SY100EL1001 Datasheet | Micrel Semiconductor

Micrel, Inc. LASER DIODE DRIVER WITH INPUT D FLIP-FLOP Features s Up to 1.25Gb/s operation s 75m A peak drive current s Separate modulation control s Separate master reset for laser safety s Differential inputs for data and clock s 75KΩ input pulldown resistor s Single power supply s Available in 16-pin SOIC package DESCRIPTION The SY100EL1001 is a high speed current source for driving a semiconductor laser diode in optical transmission applications. The output current modulation is DC - voltage controlled. The integrated circuit contains the following functional blocks: - Input Line Receiver - D Flip-Flop - Bias Control Circuitry - Output Current Switch A logic HIGH level at the data input results in the modulation current flowing through the OUT pin on the next rising edge of the clock. A logic HIGH level at the master reset input will disable the modulation current. The device incorporates plementary open collector outputs with a capability of driving peak current of 75 m A. The laser driver current is adjustable by selection of RSET. The resistor REXT must be placed between /OUT and VCC to dissipate the worst case power. RSER is remended to fix laser diode matching issues. The SY100EL1001 utilizes the high performance bipolar ASSET™ technology. BLOCK DIAGRAM D, D CLK, CLK VCC REXT VBB OUT D Flip-Flop BIAS Control Modulation Control MC RSET VEE OUT RSER to Laser Diode ASSET is a trademark of Micrel, Inc. M9999-031306 hbwhelp@micrel. or (408) 955-1690 Rev.: I Amendment: /0 Issue Date: March 2006 Micrel, Inc. PACKAGE/ORDERING INFORMATION NC 1 CLK 2 CLK 3 RSET 4 VCCO...