Optical Networking

Converting signals back-and-forth from the electronic to the optical domain at the extremely high data rates demanded by present-day communications offers challenging component design problems. Laser diode drivers at one end and transimpedance amplifiers at the other end can handle data rates in the 10 GB/s region. Clock recovery and data retiming circuits are needed to clean up the received signals to allow efficient data acquisition or re-transmission.

Application Notes

AN-927 : Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies)
AN-849 : Using Op Amps as Comparators
AN-840 : Code Update via I²C®

AN-840 Companion Code (zip, 101 kB)

AN-762 : ADN2891 Evaluation Board
This application note describes the ADN2891 evaluation board.
AN-757 : Acquisition Times of the ADN2812
AN-746 : Supporting FDDI with the ADN2812
AN-729 : Evaluation Kit for the AD5254 Quad 256-Position I²C-Compatible Nonvolatile Memory Digital Potentiometer
AN-721 : ADM1068/ADM1069 Configuration Registers
AN-705 : 05: ADN8830-EVAL TEC Controller Instructions
AN-695 : Using the ADN8831 TEC Controller Evaluation Board (Rev. B, 9/2007)
AN-670 : 0: A Complete EDFA/Raman Pump and CW Laser Solution
AN-658 : Optical Channel Identification on the ADN284x Laser Drivers (Part I)
AN-657 : ADN2812 Evaluation Board
AN-655 : Tunable Laser Reference Design for Designers with the ADuC832/ADN8830/ADN2830
AN-654 : Optical Module Development Platform 2.5 Gbps Transmitter with Digital Diagnostics
The SFP Digital Diagnostics Development Board is a platform designed to enable optical module designers to develop SFP and SFF compliant transceivers with digital diagnostics.
AN-649 : Using the Analog Devices Active Filter Design Tool
AN-643 : Closed-Loop Control Circuit Implementation of the ADuC832 MicroConverter®IC and the AD8305 Logarithmic Converter in a Digital Variable Optical Attenuator
AN-638 : ADN2847 AC-Coupled Optical Evaluation Kit
This application note describes the 32-lead ADN2847 laser diode driver Rev. A1 evaluation kit. The evaluation kit is a demonstration board that provides ac -coupled opti - cal evaluation of the ADN2847. This document describes how to configure the board to operate these parts optically.
AN-637 : ADN2848 AC-Coupled Optical Evaluation Kit
This application note describes the 32-lead ADN2848 laser diode driver Rev.A1 evaluation kit. The evaluation kit is a demonstration board that provides ac-coupled optical evaluation of the ADN2848. This document describes how to configure the board in order to operate this part optically.
AN-636 : ADN2819 Evaluation Board
This application note describes the use of the ADN2819 evaluation board. The ADN2819 is a multirate clock recovery, data-retiming device based on a multiloop PLL architecture. The ADN2819 can recover clock and data at SONET OC-3,OC-12,OC-48,and Gigabit Ethernet data rates as well as 15/14 Forward Error Correction (FEC)for these rates by using a single reference clock or external crystal oscillator.
AN-634 : Using the ADN2830 Evaluation Board
AN-627 : AD5235 Evaluation Kit User Manual
AN-619 : Using the ADN8810 Demo Board (v2.0)
... The ADN8810 is a 12-bit,high output current D/A converter that is controlled through a serial peripheral interface (SPI). The device can be used as a current source for tunable lasers or other precision high output current applications, like 4 –20 mA control loops.
AN-359 : Settling Time of Operational Amplifiers
AN-358 : Noise and Operational Amplifier Circuits
AN-357 : Operational Integrators
AN-356 : User's Guide to Applying and Measuring Operational Amplifier Specifications
AN-3 : AB-3: Digital Nulling of Precision Op Amps
AN-257 : Careful Design Tames High Speed Op Amps
AN-256 : Accurately Testing Op Amp Settling Times
AN-253 : Find Op Amp Noise with Spreadsheet
AN-138 : SPICE-Compatible Op Amp Macro-Models
AN-117 : OP-42 Advanced SPICE Macro-Model
AN-113 : AB-113: Precision Ramp Generator
AN-112 : AB-112: Single Resistor Controls Wien Bridge Oscillator Frequency
Frequency control can be added to the conventional Wien Bridge Circuit by adding an op amp inverter.
AN-111 : AB-111: Single-Supply Wien Bridge Oscillator
Wien Bridge Oscillators require only one op amp, important in battery-operation. This circuit operates from a single 9V battery.
AN-109 : AB-109: High Speed Precision Rectifier
The low offsets and excellent load driving capability of the OP-27 are key advantages in this precision rectifier circuit.
AN-108 : 08: JFET-Input Amps are Unrivaled for Speed and Accuracy
AN-106 : 06: A Collection of Amp Applications
Examines Some of the Numerous and Widely Used Applications of the Operational Amplifier

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