公开(公告)号：US20170126238A1

公开(公告)日：2017-05-04

申请号：US15402300

申请日：2017-01-10

Applicant: MAXLINEAR ASIA SINGAPORE PRIVATE LIMITED

Inventor： Igal Kushnir ,  Hung-Ming Chen ,  Wei-Hong Chen ,  Theodoros Chalvatzis ,  Seunghwan Yoon ,  Chin-Ming Chen ,  Tirdad Sowlati ,  Moche Cohen ,  Kobi Sturkovich ,  Shaul Klein

IPC: H03L7/18 ,  H03B19/00 ,  H03L7/099

CPC classification number: H03L7/18 ,  H03B19/00 ,  H03B21/00 ,  H03L7/099 ,  H03L7/23

Abstract: A stacked synthesizer for wide local oscillator (LO) generation using a dynamic divider. The phase locked loop can include a plurality of voltage controlled oscillators (VCOs), and a selector that can be configured to select an output of one of the plurality of VCOs. The selected output of one of the plurality of VCOs can be provided to an on-chip dynamic divider and to an off-chip dynamic divider for LO sharing. The dynamic dividers can be configured to generate synthesizer outputs based on a multiplication of the selected output of one of the plurality of VCOs by a factor (1+1/M), where M is a variable number.