APPARATUSES AND METHODS FOR CHANGING SIGNAL PATH DELAY OF A SIGNAL PATH RESPONSIVE TO CHANGES IN POWER

摘要

Apparatuses and methods for changing a signal path delay of a signal path responsive to changes in power provided to the signal path are disclosed. An example apparatus includes a signal path and signal path delay compensation circuit. The signal path includes a plurality of signal driver circuits coupled in series. The signal path delay compensation circuit includes an adjustable path delay circuit and a bias circuit. The adjustable path delay circuit is coupled to an output of a signal driver circuit of the plurality of signal driver circuits and includes a latch circuit. The bias circuit is configured to change a resistance to switching a latched signal level of the latch circuit responsive to changes in power provided to the signal path. Additional example apparatuses and methods are also disclosed.

主权项

1. An apparatus, comprising:
a signal path having a signal path delay and configured to propagate an input signal therethrough and provide an output signal having the signal path delay relative to the input signal; an adjustable path delay circuit coupled to the signal path, the adjustable path delay circuit including first and second driver circuits, the first driver circuit having a first bias adjustable drivability and the second drive circuit having a second bias adjustable drivability, the first drive circuit having an output couples to an output of a signal drive included in the signal path, and the second driver circuit having an input coupled to the output of the signal driver included in the signal path and the second driver circuit having an output coupled to an input of the first drive circuit; and a bias circuit coupled to the adjustable path delay circuit and configured to provide bias signals to the first and second driver circuits to change the first and second adjustable drivability thereof responsive to changes in power provided to the signal path.