DS1847/DS1848 查找表时的注意事项

摘要： 本应用程序说明涵盖的激光偏见和调制控制中查找表的使用。表是基于温度的控制信号的价值随温度的变化前馈控制的一部分。

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