What is the voltage threshold for triggering a voltage-controlled delay-locked loop (DLL)?
1 Answer
The voltage threshold for triggering a Voltage-Controlled Delay-Locked Loop (DLL) can vary based on the specific design and implementation of the DLL, as well as the technology and voltage levels used in the circuitry. DLLs are used to align the phase of an output clock signal with a reference clock signal by adjusting the delay of the output signal.
In general, the voltage threshold for triggering a DLL can be set based on the desired delay adjustment range and the resolution required for the application. This threshold voltage might correspond to a specific delay increment that the DLL uses to adjust the output signal's delay. The DLL will trigger its delay adjustment mechanism when the input voltage crosses this threshold.
The threshold voltage can depend on factors such as the process technology used (CMOS, BiCMOS, etc.), supply voltage levels, design considerations, and the specific DLL architecture. It's common for these parameters to be specified by the designers during the implementation phase based on the requirements of the application.
It's important to consult the datasheet or documentation of the specific DLL you are using or designing to determine the exact voltage threshold for triggering the delay adjustment mechanism. The manufacturer's specifications will provide you with accurate information based on the design and technology used in the DLL.
In general, the voltage threshold for triggering a DLL can be set based on the desired delay adjustment range and the resolution required for the application. This threshold voltage might correspond to a specific delay increment that the DLL uses to adjust the output signal's delay. The DLL will trigger its delay adjustment mechanism when the input voltage crosses this threshold.
The threshold voltage can depend on factors such as the process technology used (CMOS, BiCMOS, etc.), supply voltage levels, design considerations, and the specific DLL architecture. It's common for these parameters to be specified by the designers during the implementation phase based on the requirements of the application.
It's important to consult the datasheet or documentation of the specific DLL you are using or designing to determine the exact voltage threshold for triggering the delay adjustment mechanism. The manufacturer's specifications will provide you with accurate information based on the design and technology used in the DLL.