Invention Grant
- Patent Title: Digital phase controlled PLLs
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Application No.: US15559658Application Date: 2015-04-27
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Publication No.: US10224940B2Publication Date: 2019-03-05
- Inventor: Henrik Sjöland , Staffan Ek , Tony Påhlsson
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, PLLC
- International Application: PCT/EP2015/059071 WO 20150427
- International Announcement: WO2016/173614 WO 20161103
- Main IPC: H03L7/081
- IPC: H03L7/081 ; H03L7/23 ; H03L7/091 ; H03L7/183

Abstract:
A digital solution for phase control of an output of a phase-locked loop (PLL) (100) is provided to achieve a desired phase shift at the output of the PLL (100). To that end, a fraction of the pulses of a PLL feedback signal are time shifted to achieve a desired average time shift associated with the desired phase shift. As a result, a desired phase shift is generated at the output of the PLL (100), while a desired devisor of the feedback signal is maintained on average. The resulting digital solution provides highly accurate phase control.
Public/Granted literature
- US20180198454A1 Digital Phase Controlled PLLs Public/Granted day:2018-07-12
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