EP 1371139 A2 20031217 - LOW-NOISE LOAD PUMP FOR PHASE-LOCKING LOOP
Title (en)
LOW-NOISE LOAD PUMP FOR PHASE-LOCKING LOOP
Title (de)
RAUSCHARME LADUNGSPUMPE FÜR EINE PHASENREGELSCHLEIFE
Title (fr)
POMPE DE CHARGE A FAIBLE BRUIT POUR BOUCLE A VERROUILLAGE DE PHASE
Publication
Application
Priority
- FR 0104224 W 20011228
- FR 0017293 A 20001229
Abstract (en)
[origin: WO02054597A2] The invention concerns a load pump for phase-locking loop comprising a first current source (14), a second current source (16), several switches (M1, M2, M3, M4) adapted to communicate the first and/or the second current source with the load pump output (OUT). The second current source is driven by control means (18) adapted to store a physical quantity corresponding to the value of the current (l1) supplied by the first current source (14), so that the value of current (l2) supplied by the second current source is substantially equal to the value of current (l1) supplied by the first current source.
IPC 1-7
IPC 8 full level
H03L 7/093 (2006.01); H03L 7/089 (2006.01); H03L 7/18 (2006.01)
CPC (source: EP US)
H03L 7/0896 (2013.01 - EP US); H03L 7/18 (2013.01 - EP US)
Citation (search report)
See references of WO 02054597A2
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 02054597 A2 20020711; WO 02054597 A3 20030313; EP 1371139 A2 20031217; FR 2819123 A1 20020705; FR 2819123 B1 20030411; JP 2004517544 A 20040610; US 2003062958 A1 20030403; US 6822520 B2 20041123
DOCDB simple family (application)
FR 0104224 W 20011228; EP 01990618 A 20011228; FR 0017293 A 20001229; JP 2002554973 A 20011228; US 20417002 A 20021015