Mixed Signal Devices Simplify Fiber Optic Modules

Offered as the newest member of the X9520 family of programmable mixed-signal products, the X9525 integrates functions for laser-diode modules in fiber LAN and Gb Ethernet applications. These include bias-current control, modulation control, and voltage-level sensing. The device combines two, non-volatile digitally controlled potentiometers, 2 KB of EEPROM, and an addressable function. Two models are available: the X925V20 priced at $3.75 and the X9525B20 priced at $4.14. For more details, call Fochson Fung at XICOR, INC., Milpitas, CA. (408) 546-3557.