| 摘要 |
PURPOSE: An output buffer is provided to output stable output data by performing a de-emphasis function. CONSTITUTION: A multiplexer(10) generates inner data by serializing data. A pull-down predriver(30) generates a pull-down signal according to a logic level of a pull-down code signal. A de-emphasis predriver(40) generates pull-up and pull-down de-emphasis signals according to a logic level of a most significant bit of the pull-up and pull-down signal. A driver is driven in response to pull-up and pull-down signals and outputs output data with controlled amplitude to a pad(60) according to the logic level of the pull-up and pull-down de-emphasis signal. |
