DS1864 Description
The DS1864 is an SFF-8472 multisource agreement (MSA)-pliant laser controller/monitor that is ideal for SFP optical-transceiver module designs. It controls laser driver bias and modulation currents through a pair of temperature-controlled current-sink DACs. System diagnostics are provided by monitoring three analog inputs, VCC, and temperature through the internal temperature sensor.
DS1864 Key Features
- SFF-8472 MSA patible
- Five Monitored Channels (Temperature, VCC, MON1, MON2, MON3) Three External Analog Inputs (MON1, MON2, MON3) Support Int
- Two Linear 8-Bit Current-Sink DACs Two User-Selectable Full-Scale Ranges (0.5mA or 1.5mA) Values Changeable Every 2°C
- Three Fast-Trip parators (Tx Power High, Tx Power Low, and Bias Current) for Eye Safety
- Flexible, Two Level Password Scheme Provides Three Levels of Security
- Provides All Optional and Required SFF-8472 MSA EEPROM (Both A0h and A2h Memory)
- I2C-patible Serial Interface
- Operates from a 3.3V or 5V Supply
- 40°C to +95°C Operating Temperature Range
- 28-Pin TQFN Package (5mm x 5mm)