DS1877 SFP Controller for Dual Rx Interface

PublishTime：2021-06-21

●The DS1877 controls and monitors all functions for SFF, SFP, and SFP+ modules including all SFF-8472 functionality. The device supports all LOS functions for two receivers, and continually monitors for LOS of either channel. Four ADC channels monitor V-CC, temperature, and two differential external monitor inputs that can be used to meet all monitoring requirements. Two digital-to-analog converter (DAC) outputs with temperature-indexed lookup tables (LUTs) are available for additional monitoring and control functionality.
●Features
■Meets All SFF-8472 Control and Monitoring Requirements
■Four Analog Monitor Channels: Temperature, VCC, RSSI1, RSSI2
RSSI1 and RSSI2 Support Internal and External Calibration Differential Input Common-Mode Range from GND to VCC Scalable Dynamic Range Internal Direct-to-Digital Temperature Sensor Alarm and Warning Flags for All Monitored Channels
■Two 10-Bit Delta-Sigma Outputs Each Controlled by 72-Entry Temperature LUT
■Digital I/O Pins: Four Inputs, Four Outputs
■Comprehensive Loss-of-Signal (LOS) Detection System
■Flexible, Two-Level Password Scheme Provides Three Levels of Security
■120 Bytes of Password-1 Protected Memory
■128 Bytes of Password-2 Protected Memory in Main Device Address
■256 Additional Bytes Located at A0h Slave Address
■Receiver 1 is Accessed at A2h Slave Address
■Receiver 2 is Accessed at B2h Slave Address
■I²C-Compatible Interface
■+2.85V to +3.9V Operating Voltage Range
■-40℃ to +95℃ Operating Temperature Range
■28-Pin TQFN (5mm x 5mm x 0.75mm) Package

Brand of Product：	Maxim
Part#：	DS1877 、 DS1877T+ 、 DS1877T+T&R More Part#
Product Category：	SFP Controller More
Application：	[ SFF Transceiver Modules ][ SFP Transceiver Modules ][ SFP+ Transceiver Modules ][ Dual Rx Video SFPs ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	TQFN-EP;TQFN
Language：	English Chinese Chinese and English Japanese
Date of Creation：	4/10
Version Number：	Rev 1
Data Encoding：	19-5188
Data Size：	1.8 MB

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