GENERAL DESCRIPTION
System diagnostics are provided by monitoring three analog inputs, VCC, and temperature through the internal temperature sensor. The DS1864’s memory map can be configured to be compatible with both the DS1852/DS1856 and the DS1859 memory maps. Additionally, memory is secured with customerconfigurable two-level password protection. Eye-safety features are integrated by three fast-trip comparators that monitor transmit-power high, transmitpower low, and bias current. The fast-trip comparators drive a FET driver output to disable the laser in the case of eye safety violation. With its integrated laser driver control, system diagnostics, eye-safety features, and internal temperature sensor, the DS1864 provides an ideal solution for SFP optical transceiver modules by improving system performance, reducing board space, and simplifying design. FEATURES
♦ SFF-8472 MSA Compatible ♦ Five Monitored Channels (Temperature, VCC, MON1, MON2, MON3) Three External Analog Inputs (MON...
Maxim Integrated
