DESCRIPTION
The X9525 combines two Digitally Controlled Potentiometers (DCP’s), and integrated EEPROM with Block Lock™ protection. All functions of the X9525 are accessed by an industry standard 2-Wire serial interface.
The DCP’s of the X9525 may be utilized to control the bias and modulation currents of the laser diode in a Fiber Optic module. The 2kbit integrated EEPROM may be used to store module definition data.
The features of the X9525 are ideally suited to simplifying the design of fiber optic modules which comply to the Gigabit Interface Converter (GBIC) specification. The integration of these functions into one package significantly reduces board area, cost and increases reliability of laser diode modules.

FEATURES
• Two Digitally Controlled Potentiometers (DCP’s)
   —100 Tap - 10kΩ
   —256 Tap - 50kΩ
   —Non-Volatile
   —Write Protect Function
• 2kbit EEPROM Memory with Write Protect & Block
   LockTM
• Device ID Addressability
• 2-Wire industry standard Serial Interface
   —Complies to the Gigabit Interface Converter
      (GBIC) specification
   —Adressable
• Single Supply Operation
   —2.7V to 5.5V
• Hot Pluggable
• Packages
   —CSP (Chip Scale Package)
   —20 Pin TSSOP