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

Claim 11:
12. A system, comprising:
an integrated circuit comprising an interface module, wherein the interface module comprises:
a digital controller in a first power domain;
a first analog front end (AFE) circuit in a second power domain; and
up/down level shifters configured to communicate electrical signals that include a 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 are configured to 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 communication 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.