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Numéro de référence | ZL63039 | ||
Description | 12x6.25 Gb/s Multirate VCSEL Driver | ||
Fabricant | Zarlink Semiconductor | ||
Logo | |||
1 Page
ZL63039
12x6.25 Gb/s Multirate VCSEL Driver
Data Sheet
January 2008
Features
• Single +3.3 V supply dissipating 70 mW
per channel
• 12-channel VCSEL driver operates from
DC to 6.25Gb/s
• Individual channel control for enable, drive
currents, and VCSEL fault control
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• Adjustable temperature compensation
for threshold and modulation drive currents
• Selectable analog multiplexer provides
junction temperature, supply voltage, and
VCSEL bias current for each channel
• Programmable VCSEL fault detection with
autonomous fault handling and interrupt
• Squelch automatically disables channel
when input amplitude falls below
programmable threshold
• Adjustable VCSEL peaking control
• 2-wire interface provides access to internal
registers
• IC dimensions 2245 x 3870 um
• 250-micron channel pitch matches optical
ribbon fiber and VCSEL arrays
• Differential CML compatible inputs
with on-chip termination
Applications
• Single data rate (SDR) and double data
rate (DDR) XAUI
• Single data rate (SDR) and double data
rate (DDR) Infiniband®
• 1x, 2x, 4x Fiber Channel
• Gigabit Ethernet
• PCI Express 1.0 and 2.0
• SNAP12 optical modules
• Proprietary and CWDM parallel optical
modules
Description
The growing use of the Internet has created
increasingly higher demand for multi-Gb/s I/O
performance. The demand for 40 Gb/s
bandwidth and beyond fuels the growth of short-
reach 10 Gb/s infrastructures within high-end
telco and datacom routers, switches, servers and
other proprietary chassis-to-chassis links.
The Zarlink ZL63039 12x6.25Gb/s VCSEL Driver
is a 12-channel VCSEL driver designed
for various parallel optics and CWDM PMD
applications. It consists of a DC-coupled
amplifier with selectable threshold and
modulation currents optimized for driving
commercially available, common cathode
VCSELs from a single +3.3 V supply.
Individual channel settings are used to control the
threshold and modulation drive current and their
temperature coefficients, allowing the optical
output power and extinction ratio to be optimized.
A selectable analog multiplexer provides junction
temperature, supply voltage, and VCSEL bias
current for each channel to enable optical module
diagnostic features.
Data controlling the Zarlink ZL63039 VCSEL
driver settings is loaded by a simple 2-wire serial
serial interface reducing the number of pins
required of a microcontroller.
Page 1
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2008, Zarlink Semiconductor Inc. All Rights Reserved.
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Pages | Pages 20 | ||
Télécharger | [ ZL63039 ] |
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