Patent ID: 11921651
Assignee: AYDEE KAY LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A method for communicating electrical signals that include a DC component from a first power domain to a second power domain, comprising:
by an interface module:
communicating the electrical signals that include the DC component from a digital controller in the first power domain to a first analog front end (AFE) in the second power domain, wherein the communicating comprises performing level shifting, using up/down level shifters, of the electrical signals that include the DC component from the first power domain to the second power domain,
wherein, for electrical signals having an allowed latency exceeding a predefined value, the up/down level shifters use level-shifted electrical signals to drive a message between the first power domain and the second power domain and to update state information, and
wherein the communicating of the electrical signals from the first power domain to the second power domain by a given level shifter in the up/down level shifters comprises transforming a single-ended electrical signal into a differential electrical signal, which is received differentially across the power-domain boundary between the first power domain and the second power domain and is then converted back to a single-ended electrical signal.