Optical Transceiver Diagnostic Monitor Implements MSA Proposals

The DS1852 is claimed as the industry's first optical transceiver diagnostic monitor to implement the enhanced monitoring features defined in the SFF-8472 Multisource Agreement(MSA) proposal. Functions include: EEPROM memory for identification, tracking and calibration; an ADC with four muxed inputs for monitoring system parameters; a temperature sensor; three fast comparators; and a 2-wire serial interface. Programmable alarm and warning flags for all four ADC inputs and a temperature sensor enable the device to alert the system to out-of-tolerance conditions for a variety of measured parameters. It is available in a 5x5 BGA package (0.8mm pitch) and operates from a 2.7V to 5.5V power supply over a -40(C to +100(C temperature range. According to the company, the DS1852's high level of integration reduces component count and size, and speeds up the design of optical transceivers. Pricing starts at $3.31 each/1,000. An evaluation kit is also available. DALLAS SEMICONDUCTOR, Dallas, TX. (800)998-8800.