Invention Grant
- Patent Title: Unlimited bandwidth shifting systems and methods of an all-digital phase locked loop
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Application No.: US18544289Application Date: 2023-12-18
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Publication No.: US12334941B2Publication Date: 2025-06-17
- Inventor: Ali Parsa , Ahmed I Hussein
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder, P.C.
- Main IPC: H03L7/10
- IPC: H03L7/10 ; H03K3/037 ; H03L7/093

Abstract:
This disclosure is directed towards systems and methods that improve bandwidth shifting operations of an ADPLL without losing a lock of the ADPLL and having the benefit of being able to change the bandwidth an unlimited amount of times. Indeed, a processor may transmit amplification parameters to the ADPLL to implement a bandwidth shift. The shift may occur in response to a enable signal, such as a gear trigger control signal (gear_retime signal) or a enable signal generated to cause alignment of the shifting with a clock signal (e.g., enable signal generated by AND logic gates). These systems and methods described herein many enable multiple bandwidth changing operations to occur without compromising the complexity and footprint of the system.
Public/Granted literature
- US20240146318A1 Unlimited Bandwidth Shifting Systems and Methods of an All-Digital Phase Locked Loop Public/Granted day:2024-05-02
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