SY88722V Datasheet | Micrel Semiconductor

Micrel, Inc. 5V/3.3V 622Mbps LASER DIODE DRIVER WITH OUTPUT ENABLE Features s s s s s s Single 3.3V or 5V power supply Up to 622Mbps operation Modulation current to 30m A PECL output enable Differential PECL inputs Available in a tiny 10-pin (3mm) MSOP DESCRIPTION The SY88722V is a high speed current switch for driving a semiconductor laser diode in optical transmission applications. The modulation current (IOUT) is controlled by the current (IRSET) through the external resistor RSET. The output OUT is HIGH and no current flows through OUT when output enable is HIGH. The device incorporates plementary open collector outputs with a 30m A maximum current driving capability. The external resistor REXT must be placed between /OUT and VCC to dissipate the worst case power. RSER is remended to pensate for laser diode matching issues. Pins 9 and 10 should be connected to achieve better performance. The SY88722V utilizes the high performance bipolar ASSET™ technology. APPLICATIONS s 622Mbps SONET .. FUNCTIONAL BLOCK DIAGRAM REXT /OUT OUT RSER DIN /DIN Internal Logic to Laser Diode IMOD /EN 40X VCC GND VEE VREF RSET RSET ASSET is a trademark of Micrel, Inc. M9999-072505 hbwhelp@micrel. or (408) 955-1690 Rev.: B Amendment: /0 Issue Date: July 2005 Micrel, Inc. PACKAGE/ORDERING INFORMATION /EN 1 DIN 2 /DIN 3 VREF 4 RSET 5 10 OUT 9 OUT 8 /OUT 7 GND 6 VCC Ordering Information Part Number SY88722VKC SY88722VKCTR(1) SY88722VKG Package Type K10-1 K10-1 K10-1 K10-1 Operating Range mercial mercial Industrial Industrial Package Marking 722V 722V 722V with Pb-Free bar-line indicator 722V with Pb-Free bar-line indicator Lead Finish Sn-Pb Sn-Pb Pb-Free Ni Pd Au Pb-Free Ni Pd Au 10-Pin MSOP (K10-1) SY88722VKGTR(1) Note: 1. Tape and Reel. PIN DESCRIPTION Pin Number 1 2, 3 4 5 6 7 8, 9, 10 Pin Name /EN DIN, /DIN VREF RSET VCC GND /OUT, OUT Pin Function 100k PECL patible input with 75kΩ pulldown...