US 12,261,607 B2
Multi-path voltage-controlled oscillator with same varactor controlled by inputs from different paths and associated method
Tsz-Bin Liu, Hsinchu (TW); Mohammed Mohsen Abdulsalam Abdullatif, San Jose, CA (US); Ahmed Safwat Mohamed Aboelenein Elmallah, San Jose, CA (US); and Mohammed Tamer Ali, San Jose, CA (US)
Assigned to MEDIATEK INC., Hsinchu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on May 31, 2023, as Appl. No. 18/203,671.
Claims priority of provisional application 63/351,915, filed on Jun. 14, 2022.
Prior Publication US 2023/0403015 A1, Dec. 14, 2023
Int. Cl. H03L 7/099 (2006.01); H03B 5/12 (2006.01); H03L 7/08 (2006.01)
CPC H03L 7/099 (2013.01) [H03B 5/124 (2013.01); H03L 7/0807 (2013.01); H03B 2200/0042 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multi-path voltage-controlled oscillator (VCO) comprising:
a VCO core circuit, comprising:
a varactor, having a control node for receiving a control voltage; and
a control voltage generator circuit, arranged to receive at least one proportional path (P-path) control input and an integral path (I-path) control input, and generate and output the control voltage to the control node of the varactor, wherein the control voltage is set through time-division multiplexing of said at least one P-path control input and the I-path control input.