公开(公告)号：US09337855B2

公开(公告)日：2016-05-10

申请号：US14532264

申请日：2014-11-04

Applicant: QUALCOMM Incorporated

Inventor： Ganesh Ramachandra Murthy Saripalli ,  Shahin Mehdizad Taleie ,  Michael Joseph McGowan ,  Jenny Kuo ,  Dongwon Seo ,  Jalal Ahmad Elhusseini

IPC: H03M1/10 ,  H03M1/68 ,  H03M1/66

CPC classification number: H03M1/1009 ,  H03M1/1019 ,  H03M1/66 ,  H03M1/68 ,  H03M1/742

Abstract: A method and apparatus for a method of calibrating a transmit digital to analog converter full-scale current. The method comprises generating a tuned reference current and then calibrating the tuned reference current to a selected value in order to produce a predetermined current value. The calibration further comprises dividing a reference voltage input over a resistor string. A band gap current is then generated using the divided reference voltage input. A tuned current output is then produced from a current steering digital to analog converter with the tuned output current stored in a register. The reference current for the transmit DAC is then generated based on the stored tuned output current.

Abstract translation: 一种用于校准发射数模转换器满量程电流的方法和装置。 该方法包括产生调谐的参考电流，然后将调谐的参考电流校准到选定的值，以便产生预定的电流值。 该校准还包括对在电阻串上输入的参考电压进行分频。 然后使用划分的参考电压输入产生带隙电流。 然后，从调节输出电流存储在寄存器中的当前转向数字到模拟转换器产生调谐电流输出。 然后基于存储的调谐输出电流产生发射DAC的参考电流。

公开(公告)号：US20150349793A1

公开(公告)日：2015-12-03

申请号：US14532264

申请日：2014-11-04

Applicant: QUALCOMM Incorporated

Inventor： Ganesh Ramachandra Murthy Saripalli ,  Shahin Mehdizad Taleie ,  Michael Joseph McGowan ,  Jenny Kuo ,  Dongwon Seo ,  Jalal Ahmad Elhusseini

IPC: H03M1/10 ,  H03M1/68

CPC classification number: H03M1/1009 ,  H03M1/1019 ,  H03M1/66 ,  H03M1/68 ,  H03M1/742

Abstract: A method and apparatus for a method of calibrating a transmit digital to analog converter full-scale current. The method comprises generating a tuned reference current and then calibrating the tuned reference current to a selected value in order to produce a predetermined current value. The calibration further comprises dividing a reference voltage input over a resistor string. A band gap current is then generated using the divided reference voltage input. A tuned current output is then produced from a current steering digital to analog converter with the tuned output current stored in a register. The reference current for the transmit DAC is then generated based on the stored tuned output current.

Abstract translation: 一种用于校准发射数模转换器满量程电流的方法和装置。 该方法包括产生调谐的参考电流，然后将调谐的参考电流校准到选定的值，以便产生预定的电流值。 该校准还包括对在电阻串上输入的参考电压进行分频。 然后使用分压的参考电压输入产生带隙电流。 然后，从调节输出电流存储在寄存器中的当前转向数字到模拟转换器产生调谐电流输出。 然后基于存储的调谐输出电流产生发射DAC的参考电流。