Global Patent Index - EP 3063873 A1

EP 3063873 A1 2016-09-07 - DRIVEN DUAL PHASE LOCK LOOP

Title (en)

DRIVEN DUAL PHASE LOCK LOOP

Title (de)

ANGETRIEBENER DOPPELPHASENREGELKREIS

Title (fr)

BOUCLE A VERROUILLAGE DE PHASE DUALE ET PILOTEE

Publication

EP 3063873 A1 (FR)

Application

EP 13789233 A

Priority

EP 2013072847 W

Abstract (en)

[origin: WO2015062663A1] The invention relates to a phase lock loop (100) comprising: - a loop filter (140), - a voltage controlled oscillator (150), - a frequency divider (160), - a frequency lock detector (113), able to emit a frequency lock indication signal (LOCK), - a digital phase and frequency comparator (110), - a charge pump (111), and - an analogue phase comparator (120). The loop is essentially characterized in that it further comprises a switch (130) equipped with an output connected to the loop filter (140), and with two inputs, this switch being able to selectively connect the first input, originating from the analogue phase comparator, to its output in response to the lock indication signal; and its second input, originating from the digital phase and frequency comparator, to its output, in the absence of the lock indication signal.

IPC 8 full level

H03L 7/113 (2006.01); H03L 7/087 (2006.01)

CPC

H03L 7/113 (2013.01); H03L 7/087 (2013.01); H03L 7/085 (2013.01)

Citation (search report)

See references of WO 2015062663A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family

WO 2015062663 A1 20150507; EP 3063873 A1 20160907