Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - customised TQFN 24

DS1886

SFP and PON ONU Controller

with Digital LDD Interface

2Maxim Integrated

TABLE OF CONTENTS

General Description ............................................................................ 1

Applications

.................................................................................. 1

Features

..................................................................................... 1

Absolute Maximum Ratings

..................................................................... 10

Recommended Operating Conditions

............................................................. 10

DC Electrical Characteristics

.................................................................... 10

DAC Electrical Characteristics

................................................................... 11

Analog Voltage Monitoring Characteristics

......................................................... 11

Digital Thermometer Characteristics

.............................................................. 11

AC Electrical Characteristics

.................................................................... 12

Startup Timing Characteristics

................................................................... 12

3-Wire Digital Interface Specification

.............................................................. 12

C AC Electrical Characteristics ................................................................. 13

Nonvolatile Memory Characteristics

............................................................... 13

Typical Operating Characteristics

................................................................ 14

Pin Configuration

............................................................................. 15

Pin Description

............................................................................... 15

Block Diagram

............................................................................... 16

Typical Operating Circuit—GPON ONU

............................................................ 17

Typical Operating Circuit—10G PON ONU

......................................................... 18

Detailed Description

........................................................................... 19

Monitors and Fault Detection

..................................................................19

Monitors

................................................................................19

ADC Monitors and Alarms

..................................................................20

Alarms and Warnings

......................................................................20

ADC Timing

.............................................................................20

Right-Shifting ADC Result

..................................................................21

Differential RSSI Input

.....................................................................21

Laser Bias and Laser Power Through TXMON

..................................................22

Enhanced RSSI Monitoring (Dual Range Functionality)

...........................................22

APD Mode

.............................................................................22

PIN Mode

..............................................................................23

Low-Voltage Operation

.......................................................................23

Power-On Analog (POA)

......................................................................24

Delta-Sigma Output and Reference

.............................................................25

Digital I/O Pins

..............................................................................26