| 摘要 |
A driver transmits data as a difference in the currents along two transmission lines. The driver provides a difference in the currents which is greater for relatively high frequency components, by transmitting relatively low frequency components in the data to both of the transmission lines. The degree to which low frequency components are transmitted to one of the lines is dependent upon the width (gain) of a transistor, and thus may be varied by changing the transistor width rather than the value of a passive component. In some versions of the device, the frequency response of the driver can be varied by selecting combinations of transistors to provide this gain. A calibration method allows the variable response to be tuned to properties of the transmission lines.
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