ML6633

September 1998 ML6633* High Speed Fiber Optic LED Driver GENERAL DESCRIPTION The ML6633 is a high speed fiber optic LED driver suited for networking applications up to 200 Mbps. The part is capable of driving up to 82mA of current through a fiber optic LED from an ECL level input signal. Its efficient output stage provides a high current that can be programmed for accurate absolute output level which insures precise launch power. The LED driver’s output stage provides a fast well matched rise and fall time through a unique differential output stage. The ML6633 high speed fiber optic LED driver is implemented in BiCMOS process and is available in an 8-pin SOIC package. FEATURES n Data rates up to 200Mbps n Current driven output for accurate launch power n Programmable output current from 20mA to 82mA n High Efficiency Output Stage n Low EMI/RFI Noise n ECL inputs n Industrial temperature version available n May be used with ML6622 quantizer APPLICATIONS n FDDI n Fast Ethernet, 100BASE-FX n ATM (SONET), 155Mbps n Proprietary high-speed fiber optic data links BLOCK DIAGRAM *Some Packages Are Obsolete ECLP 2 ECLN 3 8 VCC + BUFFER – + DRIVER – IOUT 7 RTSET 6 REF GND 5 1 ML6633 PIN CONNECTION ML6633 8-Pin SOIC (S08) NC ECLP ECLN NC 1 2 3 4 8 7 6 5 VCC IOUT RTSET GND TOP VIEW PIN DESCRIPTION PIN NAME DESCRIPTION PIN NAME DESCRIPTION 1 2 3 4 5 NC ECLP ECLN NC GND No Connect Positive ECL data input controls signal to the LED Negative ECL data input No Connect 6 RTSET ...