公开(公告)号：US20230370031A1

公开(公告)日：2023-11-16

申请号：US18316325

申请日：2023-05-12

Applicant: NXP B.V.

Inventor： Sundeep Lakshmana Javvaji ,  Muhammed Bolatkale ,  Lucien Johannes Breems ,  Kofi Afolabi Anthony Makinwa

IPC: H03F3/387 ,  H03F1/26

CPC classification number: H03F3/387 ,  H03F1/26 ,  H03F2200/372

Abstract: A chopper circuit (100) for a multipath chopper amplifier (201) is described. The chopper circuit (100) comprises a first chopper device (110) in a first circuit path (111), wherein the first chopper device (110) is configured to be controlled by a first clock signal (315), which has a first frequency; and a second chopper device (120) in a second circuit path (121), parallel to the first circuit path (111), wherein the second chopper device (120) is configured to be controlled by a second clock signal (325), which has a second frequency, wherein the first frequency is greater than the second frequency. Furthermore, a corresponding method of chopping an input signal (102) is described.

公开(公告)号：US09325340B2

公开(公告)日：2016-04-26

申请号：US14475180

申请日：2014-09-02

Applicant: NXP B.V.

Inventor： Burak Gonen ,  Fabio Sebastiano ,  Kofi Afolabi Anthony Makinwa ,  Robert Hendrikus Margaretha van Veldhoven

IPC: H03M1/12 ,  H03M1/14 ,  H03M3/00 ,  H03M1/38

CPC classification number: H03M1/14 ,  H03M1/066 ,  H03M1/38 ,  H03M1/42 ,  H03M3/458

Abstract: An efficient analog to digital converter is disclosed. The efficient analog to digital converter includes a coarse analog to digital converter coupled to an input analog signal. The coarse analog to digital converter is configured to provide an approximate digital representation of the input analog signal. The efficient analog to digital converter also includes a fine analog to digital converter coupled to the input analog signal. The output of the coarse analog to digital converter is coupled to the fine analog to digital converter. The fine analog to digital converter is configured to set input range of the fine analog to digital converter as a function of the output of the coarse analog to digital converter.

Abstract translation: 公开了一种高效的模数转换器。 有效的模数转换器包括耦合到输入模拟信号的粗模数转换器。 粗略模数转换器被配置为提供输入模拟信号的近似数字表示。 高效的模数转换器还包括耦合到输入模拟信号的精细模数转换器。 粗略模数转换器的输出端连接到精细模数转换器。 精细模数转换器被配置为根据粗略模数转换器的输出设置精细模数转换器的输入范围。

公开(公告)号：US20160065231A1

公开(公告)日：2016-03-03

申请号：US14475180

申请日：2014-09-02

Applicant: NXP B.V.

Inventor： Burak Gonen ,  Fabio Sebastiano ,  Kofi Afolabi Anthony Makinwa ,  Robert Hendrikus Margaretha van Veldhoven

IPC: H03M1/14 ,  H03M1/38 ,  H03M3/00

CPC classification number: H03M1/14 ,  H03M1/066 ,  H03M1/38 ,  H03M1/42 ,  H03M3/458

Abstract: An efficient analog to digital converter is disclosed. The efficient analog to digital converter includes a coarse analog to digital converter coupled to an input analog signal. The coarse analog to digital converter is configured to provide an approximate digital representation of the input analog signal. The efficient analog to digital converter also includes a fine analog to digital converter coupled to the input analog signal. The output of the coarse analog to digital converter is coupled to the fine analog to digital converter. The fine analog to digital converter is configured to set input range of the fine analog to digital converter as a function of the output of the coarse analog to digital converter.

Abstract translation: 公开了一种高效的模数转换器。 有效的模数转换器包括耦合到输入模拟信号的粗模数转换器。 粗略模数转换器被配置为提供输入模拟信号的近似数字表示。 高效的模数转换器还包括耦合到输入模拟信号的精细模数转换器。 粗略模数转换器的输出端连接到精细模数转换器。 精细模数转换器被配置为根据粗略模数转换器的输出设置精细模数转换器的输入范围。