DS1873 Overview
The DS1873 controls and monitors all functions for SFF, SFP, and SFP+ modules including all SFF-8472 functionality. The DS1873 provides APC loop, modulation current control, and eye safety functionality. The DS1873 continuously monitors for high output current, high bias current, and low and high transmit power to ensure that laser shutdown for eye safety requirements are met without adding external ponents.
DS1873 Key Features
- Meets All SFF-8472 Control and Monitoring Requirements
- Six Analog Monitor Channels: Temperature, VCC, MON1-MON4 MON1-MON4 Support Internal and External Calibration Scalable Dy
- Four 10-Bit Delta-Sigma Outputs with 36 Entry Temperature LUTs Laser Bias Controlled by APC Loop and Temperature LUT to
- Digital I/O Pins: Five Inputs, Five Outputs
- prehensive Fault-Measurement System with Maskable Laser Shutdown Capability
- Flexible, Two-Level Password Scheme Provides Three Levels of Security