for SANs is leading the data rate requirements for
current 1 Gb/s and 2 Gb/s optical modules while
demanding full backward compatibility.
The
Zarlink PX5420 multi-rate TIA/LA optical receiver
provides the performance and feature set required
by competitive SFF and SFP optical modules.
The Zarlink PX5420 optical receiver is a single
channel TIA/LA optical receiver designed for
various applications to 4.25 Gb/s. It consists of a
transimpedance amplifier (TIA) and an AC-coupled
differential limiting amplifier (LA).
The transimpedance amplifier achieves a nominal
bandwidth of 3 GHz over a wide range of
photodiode input capacitance. A photodiode bias
current monitor allows for a simple alignment
procedure.
The transimpedance amplifier is AC-coupled
internally to a high-gain, high-bandwidth, limiting
amplifier.
The limiting amplifier provides a
differential back-terminated current-mode logic
(CML) output that can be used to drive a 4.25 Gb/s
intra module post amplifier or directly drive to the
edge of the module.
Full diagnostics are delivered through loss of
signal, squelch, and received signal strength
indicator circuits.
Features
•
Integrated transimpedance and limiting
amplifier for serial optical receiver
applications
Receiver sensitivity 10 µA
pp
for 10
-12
BER
at 4.25 Gb/s
Receive signal strength indicator (RSSI)
Loss of signal indicator (LOS)
Selectable squelch circuit disables output
at low input levels
Back-terminated 50-ohm CML output
Selectable 250 mV or 650 mV differential
output amplitude
No external passives required for
photodiode bias network
Single +3.3 V supply dissipating 100 mW
•
•
•
•
•
•
•
•
Applications
•
•
•
Receive optical sub-assemblies (ROSA)
4GFC, 2GFC, 1GFC, OC-48, GbE
SFP/SFF and proprietary optical modules
1
Zarlink Semiconductor Inc.
PX5420
Figure 1:
4.25 Gb/s differential data output using a PRBS23 data pattern
Product Brief
Figure 2:
Diagram shows a typical bonding configuration
for the PX5420 mounted on a TO-46 header.
The figure shows a photodiode attached directly
on the PX5420 IC. Also shown are two
microwave chip capacitors. A single capacitor
connected to a 3.3 V supply is required. The
second capacitor (not connected to an external
supply) is recommended but not required.
Capacitor values of 200 fF are typical but vary
by application environment.
Figure 3:
Similar configuration as Figure 2. OAC pad
connected to VCC providing increased output
amplitude. Sq_En (also connected to VCC)
disables the limiting amplifier when LOS is
asserted.
Required
Chip-Cap
3.3 V
3.3 V
GND
DP
DP
GND
3.3 V
3.3 V
Required
Chip-Cap
DP
DP
1200
GND
Rate
RSSI
Select
Optional
Chip-Cap
DN
DN
Rate
RSSI
Select
1200
GND
DN
DN
Optional
Chip-Cap
2
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.
HTTP request process:
Enter the target website, send a GET request or POST request through http, find the corresponding function through the code, and return relevant data.
What are GET and POST reque...
In the MSP430 series of microcontrollers, the hardware multiplier is a peripheral module, not part of the CPU core; so its activity has nothing to do with the activity of the CPU, and its registers ar...
I can access the Internet again in my rented house. I haven’t accessed the Internet on my laptop for a long time.Clean up the files on your desktop.Thinking back, I first wrote this in my phone's draf...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
Programming Basics
京公网安备 11010802033920号
EEWORLD
