公开(公告)号：US11695383B2

公开(公告)日：2023-07-04

申请号：US17037110

申请日：2020-09-29

Applicant: MARVELL ASIA PTE, LTD.

Inventor： Yida Duan ,  Karthik Raviprakash ,  Parmanand Mishra

IPC: H03H7/40 ,  H03F1/56 ,  H03H7/38 ,  H04B1/16 ,  H04B1/18 ,  H04L25/02

CPC classification number: H03H7/40 ,  H03F1/565 ,  H03H7/383 ,  H04B1/16 ,  H04B1/18 ,  H04L25/0298 ,  H03H2007/386

Abstract: The present invention is directed to communication systems and electrical circuits. According to an embodiment, the present invention provides a termination circuit that includes an inductor network. The inductor network is coupled to a termination resistor and a capacitor network, which includes a first capacitor and a second capacitor. The termination resistor, the first capacitor, and the second capacitor are adjustable, and they affect attenuation of the termination circuit. There are other embodiments as well.

公开(公告)号：US11757355B1

公开(公告)日：2023-09-12

申请号：US17539878

申请日：2021-12-01

Applicant: Marvell Asia Pte, Ltd.

Inventor： Rajasekhar Nagulapalli ,  Simon Forey ,  Parmanand Mishra

IPC: H02M3/07 ,  H03L7/089 ,  H04L7/033

CPC classification number: H02M3/07 ,  H03L7/0891 ,  H04L7/033

Abstract: The present invention is directed to electrical circuits. According to an embodiment, the present invention provides a charge pump circuit with a bias section and a switch section. The switch section includes a first switch coupled to an early signal and a second switch coupled to a late signal. The charge pump additionally includes a low-pass filter. The switch section includes a first resistor and a second resistor. The first resistor is directly coupled to the first switch and the low-pass filter. The second resistor is directly coupled to the second switch and the first resistor. There are other embodiments as well.