The Maxim DS1852B-000 is a EEPROM Optical Transceiver Diagnostic Monitor. The DS1852 transceiver monitor manages all system monitoring functions in a fiber optic datatransceiver module, in accordance with proposal SFF-8472. Its functions include 2-wire communicationswith the host system, EEPROM memory for identification, tracking, and calibration, an ADC with fourmuxing inputs, three fast comparators, and a temperature sensor to monitor an optical transceiver. TheDS1852 has programmable alarm and warning flags for all four analog-to-digital (A/D) conversionvalues (three user analog inputs plus supply voltage) as well as the temperature. These conditions can beused to determine critical parameters inside each module. The three fast comparators have temperature-compensatedprogrammability. The temperature dependencies of the trip points aid in assessing criticalconditions.
