Fractional frequency-divider circuit
WO2025254713A1PCT designated stage Publication Date: 2025-12-11APPLE INC
Patent Information
- Application Number
- PCT/US2025/021158
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-04
- Filing Date
- 2025-03-24
- Publication Date
- 2025-12-11
Smart Images
Figure US2025021158_11122025_PF_FP_ABST
Abstract
A fractional frequency-divider circuit is disclosed. The fractional frequency-divider circuit (100) includes a phase generation circuit (101) that receives an input clock signal (103) that has a first frequency, and generates multiple phase signals (104A-104E) using the input clock signal. The fractional frequency-divider circuit also includes a phase selection circuit (102) that selects different ones of the multiple phase signals at different times to generate an output clock signal (105) with a second frequency such that a ratio of the first frequency to the second frequency is a non-integer value.
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Citation Information
Patent Citations
System and method for calibrating an analog-to-digital converter using a rational sampling frequency calibration digital-to-analog converter
EP4203322A1
Multiple reference clock synthesizer
US20060220697A1