network access products 3 Gbps lntermediate Reach Laser Driver CX02066 The CX02066 is a low-cost 3 Gbps laser driver designed for short-reach SONET applications. The modulator is capable of driving modulation currents up to 85 mA. The modulation current is adjustable by an external resistor. The IC has an internal temperature compensation circuit for compensating the temperature characteristic of laser diode slope efficiency adjusted with an external resistor. External bias and modulation monitors are provided, as well as safety alarm functions. GND VCC CLK CLK VCC GND VCC DIN DIN Vcc GND CEN VCC ENA OCA SET DIS MOD SET GND GND BIAS MON MPC SET MOD MON TC SET FAIL GND • DC-coupled operation GND TC ADJ • Differential PECL inputs OCA GND • Temperature compensation of modulation current GND CMPC Vcc Vcc Distinguishing Features • 3 Gbps at 85 mA • Mean laser power control • Laser fault fail indicators • Bias/modulation current monitor output IBIAS O/P GND O/P Vcc DOUT DOUT O/P Vcc O/P GND O/P GND IPD • 24-pin BCC++ package