公开(公告)号：US10270460B1

公开(公告)日：2019-04-23

申请号：US16011272

申请日：2018-06-18

Applicant: Infineon Technologies AG

Inventor： Cesare Buffa ,  Fernando Cardes Garcia ,  Luis Hernandez-Corporales ,  Carlos Andres Perez Cruz ,  Andres Quintero Alonso ,  Andreas Wiesbauer

IPC: H03M1/12 ,  H03M1/14 ,  H03M1/00 ,  H03M1/46

Abstract: An analog-to-digital converter includes a ring oscillator having an input for receiving an analog signal, a coarse Gray code counter having a first input coupled to a first output of the ring oscillator and a second input for receiving a clock signal, a fine counter having first inputs coupled to secondary outputs of the ring oscillator and a second input for receiving the clock signal, a first difference generator having an input coupled to the output of the coarse counter, a second difference generator having an input coupled to the output of the fine counter, and an adder having a first input coupled to the output of the first difference generator, a second input coupled to the output of the second difference generator, and an output for providing a digital signal corresponding to the analog signal.

公开(公告)号：US11791833B2

公开(公告)日：2023-10-17

申请号：US17194697

申请日：2021-03-08

Applicant: Infineon Technologies AG

Inventor： Ruben Garvi Jimenez-Ortiz ,  Luis Hernandez-Corporales ,  Guillermo Alejandro Lopez Fernandez ,  Carlos Andres Perez Cruz ,  Andres Quintero Alonso

IPC: H03M1/12 ,  H03K3/03 ,  H03M1/60 ,  H04R19/04

CPC classification number: H03M1/12 ,  H03K3/0315 ,  H03M1/124 ,  H03M1/125 ,  H03M1/60 ,  H04R19/04 ,  H04R2201/003 ,  H04R2410/03

Abstract: A voltage-controlled oscillator analog-to-digital converter (VCO-ADC) includes a first source follower coupled between a first input terminal and a first internal node; a first VCO having an input coupled to a second internal node; a first variable resistor coupled between the first internal node and the second internal node; and a digital signal processing component coupled between an output of the first VCO and a output terminal.

公开(公告)号：US11290119B1

公开(公告)日：2022-03-29

申请号：US17072543

申请日：2020-10-16

Applicant: Infineon Technologies AG

Inventor： Christian Reindl ,  Andreas Wiesbauer ,  Pedro Augusto Borrego Lambin Torres Amaral ,  Luis Hernandez ,  Andres Quintero Alonso

IPC: H03M1/12 ,  H03M1/06 ,  H03K3/03

Abstract: A controlled oscillator Analog-to-Digital Converter (ADC) includes an analog interface configured for receiving an analog differential input signal, and configured for providing a differential control signal; first and second controlled oscillators configured for receiving the differential control signal; and a frequency-to-digital converter having a first input coupled to an output of the first controlled oscillator, a second input coupled to an output of the second controlled oscillator, and an output for providing a digital output signal proportional to the analog differential input signal, wherein the analog interface or at least one of the first and second controlled oscillators is configured for receiving at least one disturb signal to prevent locking between the first and second controlled oscillators.

公开(公告)号：US10886930B1

公开(公告)日：2021-01-05

申请号：US16526346

申请日：2019-07-30

Applicant: Infineon Technologies AG

Inventor： Cesare Buffa ,  Luis Hernandez-Corporales ,  Carlos Andres Perez Cruz ,  Andres Quintero Alonso ,  Andreas Wiesbauer

IPC: H03M1/06 ,  H03K23/54 ,  H03K3/03

Abstract: An analog-to-digital converter includes a ring oscillator having an input for receiving an analog signal, a coarse counter including a maximum length sequence generator having an input coupled to the output of the ring oscillator, a fine counter including a Johnson counter having an input coupled to the output of the ring oscillator, and a difference generator having a first input coupled to the output of the coarse counter, a second input coupled to the output of the fine counter, and an output for providing a digital signal corresponding to the analog signal.

公开(公告)号：US20220286774A1

公开(公告)日：2022-09-08

申请号：US17194697

申请日：2021-03-08

Applicant: Infineon Technologies AG

Inventor： Ruben Garvi Jimenez-Ortiz ,  Luis Hernandez-Corporales ,  Guillermo Alejandro Lopez Fernandez ,  Carlos Andres Perez Cruz ,  Andres Quintero Alonso

IPC: H04R3/00 ,  H03B5/24 ,  H03M1/12 ,  H04R19/04

Abstract: A voltage-controlled oscillator analog-to-digital converter (VCO-ADC) includes a first source follower coupled between a first input terminal and a first internal node; a first VCO having an input coupled to a second internal node; a first variable resistor coupled between the first internal node and the second internal node; and a digital signal processing component coupled between an output of the first VCO and a output terminal.

公开(公告)号：US11356112B1

公开(公告)日：2022-06-07

申请号：US17159833

申请日：2021-01-27

Applicant: Infineon Technologies AG

Inventor： Andres Quintero Alonso ,  Luis Hernandez-Corporales ,  Francois Marie Leger ,  Carlos Andres Perez Cruz

IPC: H03M1/12 ,  H03K3/03

Abstract: An analog-to-digital converter includes a voltage-controlled oscillator (VCO) having an input for receiving an analog input signal; a double binary counter having a first input coupled to a first output of the VCO, a second input coupled to a second output of the VCO; a first set of registers coupled to the first output of the double binary counter; a second set of registers coupled to the second output of the double binary counter; sense amplifiers coupled to the outputs of the VCO; and a correction component coupled to the first set of registers, the second set of registers, and the sense amplifiers, wherein the correction component generates a coarse count, a fine count, and combines the coarse count and the fine count to provide a digital output signal representative of the analog input signal.

公开(公告)号：US20220123756A1

公开(公告)日：2022-04-21

申请号：US17072543

申请日：2020-10-16

Applicant: Infineon Technologies AG

Inventor： Christian Reindl ,  Andreas Wiesbauer ,  Pedro Augusto Borrego Lambin Torres Amaral ,  Luis Hernandez ,  Andres Quintero Alonso

IPC: H03M1/06 ,  H03K3/03

Abstract: A controlled oscillator Analog-to-Digital Converter (ADC) includes an analog interface configured for receiving an analog differential input signal, and configured for providing a differential control signal; first and second controlled oscillators configured for receiving the differential control signal; and a frequency-to-digital converter having a first input coupled to an output of the first controlled oscillator, a second input coupled to an output of the second controlled oscillator, and an output for providing a digital output signal proportional to the analog differential input signal, wherein the analog interface or at least one of the first and second controlled oscillators is configured for receiving at least one disturb signal to prevent locking between the first and second controlled oscillators.