| 摘要 |
The present invention relates to receiver circuitry and methods for the reception of serial data and in particular to the setting of a gain within such circuitry so that the data may be successfully received. It provides a data receiver that comprises an amplifier connected to receive a data waveform and to amplify it, the amplifier having a controllable gain, a test sampler connected to sample the amplified data waveform to a 1 or 0 based on a reference level, to provide a set of test bits and a gain adjusting circuit responsive to the number of test bits that are one of 1 or 0 in the set of the test bits. |
