| 摘要 |
A receiver comprises equalization circuitry implementing at least first and second gain adaptation loops associated with respective first and second frequency bands. The equalization circuitry in one aspect is operative to identify a pattern in a portion of a received serial data stream, and to perform gain adaptation for the receiver utilizing a particular one of the gain adaptation loops responsive to the identified pattern. For example, the gain adaptation may be performed utilizing a low frequency gain adaptation loop if the detected pattern is of a first type generally associated with a low frequency band, and may be performed utilizing a high frequency gain adaptation loop if the detected pattern is of a second type generally associated with a high frequency band. In other aspects, the first and second gain adaptation loops may be activated in a particular serial order or in parallel.
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