| 摘要 |
Apparatus and methods are disclosed, such as those involving a high frequency transmitter. One such apparatus includes a pre-amplifier configured to receive an input signal via an input node; and a capacitor block electrically coupled between the pre-amplifier and an output node from which an output signal is transmitted. The capacitor block is configured to provide charge to the output node or pull charge from the output node while the output signal transitions. The apparatus further includes a switch electrically coupled between the output node and a voltage reference, wherein the switch is turned on or off at least partly in response to a signal from the pre-amplifier. This configuration effectively reduces rise and fall time of the output signal for high-frequency transmission.
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