| 摘要 |
A method and a device for analog-to-digital converter (ADC) automatic correction are provided. In the method for ADC automatic correction, an adjustable reference voltage source is disposed inside a video chip; after the reference voltage source is connected to an ADC device, a system calculates, according to default performance parameters of the ADC device, a target value, of a voltage signal value converted into a digital signal value, of the reference voltage source; after the voltage signal value is converted by using the ADC device, the actual digital signal value is obtained; after the digital signal value and the target value are compared, a relevant conversion coefficient value in the ADC device is adjusted so as to achieve the purpose of automatic correction. The correction process of the ADC device is fully automatic without the help of an external correction tool and the correction operation of a professional, so that the labor cost is saved, the operation work time is shortened, and the correction effect is accurate. In addition, the device for ADC automatic correction is simple in structure and easy to produce and manufacture. |
