GENERAL DESCRIPTION

The ML4632 is a fiber optic LED driver suited for network applications up to 20Mbps. The part is capable of driving up to 100mA of current through a Fiber Optic LED from an ECL or TTL level input signal. Its efficient output stage provides a high current that can be programmed for accurate absolute output level as well as automatic temperature compensation. The combination of automatic temperature compensation and a highly accurate current driven design insures precise launch power.

FEATURES

■ Current Driven Output for accurate Launch Power

■ Programmable output current from 20mA to 100mA

■ Programmable temperature coefficient, 0 to 3300ppm/°C

■ High Efficiency Output Stage

■ Programmable LED pre-bias current

■ Low EMI/RFI Noise

■ ECL or TTL inputs

■ Optional Peaking circuit

APPLICATIONS

■ IEEE 802.3, 10BASE-F

■ IEEE 802.5 Fiber Optic Token Ring

■ IEEE 802.4 Fiber Optic Token Bus

■ Fiber Optic Data Communications and Telecommunications