公开(公告)号：JP2013219772A

公开(公告)日：2013-10-24

申请号：JP2013084527

申请日：2013-04-15

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： LIN I-HSIANG ,  PAN TZU-WANG ,  ZENG YI

IPC: H04B1/40 ,  H04B1/04

CPC classification number: H04B1/525

Abstract: PROBLEM TO BE SOLVED: To efficiently implement a frequency modulation (FM) transmitter and a non-FM receiver on the same IC chip.SOLUTION: The FM transmitter includes a digital FM modulator, a lowpass filter, an amplifier, and an LC tank circuit. The digital FM modulator receives a digital input signal, performs FM modulation with the digital input signal, and provides a digital FM signal. The lowpass filter filters the digital FM signal and provides a filtered FM signal. The amplifier amplifies the filtered FM signal and provides an output FM signal. The LC tank circuit filters the output FM signal. The digital FM modulator performs FM modulation by changing a variable divider ratio of a multi-modulus divider within a PLL. A delta-sigma modulator receives the digital input signal and generates a modulator output signal used to obtain the variable divider ratio.

Abstract translation: 要解决的问题：在同一个IC芯片上有效实现调频（FM）发射机和非FM接收机。解决方案：FM发射机包括数字FM调制器，低通滤波器，放大器和LC电路 。 数字FM调制器接收数字输入信号，用数字输入信号进行FM调制，并提供数字FM信号。 低通滤波器对数字FM信号进行滤波，并提供滤波后的FM信号。 放大器放大滤波的FM信号并提供输出FM信号。 LC振荡电路对输出的FM信号进行滤波。 数字FM调制器通过改变PLL内的多模式分频器的可变分频比来执行FM调制。 Δ-Σ调制器接收数字输入信号并产生用于获得可变分频比的调制器输出信号。

公开(公告)号：AU2017332549B2

公开(公告)日：2022-06-09

申请号：AU2017332549

申请日：2017-08-14

Applicant: QUALCOMM INC

Inventor： CHOI KIYONG ,  ZENG YI ,  KIM HONG SUN ,  VUJCIC SASHA ,  PATEL CHIRAG DIPAK ,  TASIC ALEKSANDAR MIODRAG ,  GATHMAN TIMOTHY DONALD ,  CHEN WU-HSIN ,  VAN ZALINGE KLAAS

IPC: H04B1/10 ,  H03D7/14

Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.

公开(公告)号：AU2017332549A1

公开(公告)日：2019-03-07

申请号：AU2017332549

申请日：2017-08-14

Applicant: QUALCOMM INC

Inventor： CHOI KIYONG ,  ZENG YI ,  KIM HONG SUN ,  VUJCIC SASHA ,  PATEL CHIRAG DIPAK ,  TASIC ALEKSANDAR MIODRAG ,  GATHMAN TIMOTHY DONALD ,  CHEN WU-HSIN ,  VAN ZALINGE KLAAS

IPC: H04B1/10 ,  H03D7/14

Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.

公开(公告)号：WO2010129925A2

公开(公告)日：2010-11-11

申请号：PCT/US2010034129

申请日：2010-05-07

Applicant: QUALCOMM INC ,  ZENG YI ,  PAN TZU-WANG ,  LIN I-HSIANG

Inventor： ZENG YI ,  PAN TZU-WANG ,  LIN I-HSIANG

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1293

Abstract: A VCO (for example, in an FM receiver) includes an LC resonant tank. The LC resonant tank includes a coarse tuning capacitor bank and a fine tuning capacitor bank. The coarse tuning capacitor bank contains a plurality of digitally controlled coarse tuning capacitor elements, each providing a first capacitance value when active. The fine tuning capacitor bank contains a plurality of digitally controlled fine tuning capacitor elements, each providing a second capacitance value when active. To address the practical problem of capacitor mismatch, capacitance overlap throughout the VCO tuning range is created by selecting the first and second capacitance values such that the capacitance value of the fine capacitor bank is greater than the first capacitance value when all of the digitally controlled fine tuning capacitor elements of the fine capacitor bank are active.

Abstract translation: VCO（例如，在FM接收机中）包括LC谐振回路。 LC谐振槽包括一个粗调谐电容器组和一个微调电容器组。 粗调谐电容器组包含多个数字控制的粗调电容器元件，每个主调制电容器元件在有源时提供第一电容值。 微调电容器组包含多个数字控制的微调电容器元件，每个微调电容器元件在有源时提供第二电容值。 为了解决电容器失配的实际问题，通过选择第一和第二电容值来创建整个VCO调谐范围内的电容重叠，使得当全部数字控制的精细时，精细电容器组的电容值大于第一电容值 精细电容器组的调谐电容器元件是有效的。

公开(公告)号：WO2010059872A2

公开(公告)日：2010-05-27

申请号：PCT/US2009065213

申请日：2009-11-19

Applicant: QUALCOMM INC ,  LIN I-HSIANG ,  PAN TZU-WANG ,  ZENG YI

Inventor： LIN I-HSIANG ,  PAN TZU-WANG ,  ZENG YI

IPC: H03D5/00

CPC classification number: H04B1/525

Abstract: Exemplary embodiments include a frequency modulation (FM) transmitter and a non-FM receiver, which may be implemented on the same IC chip. The FM transmitter may include a digital FM modulator, a lowpass filter, an amplifier, and an LC tank circuit. The digital FM modulator may receive a digital input signal, perform FM modulation with the digital input signal, and provide a digital FM signal. The lowpass filter may filter the digital FM signal and provide a filtered FM signal. The amplifier may amplify the filtered FM signal and provide an output FM signal. The LC tank circuit may filter the output FM signal. The digital FM modulator may perform FM modulation by changing a variable divider ratio of a multi-modulus divider within a PLL. A delta-sigma modulator may receive the digital input signal and generate a modulator output signal used to obtain the variable divider ratio.

Abstract translation: 示例性实施例包括可以在同一IC芯片上实现的调频（FM）发射机和非FM接收机。 FM发射机可以包括数字FM调制器，低通滤波器，放大器和LC电路。 数字FM调制器可以接收数字输入信号，使用数字输入信号执行FM调制，并提供数字FM信号。 低通滤波器可以对数字FM信号进行滤波并提供滤波后的FM信号。 放大器可以放大经滤波的FM信号并提供输出FM信号。 LC振荡电路可以对输出的FM信号进行滤波。 数字FM调制器可以通过改变PLL内的多模式分频器的可变分频比来执行FM调制。 Δ-Σ调制器可以接收数字输入信号并产生用于获得可变分频比的调制器输出信号。