Semiconductor device, correction method in semiconductor device, and correction method of camera module

Abstract

A semiconductor device coupled to a device that outputs positional information representing a position, the semiconductor device including: a first external terminal to which the positional information is supplied; and a second external terminal, wherein sensitivity deviation information representing the deviation of the sensitivity of the device is received through the second external terminal, and a gain to amplify the positional information from the first external terminal is set on the basis of the sensitivity deviation information; wherein the first external terminal and the second external terminal are the same external terminals, and the positional information and the sensitivity deviation information are supplied in a time-division manner, wherein the device outputs a deviation between the sensitivity of the device and a predetermined sensitivity as the sensitivity deviation information, and wherein the semiconductor device includes a gain control amplifier that amplifies the positional information.

What is claimed is: 
     
         1 . A semiconductor device coupled to a device that outputs positional information representing a position, the semiconductor device comprising:
 a first external terminal to which the positional information is supplied; and   a second external terminal,   wherein sensitivity deviation information representing the deviation of the sensitivity of the device is received through the second external terminal, and a gain to amplify the positional information from the first external terminal is set on the basis of the sensitivity deviation information;   wherein the first external terminal and the second external terminal are the same external terminals, and the positional information and the sensitivity deviation information are supplied in a time-division manner,   wherein the device outputs a deviation between the sensitivity of the device and a predetermined sensitivity as the sensitivity deviation information, and   wherein the semiconductor device includes a gain control amplifier that amplifies the positional information, and the gain of the gain control amplifier is set on the basis of a value obtained by an operation between a parameter associated with the predetermined sensitivity and the sensitivity deviation information.   
     
     
         2 . The semiconductor device according to  claim 1 ,
 wherein the semiconductor device includes a total parameter holding circuit that holds the value obtained by the operation between the parameter associated with the predetermined sensitivity and the sensitivity deviation information.   
     
     
         3 . A semiconductor device coupled to a device that outputs positional information representing a position, the semiconductor device comprising:
 a first external terminal to which the positional information is supplied; and   a second external terminal,   wherein sensitivity deviation information representing the deviation of the sensitivity of the device is received through the second external terminal, and a gain to amplify the positional information from the first external terminal is set on the basis of the sensitivity deviation information;   wherein the first external terminal and the second external terminal are the same external terminals, and the positional information and the sensitivity deviation information are supplied in a time-division manner,   wherein the device outputs a deviation between the sensitivity of the device and a predetermined sensitivity as the sensitivity deviation information, and   wherein the semiconductor device includes a first gain control amplifier and a second gain control amplifier that amplify the positional information, the gain of the second gain control amplifier is set on the basis of the sensitivity deviation information, and the first gain control amplifier is coupled to the second gain control amplifier so that a gain to amplify the positional information is set on the basis of a value obtained by an operation between the gain parameter of the first gain control amplifier and the sensitivity deviation information.   
     
     
         4 . The semiconductor device according to  claim 3 ,
 wherein the semiconductor device includes a second holding circuit that holds the sensitivity deviation information.   
     
     
         5 . A semiconductor device coupled to a device that outputs positional information representing a position, the semiconductor device comprising:
 a first external terminal to which the positional information is supplied; and   a second external terminal,   wherein sensitivity deviation information representing the deviation of the sensitivity of the device is received through the second external terminal, and a gain to amplify the positional information from the first external terminal is set on the basis of the sensitivity deviation information;   wherein the first external terminal and the second external terminal are the same external terminals, and the positional information and the sensitivity deviation information are supplied in a time-division manner,   wherein the semiconductor device includes a processing unit that forms a driving signal driving a motor on the basis of the amplified positional information,   wherein the device comprises a gyro sensor, and   wherein the processing unit forms the driving signal on the basis of a signal from a hole sensor that detects a position changed by the motor and the amplified positional information.