAC2
DAC1
R2
I2
I1
R1
New & Featured Products
A2, A1, A0
Top View - Bumps Down CSP – B15
3 2 1
A
A0 I2 VRef
GBIC / SFP / XFP Module
Vcc A1 VSense
V
B
CC
High Speed
SCL A2 Vss
C
Data Input
LD MPD
SDA Vss R2
D
WP I1 R1 Laser
E
X9530
Diode
I Driver
I
I MON
MODSET LD
I 1
Circuit
See Product Family Tree
MOD_DEF (0) SDA
on page 2-12
MOD_DEF (1)
SCK I 2
I PINSET /I BIASSET
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