PX6524
4 x 10 Gb/s TIA/LA Receiver
Product Brief
April 2006
Description
The growing use of the Internet has created
increasingly higher demand for multi-Gb/s I/O
performance. The demand for 100+ Gb/s WAN
bandwidth fuels the growth of short-reach 40
Gb/s infrastructures within high-end telco and
datacom routers, switches, servers and other
proprietary chassis-to-chassis links. The Zarlink
PX6524 10 Gb/s TIA/LA Receiver is a four-
channel TIA/LA optical receiver designed for
various 4x10 Gb/s parallel optics and CWDM
PMD applications. It consists of a DC-coupled
transimpedance amplifier and an AC-coupled
differential limiting amplifier.
The transimpedance amplifier achieves a nominal
8 GHz bandwidth over a wide range of
photodiode input capacitance. Excellent channel-
to-channel isolation ensures data integrity at the
receiver sensitivity limits. A global signal detect
circuit provides the photodiode reverse bias
voltage supply and senses average photocurrent
supplied to the photodiode array.
The transimpedance amplifier is AC-coupled
internally to a high-gain, high-bandwidth
differential limiting amplifier.
The limiting
amplifier provides a differential back-terminated
CML output that can be used to drive 10 Gb/s per
channel transceivers or other CML compatible
clock and data recovery circuits. The limiting
amplifier features an adjustable signal detect
circuit that senses optical modulation amplitude
(OMA) to provide a received signal indication for
each channel.
Features
•
•
•
•
•
•
4-channel integrated transimpedance and liming
amplifier operates up to 10.7 Gb/s
20 uA
PP
receiver sensitivity for 10
-12
BER
Single +3.3V supply dissipating 160 mW per
channel
Individual channel signal detect compares input
signal strength (OMA) with adjustable threshold
Global signal detect compares quiescent
photocurrent with adjustable threshold
Squelch automatically disables output when
input signal strength falls below programmable
threshold
Serial digital interface for controlling channel
enable and signal detect features
Reconfigurable I/O provides access to serial
digital interface and dedicated channel signal
detect outputs
250-micron channel pitch matches optical ribbon
fiber and photodiode arrays
•
•
•
Applications
•
•
•
4-lane 10GbE, 10GFC, 8GFC, and OC-192 VSR
parallel optical modules
Proprietary OC-768 parallel optics and CWDM
Proprietary 4-lane intra-system parallel optics
1
Zarlink Semiconductor Inc.
For more information about all Zarlink products
visit our Web Site at
www.zarlink.com
Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively “Zarlink”) is believed to be reliable.
However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such
information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or
use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual
property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in
certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink.
This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part
of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other
information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the
capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute
any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and
suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does
not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in
significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink’s conditions of sale which are available on request.
Purchase of Zarlink’s I
2
C components conveys a licence under the Philips I
2
C Patent rights to use these components in and I
2
C System, provided that the system
conforms to the I
2
C Standard Specification as defined by Philips.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright Zarlink Semiconductor Inc. All Rights Reserved.
TECHNICAL DOCUMENTATION - NOT FOR RESALE
Embedded System
京公网安备 11010802033920号
EEWORLD
