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DS1877T+T&R;

Description
IC CTLR/MON SFP 1-2CH 28TQFN
Categorysemiconductor    Analog mixed-signal IC   
File Size1MB,65 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS1877T+T&R; Overview

IC CTLR/MON SFP 1-2CH 28TQFN

DS1877T+T&R; Parametric

Parameter NameAttribute value
typeSFP+ controller
input typelogic
Output typelogic
interfaceI²C
Current - Power2.5mA
Operating temperature-40°C ~ 95°C
Installation typesurface mount
Package/casing28-WFQFN Exposed Pad
Supplier device packaging28-TQFN(5x5)
DS1877
SFP Controller for Dual Rx Interface
General Description
The DS1877 controls and monitors all functions for SFF,
SFP, and SFP+ modules including all SFF-8472 func-
tionality. 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
S
Meets All SFF-8472 Control and Monitoring
Requirements
S
Four Analog Monitor Channels: Temperature,
V
CC
, RSSI1, RSSI2
RSSI1 and RSSI2 Support Internal and External
Calibration
Differential Input
Common-Mode Range from GND to V
CC
Scalable Dynamic Range
Internal Direct-to-Digital Temperature Sensor
Alarm and Warning Flags for All Monitored
Channels
S
Two 10-Bit Delta-Sigma Outputs
Each Controlled by 72-Entry Temperature LUT
S
Digital I/O Pins: Four Inputs, Four Outputs
S
Comprehensive Loss-of-Signal (LOS) Detection
System
S
Flexible, Two-Level Password Scheme Provides
Three Levels of Security
S
120 Bytes of Password-1 Protected Memory
S
128 Bytes of Password-2 Protected Memory in
Main Device Address
S
256 Additional Bytes Located at A0h Slave
Address
S
Receiver 1 is Accessed at A2h Slave Address
S
Receiver 2 is Accessed at B2h Slave Address
S
I
2
C-Compatible Interface
S
+2.85V to +3.9V Operating Voltage Range
S
-40NC to +95NC Operating Temperature Range
S
28-Pin TQFN (5mm x 5mm x 0.75mm) Package
Applications
SFF, SFP, and SFP+ Transceiver Modules
Dual Rx Video SFPs
Ordering Information
PART
DS1877T+
DS1877T+T&R
TEMP RANGE
-40NC to +95NC
-40NC to +95NC
PIN-PACKAGE
28 TQFN-EP*
28 TQFN-EP*
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP
= Exposed pad.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5188; Rev 1; 4/10

DS1877T+T&R; Related Products

DS1877T+T&R; DS1877 DS1877T+TR
Description IC CTLR/MON SFP 1-2CH 28TQFN SFP Controller for Dual Rx Interface SFP Controller for Dual Rx Interface

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