TW202318808A - Pll電路及發送系統 - Google Patents

Pll電路及發送系統 Download PDF

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Publication number
TW202318808A
TW202318808A TW111131890A TW111131890A TW202318808A TW 202318808 A TW202318808 A TW 202318808A TW 111131890 A TW111131890 A TW 111131890A TW 111131890 A TW111131890 A TW 111131890A TW 202318808 A TW202318808 A TW 202318808A
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TW
Taiwan
Prior art keywords
clock signal
signal
aforementioned
reference clock
switching
Prior art date
Application number
TW111131890A
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English (en)
Chinese (zh)
Inventor
藤田真由子
新名亮規
Original Assignee
日商新唐科技日本股份有限公司
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Application filed by 日商新唐科技日本股份有限公司 filed Critical 日商新唐科技日本股份有限公司
Publication of TW202318808A publication Critical patent/TW202318808A/zh

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/125—Discriminating pulses
    • H03K5/1252—Suppression or limitation of noise or interference
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/083—Details of the phase-locked loop the reference signal being additionally directly applied to the generator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail
    • H03L7/143—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail by switching the reference signal of the phase-locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/195—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number in which the counter of the loop counts between two different non zero numbers, e.g. for generating an offset frequency

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
TW111131890A 2021-08-25 2022-08-24 Pll電路及發送系統 TW202318808A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021137169 2021-08-25
JP2021-137169 2021-08-25

Publications (1)

Publication Number Publication Date
TW202318808A true TW202318808A (zh) 2023-05-01

Family

ID=85322853

Family Applications (1)

Application Number Title Priority Date Filing Date
TW111131890A TW202318808A (zh) 2021-08-25 2022-08-24 Pll電路及發送系統

Country Status (6)

Country Link
US (1) US12401367B2 (https=)
EP (1) EP4395178A4 (https=)
JP (1) JP7818608B2 (https=)
CN (1) CN117837087A (https=)
TW (1) TW202318808A (https=)
WO (1) WO2023027078A1 (https=)

Cited By (1)

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TWI869261B (zh) * 2024-04-10 2025-01-01 新唐科技股份有限公司 降低電源訊號線雜訊對解碼影響的方法以及使用其之解碼電路

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JP7818608B2 (ja) * 2021-08-25 2026-02-20 ヌヴォトンテクノロジージャパン株式会社 Ｐｌｌ回路および送信システム
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI869261B (zh) * 2024-04-10 2025-01-01 新唐科技股份有限公司 降低電源訊號線雜訊對解碼影響的方法以及使用其之解碼電路

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Publication number Publication date
WO2023027078A1 (ja) 2023-03-02
EP4395178A4 (en) 2024-12-25
JP7818608B2 (ja) 2026-02-20
US20240187006A1 (en) 2024-06-06
CN117837087A (zh) 2024-04-05
JPWO2023027078A1 (https=) 2023-03-02
US12401367B2 (en) 2025-08-26
EP4395178A1 (en) 2024-07-03

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