A 1.4 Gb/s 12-channel parallel laser diode driver IC for optical interconnections
The authors present a 12-channel parallel laser diode (LD) driver with 16.8 Gb/s throughput. The driver IC creates skew-free output and provides temperature compensation of the optical power of the LD. The IC also suppresses ringing oscillation and crosstalk. The die is 2.5x3.5 mm/sup 2/ using a 15 GHz f/sub /spl tau// Si bipolar process. The power supply voltage is 5 V and the power consumption is 4.2 W including the PECL level input signal consumption of 1.1 W and the output signal consumption of 2.0 W at 3l mApp + 2 mA bias.
Si bipolar 3.3 V transmitter/receiver IC chip set for 1 Gb/s 12-channel parallel optical interconnects
In view of the recent progress of data communication and multimedia technology, high-throughput I/O interfaces are required to realize systems that have higher performance. Many types of optical interconnects have been proposed, as alternatives to electrical ones, to solve certain problems respecting electromagnetic interference (EMI) and/or extension of connection distance. An optical parallel interconnect has an advantage of simple structure and short latency time compared with a serial one. This paper presents an IC chip set operating with a 3.3 V single power supply for 12-channel parallel optical transmitter/receiver modules as a universal interface device between inter- and/or intracabinet circuits.
Research on automatic tracking solar power system
The paper elaborates the features of solar power. On the foundation of it, it analyses the composing, the theory and the features of solar power system of automatic tracking, analyzing the function of mental composing and the important technology, making a compartment of the amount of generation of solar power system of automatic tracking and that of common solar power system.