Product category:
Analogue and Mixed Signal ICs
News Release from: Xicor | Subject: X9530
Edited by the Electronicstalk Editorial
Team on 22 October 2002
Better accuracy from laser diode bias
controller
The X9530 laser diode bias controller for Gigabit fibre-optic transceivers incorporates dual temperature-compensated current sources for accurate overall temperature compensation.
The X9530 laser diode bias controller for Gigabit fibre-optic transceivers incorporates dual temperature-compensated current sources that provide more accurate overall temperature compensation than competing products that use temperature compensated resistors The improved performance is especially critical for 10Gbit/s fibre-optic transceivers
This article was originally published on Electronicstalk on 13 Jul 2004 at 8.00am (UK)
Related stories
Digital pots aim for space saving applications
The X93155 and X93255 ultra-low-power digitally controlled potentiometers address new market needs for high volume and space constrained applications.
High-accuracy reference targets portable uses
The X60008A-50 is an extremely stable, highly accurate, low-power 5V voltage reference that is ideal for use in battery powered high-resolution data-acquisition systems.
The X9530 has 2Kbit of on-chip programmable EEPROM that are accessible through a two-wire serial interface.
Many of the device's features can be customised by reprogramming the nonvolatile registers, allowing a better fit into a wide range of fibre-optic transceivers including Gigabit Ethernet, Fibre Channel and Sonet/SDH.
Operating from 3 to 5.5V, the X9530 accommodates modules using distributed feedback (DFB) and vertical cavity surface emitting laser (VCSEL) type laser diodes.
The die-size chip-scale package (CSP) measures 2.7 by 3.5mm and is an excellent fit for small-form-factor Xenpak modules.
Based on a proprietary Xicor EEPROM process, the X9530 operates at a wider temperature range of temperature from -40 to +100C, bringing added reliability to high-power modules.
Additional features of the X9530 include a hot-plug compatibility that allows a reliable startup under any hot-plug condition, and on-chip analogue and digital filters that eliminate glitches during output switching inherent in temperature compensation.
The X9530 allows on-chip and off-chip voltage references for the analogue-to-digital convertor and also allows use of either on-chip or off-chip temperature sensing.
This feature enables remote temperature sensing and improved temperature compensation of laser-diode modulation and bias currents.
Production samples are available immediately for the X9530.
The device is offered in TSSOP and chip-scale packaging.
• Xicor: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
