DS1847/DS1848查找表的注意事项

摘要：本应用笔记涵盖的查找表中使用控制激光偏置电流和调制。表是基于温度的前馈控制的一部分变化值随着温度的变化控制信号。

Maxim > App Notes > DIGITAL POTENTIOMETERS FIBER-OPTIC CIRCUITS

Keywords: fiber optics, fibre, look-up table, laser control, bias calibration, modulation calibration, feedforward laser control, laser temperature dependence Jan 08, 2002

APPLICATION NOTE 167
Considerations for the DS1847/DS1848 Look-Up Tables

Abstract: This application note covers the use of look-up tables in the control of laser bias and modulation. The tables are a part of a feedforward control based on temperature
which varies the value of the controlling signal as temperature changes.


Introduction

The DS1847 and DS1848 are digitally controlled resistors. The look-up tables in these parts are used to store Resistor positions that discretely compensate for the user’s application
temperature de