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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 495

A complete compact APD bias solution for a 10Gbits/s GPON system

Xin Qi

Abstract

A complete compact avalanche photo diode (APD) bias solution for a 10Gbits/s GPON system is described.

Keywords

Avalanche photo diode

APD

LT3482

Introduction

Avalanche photo diode (APD) receiver modules are widely used in fiber optic communication systems. An APD module contains the APD and a signal conditioning amplifier, but is not completely self-contained. It still requires significant support circuitry including a high voltage, low noise power supply and a precision current monitor to indicate the signal strength. The challenge is squeezing this support circuitry into applications with limited board space. The LT3482 addresses this challenge ...

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