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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim Integrated DS1878 SFP+ Controller
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Maxim DS1878 SFP+  Controller

Maxim Integrated DS1878 SFP+ Controller

Maxim Integrated DS1878 is a small form factor pluggable (SFP+) Controller with a digital laser diode driver (LDD) interface. The state machine based device implements SFF-8472 without software development. The DS1878 Controller from Maxim Integrated monitors six analog channels: temperature, VCC, and MON1 to MON4, with MON3 being differential with support for common mode to VCC.

Features
  • Meets All SFF-8472 Control and Monitoring Requirements
  • Laser Bias Controlled by APC Loop and Temperature LUT to Compensate for Tracking Error
  • Laser Modulation Controlled by Temperature LUT
  • Six Analog Monitor Channels: Temperature, VCC, MON1-MON4
  • MON1-MON4 Support Internal and External Calibration
  • Scalable Dynamic Range
  • Internal Direct-to-Digital Temperature Sensor
  • Alarm and Warning Flags for All Monitored Channels
  • Two 9-Bit Delta-Sigma Outputs with 36 Entry Temperature LUTs
  • Digital I/O Pins: Five Inputs, Four Outputs
  • Comprehensive Fault-Measurement System with Maskable Laser Shutdown Capability
  • Flexible, Two-Level Password Scheme Provides Three Levels of Security
  • 256 Additional Bytes Located at A0h Slave Address
  • I²C-Compatible Interface
  • 3-Wire Master to Communicate with a Maxim Laser Driver/Limiting Amplifier
  • +2.85V to +5.5V Operating Voltage Range
  • -40°C to +95°C Operating Temperature Range
  • 28-Pin TQFN (5mm x 5mm x 0.75mm) Package
Applications
  • SFF, SFP, and SFP+ Transceiver Modules
Block Diagram
Block Diagram
  • Maxim Integrated
  • Optoelectronics|Fiber Optic Communications