Two Channel SATA 3-Gbps Redriver
　　A. Place supply capacitors close to the pin.
　　B. EN can be left open or tied to supply when no external control is implemented.
　　C. Output pre-emphasis (PE1, PE2) is shown enabled. Setting depends on device palcement

用SN75LVCP412A组成的SATA/eSATA接口驱动电路